732 FNUS56 KPDT 152121 FWFPDT Fire Weather Planning Forecast for NE Oregon and SE Washington National Weather Service Pendleton OR 221 PM PDT Fri Aug 15 2025 .DISCUSSION...A front moving through the Pacific Northwest today will bring rain showers to the forecast area this evening into Saturday morning. During the afternoon hours of Saturday and Sunday, there is a chance of thunderstorms developing over the mountains of central and eastern Oregon. Rain rates could lead to burn scar flooding over the eastern mountains of Oregon, primarily on Saturday. A dry and warming pattern is then expected to take hold Monday onward. ***Thunderstorms imply strong gusty winds*** ***Winds are 20 foot 10 minute averages*** ***CWR-chance of wetting rain 0.10 or greater*** ***Ventilation Index is derived from the transport wind multiplied by the mixing height in 100's of feet. Index categories are a generalized indicator and users are encourage to develop criteria that are suitable and representative of dispersion conditions in their local area of interest.*** Note: Max transport winds may not occur at the same time as max mixing height. WAZ695-161115- East Washington South Central Cascade Mountains- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Mostly cloudy. Showers. * Min temperature.....52-58...except 48-53 ridges. * Max humidity........84-99 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...West winds 2 to 7 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....Southwest winds 3 to 8 mph. * CWR.................80 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....Southwest around 15 mph. * Ventilation Index...Poor to fair (84-286) decreasing to poor (39-149) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy then becoming partly cloudy. Showers likely in the morning. * Max temperature.....66-75...except 57-66 ridges. * Min humidity........42-57 percent...except 53-68 percent ridges. * 20-foot winds....... * Valleys/lwr slopes...West winds 3 to 8 mph. * Ridges/upr slopes....West winds 3 to 8 mph. * CWR.................10 percent. * Chc of lightning....0 percent. * Mixing height.......7500 ft agl. * Transport winds.....West 10 to 15 mph. * Ventilation Index...Poor to fair (105-247) increasing to fair to good (285-527) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy then becoming partly cloudy. A slight chance of showers. * Min temperature.....45-51. * Max humidity........77-92 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...West winds 3 to 8 mph. * Ridges/upr slopes....West winds 3 to 8 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West around 15 mph. * Ventilation Index...Poor to fair (132-304) decreasing to poor (39-117) after midnight. .SUNDAY... * Sky/weather.........Partly cloudy then becoming mostly sunny. * Max temperature.....67-76...except 58-67 ridges. * Min humidity........37-52 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph becoming west 1 to 5 mph in the afternoon. * Ridges/upr slopes....West winds 2 to 6 mph in the morning becoming light less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......7500 ft agl. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (62-168) increasing to fair (210-342) in the afternoon. .Forecast days 3 through 7...... .MONDAY...Mostly cloudy. Lows 45 to 53. Highs 63 to 78. West winds 1 to 6 mph. .TUESDAY...Mostly clear. Lows 46 to 53. Highs 64 to 79. West winds 2 to 7 mph. .WEDNESDAY...Mostly clear. Lows 46 to 53. Highs 66 to 80. Northwest winds 2 to 7 mph. .THURSDAY...Clear. Lows 47 to 54. Highs 71 to 84. Northwest winds 2 to 7 mph. .FRIDAY...Clear. Lows 51 to 57. Highs 73 to 87. Northwest winds 1 to 6 mph. $$ WAZ690-161115- Kittitas Valley- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Mostly cloudy. A chance of showers in the evening, then showers after midnight. * Min temperature.....59-65. * Max humidity........81-96 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...West winds 3 to 8 mph. * Ridges/upr slopes....West winds 3 to 8 mph. * CWR.................50 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....Southwest 10 to 15 mph. * Ventilation Index...Fair (213-345) decreasing to poor (29-63) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy then becoming mostly sunny. A chance of showers in the morning. * Max temperature.....77-85...except 67-79 ridges. * Min humidity........33-45 percent. * 20-foot winds....... * Valleys/lwr slopes...West winds 4 to 9 mph. * Ridges/upr slopes....West winds 4 to 9 mph. * CWR.................10 percent. * Chc of lightning....0 percent. * Mixing height.......8500 ft agl. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (73-165) increasing to fair to good (483-679) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy then becoming mostly clear. * Min temperature.....51-57. * Max humidity........68-83 percent. * Humidity recovery...Good. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 4 to 10 mph. * Ridges/upr slopes....Northwest winds 4 to 10 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....Northwest around 15 mph. * Ventilation Index...Fair (258-412) decreasing to poor (43-129) after midnight. .SUNDAY... * Sky/weather.........Mostly sunny. * Max temperature.....76-83...except 66-78 ridges. * Min humidity........27-37 percent. * 20-foot winds....... * Valleys/lwr slopes...West winds 2 to 7 mph. * Ridges/upr slopes....West winds 2 to 7 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......8000 ft agl. * Transport winds.....West 10 to 15 mph. * Ventilation Index...Poor (67-181) increasing to fair (277-421) in the afternoon. .Forecast days 3 through 7...... .MONDAY...Partly cloudy. Lows 53 to 59. Highs 78 to 86. West winds 2 to 7 mph. .TUESDAY...Mostly clear. Lows 53 to 59. Highs 80 to 88. West winds 2 to 7 mph. .WEDNESDAY...Mostly clear. Lows 53 to 59. Highs 81 to 88. Northwest winds 4 to 9 mph. .THURSDAY...Clear. Lows 54 to 60. Highs 84 to 91. North winds 3 to 8 mph. .FRIDAY...Clear. Lows 57 to 63. Highs 86 to 93. North winds 2 to 7 mph. $$ WAZ694-161115- Yakama Alpine District- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Mostly cloudy. A chance of showers in the evening, then showers after midnight. * Min temperature.....51-58. * Max humidity........84-99 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Southwest winds 5 to 11 mph. * Ridges/upr slopes....Southwest winds 5 to 11 mph. * CWR.................60 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....Southwest around 20 mph. * Ventilation Index...Fair (202-374) decreasing to poor (52-150) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy then becoming mostly sunny. Showers likely in the morning. * Max temperature.....71-79...except 61-72 ridges. * Min humidity........36-51 percent. * 20-foot winds....... * Valleys/lwr slopes...Southwest winds 5 to 11 mph. * Ridges/upr slopes....Southwest winds 5 to 11 mph. * CWR.................20 percent. * Chc of lightning....0 percent. * Mixing height.......7500 ft agl. * Transport winds.....West 15 to 20 mph. * Ventilation Index...Poor to fair (112-214) increasing to fair to excellent (461-753) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy then becoming mostly clear. * Min temperature.....44-51. * Max humidity........80-95 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...West winds 3 to 8 mph. * Ridges/upr slopes....West winds 3 to 8 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West 10 to 15 mph. * Ventilation Index...Poor to fair (169-311) decreasing to poor (29-79) after midnight. .SUNDAY... * Sky/weather.........Mostly sunny. * Max temperature.....72-80...except 62-73 ridges. * Min humidity........26-41 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph becoming southwest 2 to 5 mph in the afternoon. * Ridges/upr slopes....West winds 1 to 6 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......7000 ft agl. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (51-117) increasing to fair (263-461) in the afternoon. .Forecast days 3 through 7...... .MONDAY...Partly cloudy. Lows 46 to 54. Highs 68 to 81. West winds 2 to 7 mph. .TUESDAY...Mostly clear. Lows 47 to 54. Highs 70 to 83. West winds 2 to 7 mph. .WEDNESDAY...Mostly clear. Lows 46 to 53. Highs 73 to 86. West winds 2 to 7 mph. .THURSDAY...Clear. Lows 49 to 56. Highs 76 to 89. West winds 1 to 6 mph. .FRIDAY...Clear. Lows 52 to 59. Highs 78 to 91. Terrain driven winds less than 5 mph. $$ ORZ691-WAZ691-161115- Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Partly cloudy then becoming mostly cloudy. A slight chance of showers in the evening. A chance of showers after midnight. * Min temperature.....60-65. * Max humidity........82-97 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Southwest winds 5 to 11 mph. Gusts to 25 mph in the evening. * Ridges/upr slopes....Southwest winds 5 to 11 mph. * CWR.................10 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....Southwest 10 to 15 mph. * Ventilation Index...Fair (243-359) decreasing to poor (27-73) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy. Showers likely in the morning, then a slight chance of showers in the afternoon. * Max temperature.....77-84. * Min humidity........38-53 percent. * 20-foot winds....... * Valleys/lwr slopes...Southwest winds 5 to 11 mph. * Ridges/upr slopes....Southwest winds 6 to 12 mph. * CWR.................50 percent. * Chc of lightning....0 percent. * Mixing height.......8500 ft agl. * Transport winds.....Southwest 10 to 15 mph. * Ventilation Index...Poor (64-146) increasing to fair to excellent (282-710) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy then becoming partly cloudy. * Min temperature.....54-60...except 49-57 ridges. * Max humidity........71-86 percent. * Humidity recovery...Good. * 20-foot winds....... * Valleys/lwr slopes...Southwest winds 4 to 9 mph. * Ridges/upr slopes....West winds 4 to 9 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West around 15 mph. * Ventilation Index...Poor to fair (175-373) decreasing to poor (40-100) after midnight. .SUNDAY... * Sky/weather.........Partly cloudy then becoming mostly sunny. * Max temperature.....78-85. * Min humidity........25-35 percent. * 20-foot winds....... * Valleys/lwr slopes...West winds 2 to 7 mph. * Ridges/upr slopes....West winds 2 to 7 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......7500 ft agl. * Transport winds.....Southwest around 10 mph. * Ventilation Index...Poor (54-156) increasing to fair to good (321-565) in the afternoon. .Forecast days 3 through 7...... .MONDAY...Partly cloudy. Lows 55 to 60. Highs 81 to 87. West winds 2 to 7 mph. .TUESDAY...Clear. Lows 55 to 60. Highs 82 to 89. West winds 3 to 8 mph. .WEDNESDAY...Clear. Lows 55 to 60. Highs 84 to 90. West winds 4 to 9 mph. .THURSDAY...Clear. Lows 55 to 60. Highs 87 to 93. Northwest winds 2 to 7 mph. .FRIDAY...Clear. Lows 58 to 63. Highs 89 to 95. Northwest winds 2 to 7 mph. $$ ORZ692-WAZ692-161115- Northern Blue Mountains of Oregon-Blue Mountains of Washington- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Partly cloudy then becoming mostly cloudy. * Min temperature.....54-61. * Max humidity........81-96 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 2 to 7 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....West winds 2 to 7 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West 5 to 10 mph. * Ventilation Index...Poor to fair (134-218) decreasing to poor (25-46) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy. Showers likely in the morning, then a chance of showers and a slight chance of thunderstorms in the afternoon. * Max temperature.....69-77...except 62-67 ridges. * Min humidity........55-70 percent...except 66-80 percent ridges. * 20-foot winds....... * Valleys/lwr slopes...West winds 1 to 5 mph. * Ridges/upr slopes....West winds 1 to 5 mph. * CWR.................30 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......5000 ft agl. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (56-120) increasing to poor to fair (121-237) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy. A slight chance of showers. * Min temperature.....50-58. * Max humidity........78-93 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Drainage winds less than 5 mph. * Ridges/upr slopes....light winds less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West 5 to 10 mph. * Ventilation Index...Poor (47-99) decreasing to poor (25-59) after midnight. .SUNDAY... * Sky/weather.........Partly cloudy then becoming mostly sunny. * Max temperature.....73-82...except 66-72 ridges. * Min humidity........35-46 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......7500 ft agl. * Transport winds.....Southwest around 5 mph. * Ventilation Index...Poor (32-108) increasing to poor to fair (180-282) in the afternoon. .Forecast days 3 through 7...... .MONDAY...A slight chance of showers. Partly cloudy. Lows 51 to 58. Highs 73 to 84. Terrain driven winds less than 5 mph. .TUESDAY...Clear. Lows 50 to 59. Highs 75 to 86. West winds up to 5 mph. .WEDNESDAY...Clear. Lows 50 to 58. Highs 75 to 86. West winds 2 to 7 mph. .THURSDAY...Clear. Lows 52 to 60. Highs 78 to 89. North winds 1 to 6 mph. .FRIDAY...Clear. Lows 54 to 62. Highs 80 to 91. North winds 1 to 6 mph. $$ ORZ693-WAZ693-161115- Canyon Grasslands of Wallowa County- Southeast Washington Grande Ronde Valley- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Partly cloudy. * Min temperature.....52-62. * Max humidity........69-84 percent...except 60-71 percent ridges. * Humidity recovery...Good. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 1 to 6 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....North winds 2 to 6 mph in the evening becoming light winds less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....Northwest 5 to 10 mph. * Ventilation Index...Poor to fair (130-216) decreasing to poor (25-44) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy. A chance of showers. A slight chance of thunderstorms in the afternoon. * Max temperature.....72-82...except 68-75 ridges. * Min humidity........45-59 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2 to 5 mph in the afternoon. * Ridges/upr slopes....light less than 5 mph becoming northwest 3 to 6 mph in the afternoon. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......8000 ft agl. * Transport winds.....West 5 to 10 mph. * Ventilation Index...Poor (48-96) increasing to fair (257-369) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy. A slight chance of thunderstorms in the evening. A chance of showers. * Min temperature.....51-60. * Max humidity........81-96 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 1 to 5 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....North winds 2 to 5 mph in the evening becoming light winds less than 5 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......Near surface. * Transport winds.....Northwest around 5 mph. * Ventilation Index...Poor (59-125) decreasing to poor (25-52) after midnight. .SUNDAY... * Sky/weather.........Mostly cloudy then becoming partly cloudy. A slight chance of showers. A slight chance of thunderstorms in the afternoon. * Max temperature.....75-83...except 69-76 ridges. * Min humidity........34-43 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................0 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......10000 ft agl. * Transport winds.....West around 5 mph. * Ventilation Index...Poor (28-62) increasing to poor to fair (157-295) in the afternoon. .Forecast days 3 through 7...... .MONDAY...A chance of showers and a slight chance of thunderstorms. Partly cloudy. Lows 50 to 60. Highs 79 to 88. Terrain driven winds less than 5 mph. .TUESDAY...Mostly clear. Lows 51 to 60. Highs 82 to 91. Northwest winds 1 to 5 mph. .WEDNESDAY...Mostly clear. Lows 50 to 60. Highs 80 to 90. Northwest winds 1 to 6 mph. .THURSDAY...Clear. Lows 51 to 60. Highs 82 to 91. Northeast winds 2 to 7 mph. .FRIDAY...Mostly clear. Lows 53 to 62. Highs 85 to 94. Northeast winds 2 to 7 mph. $$ ORZ701-161115- Eastern Columbia River Gorge of Oregon- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Mostly cloudy. Hazy in the evening. A chance of showers in the evening, then showers after midnight. * Min temperature.....57-62. * Max humidity........86-100 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Winds west winds 3 to 8 mph. * Ridges/upr slopes....West winds 2 to 6 mph in the evening becoming light winds less than 5 mph. * CWR.................50 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West 10 to 15 mph. * Ventilation Index...Poor to fair (178-378) decreasing to poor (26-104) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy then becoming partly cloudy. Showers likely in the morning. * Max temperature.....75-80. * Min humidity........42-55 percent. * 20-foot winds....... * Valleys/lwr slopes...West winds 3 to 8 mph. In the eastern Columbia River Gorge, west winds 2 to 7 mph increasing to 7 to 13 mph in the afternoon, Gusts to 25 mph in the afternoon. * Ridges/upr slopes....light less than 5 mph becoming west 2 to 7 mph in the afternoon. * CWR.................30 percent. * Chc of lightning....0 percent. * Mixing height.......6500 ft agl. * Transport winds.....West 10 to 15 mph. * Ventilation Index...Poor (69-171) increasing to fair to good (464-694) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy then becoming partly cloudy. * Min temperature.....49-56. * Max humidity........80-95 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...West winds 4 to 9 mph. * Ridges/upr slopes....West winds 3 to 8 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West 10 to 15 mph. * Ventilation Index...Fair (258-442) decreasing to poor (40-112) after midnight. .SUNDAY... * Sky/weather.........Mostly sunny. * Max temperature.....76-81. * Min humidity........32-45 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 1 to 6 mph in the afternoon. In the eastern Columbia River Gorge, west winds 2 to 7 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......6500 ft agl. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (54-170) increasing to fair to good (342-528) in the afternoon. .Forecast days 3 through 7...... .MONDAY...Partly cloudy. Lows 51 to 57. Highs 77 to 82. West winds 2 to 7 mph. .TUESDAY...Mostly clear. Lows 50 to 56. Highs 79 to 84. West winds 3 to 8 mph. .WEDNESDAY...Clear. Lows 51 to 56. Highs 82 to 88. West winds 4 to 9 mph. .THURSDAY...Clear. Lows 53 to 58. Highs 86 to 91. Northwest winds 2 to 7 mph. .FRIDAY...Clear. Lows 56 to 61. Highs 88 to 93. Northwest winds 1 to 6 mph. $$ ORZ702-161115- East Slopes of the Mt. Hood National Forest- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Mostly cloudy. A chance of showers in the evening, then showers after midnight. * Min temperature.....51-59. * Max humidity........85-100 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...West winds 1 to 5 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....light winds less than 5 mph. * CWR.................50 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West 15 to 20 mph. * Ventilation Index...Poor to fair (130-376) decreasing to poor (25-144) after midnight. .SATURDAY... * Sky/weather.........Cloudy then becoming partly cloudy. Showers in the morning, then a slight chance of showers in the afternoon. * Max temperature.....72-80...except 65-74 ridges. * Min humidity........40-51 percent...except 49-64 percent ridges. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph becoming west 1 to 5 mph in the afternoon. * Ridges/upr slopes....light less than 5 mph. * CWR.................30 percent. * Chc of lightning....0 percent. * Mixing height.......6000 ft agl. * Transport winds.....West around 15 mph. * Ventilation Index...Poor (52-168) increasing to fair to good (250-532) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy then becoming partly cloudy. * Min temperature.....45-52. * Max humidity........78-93 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...West winds 1 to 5 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....light winds less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West around 15 mph. * Ventilation Index...Poor to fair (139-351) decreasing to poor (25-94) after midnight. .SUNDAY... * Sky/weather.........Partly cloudy then becoming mostly sunny. * Max temperature.....74-81...except 66-75 ridges. * Min humidity........33-48 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......6500 ft agl. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (33-119) increasing to fair (251-403) in the afternoon. .Forecast days 3 through 7...... .MONDAY...Partly cloudy. Lows 47 to 55. Highs 68 to 81. Terrain driven winds less than 5 mph. .TUESDAY...Mostly clear. Lows 46 to 54. Highs 69 to 83. Terrain driven winds less than 5 mph. .WEDNESDAY...Mostly clear. Lows 47 to 55. Highs 72 to 86. West winds 1 to 5 mph. .THURSDAY...Clear. Lows 50 to 57. Highs 76 to 89. Terrain driven winds less than 5 mph. .FRIDAY...Clear. Lows 53 to 60. Highs 78 to 91. Terrain driven winds less than 5 mph. $$ ORZ695-161115- Eagle Cap Wilderness- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Partly cloudy. * Min temperature.....53-60...except 48-55 ridges. * Max humidity........63-78 percent. * Humidity recovery...Good. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 2 to 5 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....Northwest winds 2 to 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....Northwest around 5 mph. * Ventilation Index...Poor (81-175) decreasing to poor (25-51) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy. A slight chance of showers in the morning, then a chance of showers and a slight chance of thunderstorms in the afternoon. * Max temperature.....68-83...except 60-72 ridges. * Min humidity........45-60 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2 to 5 mph in the afternoon. * Ridges/upr slopes....light less than 5 mph becoming northwest 3 to 6 mph in the afternoon. * CWR.................0 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......8500 ft agl. * Transport winds.....West 5 to 10 mph. * Ventilation Index...Poor (34-86) increasing to poor to fair (191-341) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. * Min temperature.....51-58...except 45-53 ridges. * Max humidity........81-96 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 2 to 5 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....Northwest winds 2 to 5 mph in the evening becoming light winds less than 5 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......Near surface. * Transport winds.....Northwest around 5 mph. * Ventilation Index...Poor (31-139) decreasing to poor (25-61) after midnight. .SUNDAY... * Sky/weather.........Mostly cloudy then becoming partly cloudy. A slight chance of showers and thunderstorms in the afternoon. * Max temperature.....71-83...except 61-72 ridges. * Min humidity........32-44 percent...except 41-55 percent ridges. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......9500 ft agl. * Transport winds.....West 5 to 10 mph. * Ventilation Index...Poor (25-56) increasing to fair (225-421) in the afternoon. .Forecast days 3 through 7...... .MONDAY...A chance of showers and a slight chance of thunderstorms. Partly cloudy. Lows 48 to 57. Highs 70 to 85. Northwest winds 2 to 7 mph. .TUESDAY...Mostly clear. Lows 49 to 58. Highs 73 to 88. Northwest winds 2 to 7 mph. .WEDNESDAY...Clear. Lows 48 to 56. Highs 72 to 87. Northwest winds 2 to 7 mph. .THURSDAY...Clear. Lows 48 to 57. Highs 74 to 89. North winds 2 to 7 mph. .FRIDAY...Mostly clear. Lows 51 to 59. Highs 76 to 91. North winds 2 to 7 mph. $$ ORZ694-161115- Grande Ronde Valley of Oregon- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Partly cloudy then becoming mostly cloudy. * Min temperature.....55-60. * Max humidity........77-92 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 3 to 8 mph. * Ridges/upr slopes....Northwest winds 3 to 8 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....Northwest 5 to 10 mph. * Ventilation Index...Fair (238-286) decreasing to poor (45-69) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy. A chance of showers. A slight chance of thunderstorms in the afternoon. * Max temperature.....77-82. * Min humidity........49-57 percent. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 2 to 7 mph. * Ridges/upr slopes....North winds 2 to 7 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......5000 ft agl. * Transport winds.....Northwest around 10 mph. * Ventilation Index...Poor (98-146) increasing to fair (284-366) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. * Min temperature.....51-56. * Max humidity........88-100 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 2 to 7 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....North winds 2 to 7 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......Near surface. * Transport winds.....Northwest 5 to 10 mph. * Ventilation Index...Poor (100-148) decreasing to poor (42-64) after midnight. .SUNDAY... * Sky/weather.........Mostly cloudy then becoming partly cloudy. A slight chance of showers and thunderstorms in the afternoon. * Max temperature.....80-85. * Min humidity........33-38 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....Northwest winds 1 to 5 mph. * CWR.................0 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......7000 ft agl. * Transport winds.....West around 5 mph. * Ventilation Index...Poor (70-96) increasing to poor to fair (158-252) in the afternoon. .Forecast days 3 through 7...... .MONDAY...A chance of showers and a slight chance of thunderstorms. Partly cloudy. Lows 51 to 56. Highs 85 to 90. Northwest winds 1 to 5 mph. .TUESDAY...Mostly clear. Lows 50 to 55. Highs 87 to 92. Northwest winds 2 to 7 mph. .WEDNESDAY...Clear. Lows 50 to 55. Highs 86 to 91. Northwest winds 2 to 7 mph. .THURSDAY...Clear. Lows 51 to 56. Highs 89 to 94. North winds 2 to 7 mph. .FRIDAY...Mostly clear. Lows 53 to 58. Highs 91 to 96. North winds 2 to 7 mph. $$ ORZ699-161115- Western Forested Blue Mountains- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Partly cloudy then becoming mostly cloudy. * Min temperature.....51-57. * Max humidity........76-91 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 1 to 5 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....light winds less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....Northwest 5 to 10 mph. * Ventilation Index...Poor to fair (141-231) decreasing to poor (25-45) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy. A chance of showers. A slight chance of thunderstorms in the afternoon. * Max temperature.....69-76...except 63-69 ridges. * Min humidity........54-69 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................30 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......6000 ft agl. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (49-109) increasing to poor to fair (139-321) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. * Min temperature.....48-54. * Max humidity........82-97 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Drainage winds less than 5 mph. * Ridges/upr slopes....light winds less than 5 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......Near surface. * Transport winds.....West around 5 mph. * Ventilation Index...Poor (54-128) decreasing to poor (25-56) after midnight. .SUNDAY... * Sky/weather.........Mostly cloudy then becoming partly cloudy. A slight chance of showers and thunderstorms in the afternoon. * Max temperature.....73-80...except 67-74 ridges. * Min humidity........34-45 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......7500 ft agl. * Transport winds.....West 5 to 10 mph. * Ventilation Index...Poor (25-61) increasing to fair (229-363) in the afternoon. .Forecast days 3 through 7...... .MONDAY...A slight chance of showers and thunderstorms. Partly cloudy. Lows 48 to 54. Highs 73 to 83. Terrain driven winds less than 5 mph. .TUESDAY...Clear. Lows 48 to 53. Highs 76 to 85. Terrain driven winds less than 5 mph. .WEDNESDAY...Clear. Lows 48 to 53. Highs 75 to 85. Northwest winds 1 to 5 mph. .THURSDAY...Clear. Lows 50 to 55. Highs 78 to 87. North winds 1 to 5 mph. .FRIDAY...Mostly clear. Lows 52 to 57. Highs 80 to 90. North winds 1 to 5 mph. $$ ORZ696-161115- John Day Valley- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Partly cloudy then becoming mostly cloudy. A slight chance of showers after midnight. * Min temperature.....54-60. * Max humidity........74-85 percent. * Humidity recovery...Good...except Excellent ridges. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 2 to 6 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....Northwest winds 3 to 6 mph in the evening becoming light winds less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....Northwest 5 to 10 mph. * Ventilation Index...Fair (218-340) decreasing to poor (26-58) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy. Showers likely in the morning, then a chance of showers and a slight chance of thunderstorms in the afternoon. * Max temperature.....69-77...except 64-69 ridges. * Min humidity........53-63 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................40 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......5500 ft agl. * Transport winds.....West around 5 mph. * Ventilation Index...Poor (51-95) increasing to poor to fair (82-294) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy. A slight chance of showers and thunderstorms in the evening. * Min temperature.....51-57. * Max humidity........76-91 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Drainage winds less than 5 mph. * Ridges/upr slopes....light winds less than 5 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......Near surface. * Transport winds.....West around 5 mph. * Ventilation Index...Poor (70-150) decreasing to poor (35-75) after midnight. .SUNDAY... * Sky/weather.........Mostly cloudy then becoming mostly sunny. A slight chance of showers and thunderstorms in the afternoon. * Max temperature.....76-84...except 71-76 ridges. * Min humidity........28-35 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................0 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......8500 ft agl. * Transport winds.....West 5 to 10 mph. * Ventilation Index...Poor (35-69) increasing to fair (261-421) in the afternoon. .Forecast days 3 through 7...... .MONDAY...A slight chance of showers. Partly cloudy. Lows 50 to 56. Highs 79 to 88. Northwest winds 1 to 5 mph. .TUESDAY...Clear. Lows 50 to 55. Highs 80 to 89. Northwest winds 1 to 5 mph. .WEDNESDAY...Clear. Lows 51 to 56. Highs 81 to 90. Northwest winds 1 to 6 mph. .THURSDAY...Clear. Lows 52 to 57. Highs 84 to 93. North winds 1 to 6 mph. .FRIDAY...Mostly clear. Lows 54 to 59. Highs 86 to 94. Northeast winds 2 to 7 mph. $$ ORZ700-161115- Central Mountains of Oregon- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Partly cloudy then becoming mostly cloudy. A chance of showers after midnight. * Min temperature.....50-58. * Max humidity........81-95 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 3 to 8 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....Northwest winds 2 to 7 mph in the evening becoming light winds less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West around 10 mph. * Ventilation Index...Fair (273-413) decreasing to poor (25-57) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy. Showers likely in the morning, then a chance of showers and a slight chance of thunderstorms in the afternoon. * Max temperature.....69-77...except 64-69 ridges. * Min humidity........47-58 percent...except 58-68 percent ridges. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph becoming west 2 to 5 mph in the afternoon. * Ridges/upr slopes....light less than 5 mph. * CWR.................40 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......6500 ft agl. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (45-99) increasing to poor to fair (130-278) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy. A slight chance of showers and thunderstorms in the evening. * Min temperature.....46-53. * Max humidity........83-98 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 1 to 6 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....light winds less than 5 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......Near surface. * Transport winds.....Northwest 5 to 10 mph. * Ventilation Index...Poor to fair (84-200) decreasing to poor (34-80) after midnight. .SUNDAY... * Sky/weather.........Partly cloudy then becoming mostly sunny. A slight chance of showers in the afternoon. * Max temperature.....76-82...except 70-76 ridges. * Min humidity........27-32 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......7500 ft agl. * Transport winds.....Southwest 5 to 10 mph. * Ventilation Index...Poor (29-57) increasing to fair (280-496) in the afternoon. .Forecast days 3 through 7...... .MONDAY...A slight chance of showers. Partly cloudy. Lows 45 to 53. Highs 79 to 85. West winds 1 to 6 mph. .TUESDAY...Clear. Lows 44 to 53. Highs 80 to 86. West winds 2 to 7 mph. .WEDNESDAY...Clear. Lows 46 to 53. Highs 82 to 87. Northwest winds 2 to 7 mph. .THURSDAY...Clear. Lows 47 to 55. Highs 85 to 91. North winds 2 to 7 mph. .FRIDAY...Mostly clear. Lows 49 to 57. Highs 86 to 92. North winds 2 to 7 mph. $$ ORZ703-161115- Warm Springs Reservation- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Mostly cloudy. A slight chance of showers in the evening, then showers likely after midnight. * Min temperature.....58-63...except 52-57 ridges. * Max humidity........84-99 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Southwest winds 4 to 9 mph. * Ridges/upr slopes....Southwest winds 4 to 9 mph. * CWR.................30 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....Southwest around 15 mph. * Ventilation Index...Fair (238-378) decreasing to poor (29-147) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy. A slight chance of showers. * Max temperature.....73-81...except 60-71 ridges. * Min humidity........39-49 percent...except 57-72 percent ridges. * 20-foot winds....... * Valleys/lwr slopes...Southwest winds 3 to 8 mph. * Ridges/upr slopes....West winds 3 to 8 mph. * CWR.................40 percent. * Chc of lightning....0 percent. * Mixing height.......6500 ft agl. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (60-138) increasing to fair (309-485) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy then becoming partly cloudy. * Min temperature.....49-54. * Max humidity........75-88 percent. * Humidity recovery...Good...except Excellent ridges. * 20-foot winds....... * Valleys/lwr slopes...West winds 4 to 9 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....West winds 3 to 8 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West 10 to 15 mph. * Ventilation Index...Fair (206-366) decreasing to poor (37-87) after midnight. .SUNDAY... * Sky/weather.........Partly cloudy then becoming mostly sunny. * Max temperature.....77-84...except 65-74 ridges. * Min humidity........25-33 percent...except 35-50 percent ridges. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......8000 ft agl. * Transport winds.....Southwest around 10 mph. * Ventilation Index...Poor (38-98) increasing to fair (260-380) in the afternoon. .Forecast days 3 through 7...... .MONDAY...Partly cloudy. Lows 50 to 57. Highs 75 to 86. West winds 1 to 6 mph. .TUESDAY...Mostly clear. Lows 49 to 55. Highs 76 to 87. West winds 2 to 7 mph. .WEDNESDAY...Clear. Lows 50 to 55. Highs 78 to 89. Northwest winds 2 to 7 mph. .THURSDAY...Clear. Lows 53 to 58. Highs 82 to 91. North winds 2 to 7 mph. .FRIDAY...Clear. Lows 55 to 60. Highs 84 to 93. North winds 2 to 7 mph. $$ ORZ704-161115- Northern Deschutes National Forest- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Mostly cloudy. A slight chance of showers in the evening, then showers likely after midnight. * Min temperature.....50-56. * Max humidity........88-100 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Southwest winds 4 to 9 mph. * Ridges/upr slopes....Southwest winds 4 to 10 mph. * CWR.................20 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West 15 to 20 mph. * Ventilation Index...Fair (220-420) decreasing to poor (43-199) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy. A chance of showers. A slight chance of thunderstorms in the afternoon. * Max temperature.....71-77...except 58-67 ridges. * Min humidity........47-57 percent...except 63-78 percent ridges. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph becoming west 2 to 6 mph in the afternoon. * Ridges/upr slopes....West winds 3 to 8 mph. * CWR.................50 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......6000 ft agl. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (58-170) increasing to poor to fair (199-425) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy then becoming partly cloudy. A slight chance of showers in the evening. * Min temperature.....44-50. * Max humidity........82-97 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...West winds 2 to 6 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....West winds 2 to 7 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West 10 to 15 mph. * Ventilation Index...Poor to fair (124-286) decreasing to poor (34-84) after midnight. .SUNDAY... * Sky/weather.........Partly cloudy then becoming mostly sunny. * Max temperature.....77-83...except 63-74 ridges. * Min humidity........28-35 percent...except 37-52 percent ridges. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......8000 ft agl. * Transport winds.....Southwest 5 to 10 mph. * Ventilation Index...Poor (32-92) increasing to fair (274-380) in the afternoon. .Forecast days 3 through 7...... .MONDAY...Partly cloudy. Lows 45 to 52. Highs 69 to 83. West winds 1 to 6 mph. .TUESDAY...Mostly clear. Lows 45 to 50. Highs 71 to 84. West winds 2 to 7 mph. .WEDNESDAY...Clear. Lows 45 to 51. Highs 74 to 88. West winds 2 to 7 mph. .THURSDAY...Clear. Lows 48 to 54. Highs 77 to 90. North winds 2 to 7 mph. .FRIDAY...Clear. Lows 50 to 56. Highs 79 to 92. North winds 1 to 6 mph. $$ ORZ705-161115- Southern Deschutes National Forest- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Mostly cloudy. A chance of showers after midnight. * Min temperature.....46-52. * Max humidity........92-100 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...West winds 2 to 6 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....West winds 2 to 7 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....West 10 to 15 mph. * Ventilation Index...Fair (236-394) decreasing to poor (31-121) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy. Showers likely in the morning, then a chance of showers and a slight chance of thunderstorms in the afternoon. * Max temperature.....67-72...except 57-65 ridges. * Min humidity........60-68 percent...except 68-83 percent ridges. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....West winds 2 to 7 mph in the morning becoming light less than 5 mph. * CWR.................60 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......4500 ft agl. * Transport winds.....Southwest around 10 mph. * Ventilation Index...Poor (60-136) increasing to poor to fair (131-221) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy then becoming partly cloudy. A slight chance of showers and thunderstorms in the evening. * Min temperature.....41-47. * Max humidity........95-100 percent...except 83-98 percent ridges. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Drainage winds less than 5 mph. * Ridges/upr slopes....light winds less than 5 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......Near surface. * Transport winds.....West around 5 mph. * Ventilation Index...Poor (62-120) decreasing to poor (26-48) after midnight. .SUNDAY... * Sky/weather.........Partly cloudy then becoming mostly sunny. A slight chance of showers and thunderstorms in the afternoon. * Max temperature.....73-78...except 64-72 ridges. * Min humidity........32-40 percent...except 36-51 percent ridges. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................0 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......7500 ft agl. * Transport winds.....Southwest 5 to 10 mph. * Ventilation Index...Poor (31-61) increasing to fair to good (368-506) in the afternoon. .Forecast days 3 through 7...... .MONDAY...A slight chance of showers. Partly cloudy. Lows 42 to 49. Highs 71 to 81. West winds up to 5 mph. .TUESDAY...Mostly clear. Lows 40 to 47. Highs 72 to 83. West winds up to 5 mph. .WEDNESDAY...Mostly clear. Lows 41 to 48. Highs 75 to 85. Northwest winds up to 5 mph. .THURSDAY...Mostly clear. Lows 43 to 50. Highs 79 to 88. Northeast winds up to 5 mph. .FRIDAY...Mostly clear. Lows 45 to 53. Highs 80 to 90. North winds 1 to 5 mph. $$ ORZ697-161115- Central Blue Mountains- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Partly cloudy then becoming mostly cloudy. * Min temperature.....49-55. * Max humidity........75-90 percent. * Humidity recovery...Excellent...except Good ridges. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 2 to 5 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....Northwest winds 1 to 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....Northwest 5 to 10 mph. * Ventilation Index...Fair (217-313) decreasing to poor (25-50) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy. A chance of showers. A slight chance of thunderstorms in the afternoon. * Max temperature.....70-76...except 65-73 ridges. * Min humidity........47-62 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 3 to 6 mph in the afternoon. * Ridges/upr slopes....West winds 1 to 6 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......8000 ft agl. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (50-110) increasing to fair to good (272-518) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. * Min temperature.....46-52. * Max humidity........86-100 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 1 to 5 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....Northwest winds 1 to 5 mph in the evening becoming light winds less than 5 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......Near surface. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (79-199) decreasing to poor (25-70) after midnight. .SUNDAY... * Sky/weather.........Mostly cloudy then becoming partly cloudy. A chance of showers and a slight chance of thunderstorms in the afternoon. * Max temperature.....73-78...except 68-74 ridges. * Min humidity........34-43 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................20 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......8500 ft agl. * Transport winds.....West 5 to 10 mph. * Ventilation Index...Poor (33-69) increasing to fair (350-496) in the afternoon. .Forecast days 3 through 7...... .MONDAY...A chance of showers and a slight chance of thunderstorms. Partly cloudy. Lows 46 to 53. Highs 75 to 82. Southwest winds 2 to 7 mph. .TUESDAY...Clear. Lows 45 to 52. Highs 78 to 84. West winds 1 to 5 mph. .WEDNESDAY...Clear. Lows 45 to 51. Highs 78 to 85. Northwest winds 1 to 6 mph. .THURSDAY...Clear. Lows 47 to 53. Highs 81 to 88. North winds 1 to 5 mph. .FRIDAY...Mostly clear. Lows 49 to 55. Highs 82 to 89. Terrain driven winds less than 5 mph. $$ ORZ698-161115- Southern Blue Mountains- 221 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.........Partly cloudy then becoming mostly cloudy. * Min temperature.....50-56. * Max humidity........68-83 percent. * Humidity recovery...Excellent...except Good ridges. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 2 to 6 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....light winds less than 5 mph. * CWR.................0 percent. * Chc of lightning....0 percent. * Mixing height.......Near surface. * Transport winds.....Northwest around 10 mph. * Ventilation Index...Fair (274-358) decreasing to poor (26-66) after midnight. .SATURDAY... * Sky/weather.........Mostly cloudy. A slight chance of showers in the morning. A chance of showers and a slight chance of thunderstorms in the afternoon. * Max temperature.....72-82. * Min humidity........36-51 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 3 to 6 mph in the afternoon. * Ridges/upr slopes....light less than 5 mph becoming northwest 3 to 6 mph in the afternoon. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......8500 ft agl. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (73-135) increasing to fair to good (387-683) in the afternoon. .SATURDAY NIGHT... * Sky/weather.........Mostly cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. * Min temperature.....47-54. * Max humidity........83-98 percent. * Humidity recovery...Excellent. * 20-foot winds....... * Valleys/lwr slopes...Northwest winds 1 to 5 mph in the evening becoming drainage winds less than 5 mph. * Ridges/upr slopes....light winds less than 5 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......Near surface. * Transport winds.....Northwest 10 to 15 mph. * Ventilation Index...Poor to fair (161-333) decreasing to poor (35-121) after midnight. .SUNDAY... * Sky/weather.........Mostly cloudy then becoming partly cloudy. A chance of showers and a slight chance of thunderstorms in the afternoon. * Max temperature.....74-81. * Min humidity........31-38 percent. * 20-foot winds....... * Valleys/lwr slopes...Upslope less than 5 mph. * Ridges/upr slopes....light less than 5 mph. * CWR.................10 percent. * Chc of lightning....20 percent (slight chance). * Mixing height.......9000 ft agl. * Transport winds.....West around 10 mph. * Ventilation Index...Poor (45-91) increasing to fair to good (486-608) in the afternoon. .Forecast days 3 through 7...... .MONDAY...A chance of showers and a slight chance of thunderstorms. Partly cloudy. Lows 46 to 53. Highs 78 to 85. West winds 2 to 7 mph. .TUESDAY...Clear. Lows 45 to 53. Highs 81 to 88. West winds 2 to 7 mph. .WEDNESDAY...Clear. Lows 46 to 52. Highs 82 to 88. Northwest winds 2 to 7 mph. .THURSDAY...Mostly clear. Lows 49 to 54. Highs 85 to 91. Northeast winds 1 to 6 mph. .FRIDAY...Mostly clear. Lows 50 to 57. Highs 87 to 93. East winds 1 to 6 mph. $$ .8-14 DAY OUTLOOK for Saturday August 23 through Friday August 29... A greater chance of above-normal temperatures and above-normal precipitation. $$