001 FNUS55 KREV 251203 FWFREV Fire Weather Planning Forecast National Weather Service Reno NV 403 AM PST Wed Nov 25 2020 ...Gusty westerly winds today, turning easterly tonight... .DISCUSSION... Gusty west to northwest winds today due to a cold frontal passage with a few very light showers possible, but little if any chance for wetting precipitation. East winds to follow tonight into Thanksgiving Day, potentially rather gusty along the Sierra crest westward. Inversions strengthen going into the weekend with light winds and poor ventilation likely. Note: Thunderstorms imply gusty and erratic winds. Note: Mixing Heights are in feet above ground level of the valley floors. Note: Please see operating plan for detailed zone descriptions http://www.wrh.noaa.gov/firewx/?wfo=rev NVZ420-260030- Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties- 403 AM PST Wed Nov 25 2020 .TODAY... * Sky/Weather........Partly cloudy. Slight chance of snow in the afternoon. * Max Temperature.... * Valleys..........40-50. * Mid Slope........37-47. * 24 hr trend......4 degrees cooler. * Min Humidity....... * Valleys..........34-44%. * Mid Slope........36-46%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....Northwest winds 9 to 17 mph increasing to 12 to 18 mph late in the afternoon. Gusts to 30 mph. * Ridge Top........West winds 20 to 30 mph with gusts to 45 mph. * Haines Index.......4. * LAL................1. * Chc Wetting Rain...5%. * Mixing Height......200-500 ft agl then 2900-3500 ft agl in the afternoon. * Transport Winds....West 10 to 15 mph. * Ventilation........Poor increasing to good in the afternoon. .TONIGHT... * Sky/Weather........Partly cloudy then becoming clear. * Min Temperature.... * Valleys..........12-22. * Mid Slope........17-27. * 24 hr trend......6 degrees cooler. * Max Humidity....... * Valleys..........82-92%. * Mid Slope........69-79%. * 24 hr trend......4% wetter. * 20-Foot Winds...... * Valleys/Slope....Northwest winds 9 to 14 mph with gusts to 25 mph until early morning becoming downslope 2 to 5 mph. * Ridge Top........North winds 10 to 15 mph with gusts to 25 mph. * Haines Index.......2. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......900-1400 ft agl decreasing to 600 ft agl after midnight. * Transport Winds....Light winds. * Ventilation........Marginal. .THANKSGIVING DAY... * Sky/Weather........Partly cloudy then becoming sunny. * Max Temperature.... * Valleys..........34-44. * Mid Slope........30-40. * Min Humidity....... * Valleys..........35-45%. * Mid Slope........39-49%. * 20-Foot Winds...... * Valleys/Slope....Northeast winds 9 to 14 mph. * Ridge Top........East winds 10 to 20 mph with gusts to 35 mph. * Haines Index.......2-3. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......600 ft agl increasing to 2700-3400 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Poor increasing to fair in the afternoon. .Extended... .THURSDAY NIGHT...Clear. Lows 10-20. Southeast winds 9 to 14 mph. .FRIDAY...Clear. Highs 36-46. Lows 10-20. Slope winds. .SATURDAY...Clear. Highs 42-52. Lows 12-22. Slope winds. .SUNDAY...Partly cloudy. Highs 43-52. Lows 13-23. Slope winds. .MONDAY...Partly cloudy. Highs 45-55. Lows 14-24. .TUESDAY...Partly cloudy. Highs 41-49. $$ NVZ421-260030- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- 403 AM PST Wed Nov 25 2020 .TODAY... * Sky/Weather........Partly cloudy then becoming sunny. * Max Temperature.... * Valleys..........43-53. * Mid Slope........38-48. * 24 hr trend......Little change. * Min Humidity....... * Valleys..........23-33%. * Mid Slope........21-31%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....Southwest winds 9 to 16 mph shifting to the northwest 12 to 18 mph late in the afternoon. Gusts to 40 mph decreasing to 30 mph late in the afternoon. * Ridge Top........West winds 25 to 40 mph. Gusts to 65 mph decreasing to 50 mph late in the afternoon. * Haines Index.......4. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......200-500 ft agl then 2200-3200 ft agl in the afternoon. * Transport Winds....Southwest 10 to 20 mph. * Ventilation........Poor increasing to good in the afternoon. .TONIGHT... * Sky/Weather........Partly cloudy then becoming mostly cloudy. Slight chance of snow in the evening. * Min Temperature.... * Valleys..........5-15. * Mid Slope........16-26. * 24 hr trend......8 degrees cooler. * Max Humidity....... * Valleys..........76-86%. * Mid Slope........62-72%. * 24 hr trend......8% wetter. * 20-Foot Winds...... * Valleys/Slope....North winds 9 to 14 mph. Gusts to 30 mph. * Ridge Top........North winds 15 to 25 mph. Gusts to 40 mph decreasing to 25 mph after midnight. * Haines Index.......4. * LAL................1. * Chc Wetting Rain...5%. * Mixing Height......800 ft agl. * Transport Winds....Light winds. * Ventilation........Poor. .THANKSGIVING DAY... * Sky/Weather........Mostly cloudy then becoming sunny. * Max Temperature.... * Valleys..........31-41. * Mid Slope........26-36. * Min Humidity....... * Valleys..........27-37%. * Mid Slope........25-35%. * 20-Foot Winds...... * Valleys/Slope....Northeast winds 9 to 14 mph. * Ridge Top........East winds 20 to 30 mph with gusts to 60 mph. * Haines Index.......2-3. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......600-1000 ft agl increasing to 2000-3000 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Fair. .Extended... .THURSDAY NIGHT...Clear. Lows 3-13. Northeast winds 9 to 14 mph shifting to the south 7 to 12 mph after midnight. .FRIDAY...Clear. Highs 40-48. Lows 3-13. Slope winds. .SATURDAY...Clear. Highs 46-54. Lows 8-18. Slope winds. .SUNDAY...Partly cloudy. Highs 46-54. Lows 9-19. Slope winds. .MONDAY...Partly cloudy. Highs 48-56. Lows 8-18. .TUESDAY...Sunny. Highs 42-50. $$ CAZ272-260030- Greater Lake Tahoe Area- 403 AM PST Wed Nov 25 2020 .TODAY... * Sky/Weather........Sunny then becoming partly cloudy. * Max Temperature.... * Valleys..........36-44. * Mid Slope........30-40. * 24 hr trend......5 degrees cooler. * Min Humidity....... * Valleys..........49-59%. * Mid Slope........49-59%. * 24 hr trend......5% wetter. * 20-Foot Winds...... * Valleys/Slope....Southwest winds 12 to 18 mph shifting to the west 9 to 15 mph in the afternoon. Gusts to 35 mph. * Ridge Top........Southwest winds 25 to 40 mph with gusts to 60 mph shifting to the west 15 to 25 mph with gusts to 40 mph late in the afternoon. * Haines Index.......4. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......700 ft agl increasing to 3000-3500 ft agl in the afternoon. * Transport Winds....Light winds becoming southwest 15 to 20 mph in the afternoon. * Ventilation........Poor increasing to good in the afternoon. .TONIGHT... * Sky/Weather........Partly cloudy. * Min Temperature.... * Valleys..........10-20. * Mid Slope........14-24. * 24 hr trend......7 degrees cooler. * Max Humidity....... * Valleys..........84-94%. * Mid Slope........75-85%. * 24 hr trend......4% wetter. * 20-Foot Winds...... * Valleys/Slope....Northeast winds 8 to 13 mph with gusts to 20 mph increasing to east 12 to 18 mph with gusts to 30 mph in the morning. * Ridge Top........Northeast winds 10 to 20 mph. Gusts to 30 mph. * Haines Index.......3. * LAL................1. * Chc Wetting Rain...5%. * Mixing Height......700 ft agl. * Transport Winds....Light winds. * Ventilation........Poor. .THANKSGIVING DAY... * Sky/Weather........Mostly cloudy then becoming sunny. * Max Temperature.... * Valleys..........29-38. * Mid Slope........23-33. * Min Humidity....... * Valleys..........40-50%. * Mid Slope........39-49%. * 20-Foot Winds...... * Valleys/Slope....East winds 12 to 20 mph with gusts to 30 mph. * Ridge Top........East winds 15 to 25 mph with gusts to 45 mph increasing to 25 to 35 mph with gusts to 60 mph in the late morning and afternoon. * Haines Index.......2-3. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......800 ft agl increasing to 2500 ft agl in the afternoon. * Transport Winds....Light winds becoming east 10 to 15 mph in the afternoon. * Ventilation........Poor increasing to fair in the afternoon. .Extended... .THURSDAY NIGHT...Clear. Lows 9-19. East winds 9 to 15 mph. .FRIDAY...Clear. Highs 35-45. Lows 9-19. Slope winds. .SATURDAY...Clear. Highs 42-52. Lows 11-21. Slope winds. .SUNDAY...Partly cloudy. Highs 41-51. Lows 13-23. Slope winds. .MONDAY...Partly cloudy. Highs 42-52. Lows 13-23. .TUESDAY...Sunny. Highs 38-48. $$ NVZ423-260030- West Humboldt Basin in Pershing County- 403 AM PST Wed Nov 25 2020 .TODAY... * Sky/Weather........Partly cloudy. Chance of rain in the morning. Chance of snow. * Max Temperature.... * Valleys..........42-50. * Mid Slope........37-47. * 24 hr trend......Little change. * Min Humidity....... * Valleys..........38-48%. * Mid Slope........38-48%. * 24 hr trend......4% drier. * 20-Foot Winds...... * Valleys/Slope....Northwest winds 9 to 17 mph with gusts to 25 mph. * Ridge Top........Northwest winds 20 to 30 mph with gusts to 40 mph. * Haines Index.......4. * LAL................1. * Chc Wetting Rain...10%. * Mixing Height......200-500 ft agl then 3400-4200 ft agl in the afternoon. * Transport Winds....Light winds becoming northwest 10 to 20 mph in the afternoon. * Ventilation........Poor increasing to good in the afternoon. .TONIGHT... * Sky/Weather........Clear. * Min Temperature.... * Valleys..........16-26. * Mid Slope........19-27. * 24 hr trend......5 degrees cooler. * Max Humidity....... * Valleys..........81-91%. * Mid Slope........73-83%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....North winds 8 to 13 mph with gusts to 25 mph in the evening becoming downslope 2 to 5 mph. * Ridge Top........North winds 10 to 20 mph with gusts to 30 mph. * Haines Index.......2-3. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......1400-1900 ft agl in the evening then 200-500 ft agl. * Transport Winds....Light winds. * Ventilation........Fair. .THANKSGIVING DAY... * Sky/Weather........Partly cloudy then becoming sunny. * Max Temperature.... * Valleys..........39-45. * Mid Slope........33-43. * Min Humidity....... * Valleys..........37-47%. * Mid Slope........40-50%. * 20-Foot Winds...... * Valleys/Slope....Northeast winds 9 to 14 mph. * Ridge Top........Northeast winds 10 to 15 mph with gusts to 30 mph. * Haines Index.......2-3. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......200-500 ft agl then 3100 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Fair. .Extended... .THURSDAY NIGHT...Clear. Lows 13-23. Northeast winds 7 to 12 mph in the evening becoming downslope 2 to 5 mph. .FRIDAY...Clear. Highs 41-47. Lows 13-23. Slope winds. .SATURDAY...Clear. Highs 43-51. Lows 13-23. Slope winds. .SUNDAY...Partly cloudy. Highs 44-52. Lows 13-23. Slope winds. .MONDAY...Partly cloudy. Highs 46-54. Lows 16-26. .TUESDAY...Partly cloudy. Highs 43-51. $$ NVZ429-260030- Lahontan Basin including Churchill and Eastern Mineral Counties- 403 AM PST Wed Nov 25 2020 .TODAY... * Sky/Weather........Partly cloudy. * Max Temperature.... * Valleys..........43-53. * Mid Slope........41-51. * 24 hr trend......Little change. * Min Humidity....... * Valleys..........27-37%. * Mid Slope........21-31%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....Upslope 4 to 8 mph becoming north 9 to 17 mph with gusts to 25 mph in the late morning and afternoon. * Ridge Top........Northwest winds 15 to 25 mph. Gusts to 45 mph until late afternoon. * Haines Index.......4. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......200-500 ft agl then 2200-3200 ft agl in the afternoon. * Transport Winds....Light winds becoming northwest 10 to 15 mph in the afternoon. * Ventilation........Poor increasing to good in the afternoon. .TONIGHT... * Sky/Weather........Partly cloudy then becoming clear. * Min Temperature.... * Valleys..........14-24. * Mid Slope........18-28. * 24 hr trend......5 degrees cooler. * Max Humidity....... * Valleys..........78-88%. * Mid Slope........64-74%. * 24 hr trend......7% wetter. * 20-Foot Winds...... * Valleys/Slope....North winds 9 to 15 mph with gusts to 30 mph shifting to the northwest 8 to 13 mph with gusts to 25 mph in the late evening and overnight. * Ridge Top........North winds 10 to 20 mph with gusts to 30 mph. * Haines Index.......2. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......1200-1700 ft agl decreasing to 600 ft agl after midnight. * Transport Winds....North 10 to 15 mph in the evening becoming light. * Ventilation........Fair. .THANKSGIVING DAY... * Sky/Weather........Partly cloudy then becoming sunny. * Max Temperature.... * Valleys..........36-46. * Mid Slope........32-42. * Min Humidity....... * Valleys..........29-39%. * Mid Slope........28-38%. * 20-Foot Winds...... * Valleys/Slope....North winds 9 to 14 mph. * Ridge Top........Northeast winds 10 to 15 mph with gusts to 30 mph. * Haines Index.......2. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......200-500 ft agl then 3400-3900 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Poor increasing to fair in the afternoon. .Extended... .THURSDAY NIGHT...Clear. Lows 12-22. North winds 9 to 14 mph until early morning becoming downslope 2 to 5 mph. .FRIDAY...Clear. Highs 38-48. Lows 11-21. Slope winds. .SATURDAY...Clear. Highs 44-54. Lows 11-21. Slope winds. .SUNDAY...Partly cloudy. Highs 44-54. Lows 12-22. Slope winds. .MONDAY...Partly cloudy. Highs 47-57. Lows 14-24. .TUESDAY...Partly cloudy. Highs 42-52. $$ CAZ270-278-NVZ458-260030- Surprise Valley California-Eastern Lassen County- Northern Washoe County- 403 AM PST Wed Nov 25 2020 .TODAY... * Sky/Weather........Mostly cloudy then becoming partly cloudy. Chance of snow and a slight chance of rain in the morning. * Max Temperature.... * Valleys..........36-46. * Mid Slope........31-41. * 24 hr trend......5 degrees cooler. * Min Humidity....... * Valleys..........33-43%. * Mid Slope........40-50%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....Northwest winds 9 to 17 mph. Gusts to 25 mph. * Ridge Top........Northwest winds 15 to 25 mph with gusts to 40 mph. * Haines Index.......3. * LAL................1. * Chc Wetting Rain...25%. * Mixing Height......600-1000 ft agl increasing to 3200-4000 ft agl in the afternoon. * Transport Winds....West 10 to 20 mph. * Ventilation........Marginal increasing to very good in the afternoon. .TONIGHT... * Sky/Weather........Partly cloudy then becoming clear. * Min Temperature.... * Valleys..........12-22. * Mid Slope........15-25. * 24 hr trend......7 degrees cooler. * Max Humidity....... * Valleys..........82-92%. * Mid Slope........78-88%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....North winds 9 to 14 mph. Gusts to 25 mph in the evening. * Ridge Top........North winds 10 to 15 mph with gusts to 30 mph. * Haines Index.......2-3. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......800-1300 ft agl. * Transport Winds....Northwest 10 to 15 mph in the evening becoming light. * Ventilation........Marginal. .THANKSGIVING DAY... * Sky/Weather........Partly cloudy then becoming sunny. * Max Temperature.... * Valleys..........35-44. * Mid Slope........31-39. * Min Humidity....... * Valleys..........35-45%. * Mid Slope........42-52%. * 20-Foot Winds...... * Valleys/Slope....Northeast winds 9 to 14 mph. Gusts to 20 mph in the late morning and early afternoon. * Ridge Top........Northeast winds 10 to 15 mph with gusts to 30 mph. * Haines Index.......3. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......600 ft agl increasing to 2000-3000 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Fair. .Extended... .THURSDAY NIGHT...Clear. Lows 10-20. Northeast winds 7 to 12 mph in the evening becoming downslope 2 to 5 mph. .FRIDAY...Clear. Highs 38-48. Lows 10-20. Slope winds. .SATURDAY...Clear. Highs 42-50. Lows 12-22. Slope winds. .SUNDAY...Partly cloudy. Highs 41-51. Lows 13-23. Slope winds. .MONDAY...Partly cloudy. Highs 42-52. Lows 13-23. .TUESDAY...Partly cloudy. Highs 40-50. $$ CAZ271-260030- Western Lassen, Eastern Plumas, Eastern Sierra, and Eastern Nevada Counties- 403 AM PST Wed Nov 25 2020 .TODAY... * Sky/Weather........Mostly cloudy then becoming partly cloudy. Slight chance of snow in the morning. * Max Temperature.... * Valleys..........35-45. * Mid Slope........33-41. * 24 hr trend......6 degrees cooler. * Min Humidity....... * Valleys..........41-51%. * Mid Slope........42-52%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....Northwest winds 9 to 14 mph with gusts to 25 mph. * Ridge Top........Southwest winds 20 to 30 mph with gusts to 45 mph shifting to the west 10 to 20 mph with gusts to 35 mph in the afternoon. * Haines Index.......3. * LAL................1. * Chc Wetting Rain...20%. * Mixing Height......700 ft agl increasing to 3300-4100 ft agl in the afternoon. * Transport Winds....West 10 to 15 mph. * Ventilation........Poor increasing to good in the afternoon. .TONIGHT... * Sky/Weather........Clear. * Min Temperature.... * Valleys..........6-16. * Mid Slope........16-26. * 24 hr trend......8 degrees cooler. * Max Humidity....... * Valleys..........86-96%. * Mid Slope........82-92%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....Downslope 2 to 5 mph. * Ridge Top........Northeast winds 10 to 15 mph. Gusts to 20 mph in the evening then 25 mph after midnight. * Haines Index.......2-3. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......600 ft agl. * Transport Winds....Light winds. * Ventilation........Poor. .THANKSGIVING DAY... * Sky/Weather........Sunny. * Max Temperature.... * Valleys..........35-43. * Mid Slope........32-40. * Min Humidity....... * Valleys..........39-49%. * Mid Slope........39-49%. * 20-Foot Winds...... * Valleys/Slope....East winds 9 to 14 mph. * Ridge Top........East winds 15 to 25 mph with gusts to 45 mph. * Haines Index.......4. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......200-500 ft agl then 2600 ft agl in the afternoon. * Transport Winds....Light winds becoming east 10 to 15 mph in the afternoon. * Ventilation........Poor increasing to fair in the afternoon. .Extended... .THURSDAY NIGHT...Clear. Lows 5-15. East winds 9 to 14 mph. .FRIDAY...Clear. Highs 39-49. Lows 5-15. Slope winds. .SATURDAY...Clear. Highs 44-52. Lows 7-17. Slope winds. .SUNDAY...Partly cloudy. Highs 42-52. Lows 7-17. Slope winds. .MONDAY...Partly cloudy. Highs 43-53. Lows 8-18. .TUESDAY...Partly cloudy. Highs 41-49. $$ CAZ274-260030- Southern Mono County- 403 AM PST Wed Nov 25 2020 .TODAY... * Sky/Weather........Partly cloudy. * Max Temperature.... * Valleys..........44-54. * Mid Slope........39-49. * 24 hr trend......Little change. * Min Humidity....... * Valleys..........13-23%. * Mid Slope........16-26%. * 24 hr trend......Little change. * 20-Foot Winds...... * Valleys/Slope....Southwest winds 9 to 15 mph with gusts to 35 mph increasing to west 13 to 20 mph with gusts to 35 mph late in the afternoon. * Ridge Top........West winds 20 to 35 mph with gusts to 55 mph. * Haines Index.......4. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......200-500 ft agl then 2400-3400 ft agl in the afternoon. * Transport Winds....Southwest 10 to 20 mph. * Ventilation........Poor increasing to good in the afternoon. .TONIGHT... * Sky/Weather........Clear then becoming partly cloudy. * Min Temperature.... * Valleys..........6-16. * Mid Slope........11-21. * 24 hr trend......8 degrees cooler. * Max Humidity....... * Valleys..........74-84%. * Mid Slope........63-73%. * 24 hr trend......6% wetter. * 20-Foot Winds...... * Valleys/Slope....North winds 9 to 15 mph with gusts to 30 mph. * Ridge Top........West winds 20 to 30 mph with gusts to 50 mph shifting to the northwest 10 to 20 mph with gusts to 30 mph after midnight. * Haines Index.......4. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......700-1200 ft agl. * Transport Winds....Light winds. * Ventilation........Poor. .THANKSGIVING DAY... * Sky/Weather........Partly cloudy then becoming sunny. * Max Temperature.... * Valleys..........29-39. * Mid Slope........24-34. * Min Humidity....... * Valleys..........16-26%. * Mid Slope........21-31%. * 20-Foot Winds...... * Valleys/Slope....Northeast winds 9 to 14 mph. Gusts to 30 mph until late afternoon. * Ridge Top........Northeast winds 20 to 30 mph with gusts to 45 mph. * Haines Index.......2-3. * LAL................1. * Chc Wetting Rain...0%. * Mixing Height......800 ft agl increasing to 1900-2900 ft agl in the afternoon. * Transport Winds....Light winds. * Ventilation........Fair. .Extended... .THURSDAY NIGHT...Clear. Lows 5-15. North winds 9 to 15 mph shifting to the northwest 7 to 12 mph after midnight. .FRIDAY...Clear. Highs 39-49. Lows 5-15. Slope winds. .SATURDAY...Clear. Highs 46-56. Lows 9-19. Slope winds. .SUNDAY...Partly cloudy. Highs 45-55. Lows 11-21. Slope winds. .MONDAY...Partly cloudy. Highs 46-56. Lows 12-22. .TUESDAY...Sunny. Highs 43-53. $$ .8 to 14 day outlook for (Wed Dec 2 through Tue Dec 8) Above normal temperatures and Below normal precipitation. = $$ http://weather.gov/reno