429 FNUS55 KCYS 091009 FWFCYS Fire Weather Planning Forecast for Southeast Wyoming/Western Nebraska National Weather Service Cheyenne WY 309 AM MST Tue Mar 9 2021 WINTER STORM WARNING IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST WEDNESDAY WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST WEDNESDAY HIGH WIND WARNING IN EFFECT UNTIL 9 AM MST THIS MORNING .DISCUSSION... Before the frontal passage Tuesday evening, fire weather is still of some concern for portions of southeast Wyoming and the Nebraska panhandle as the humidities will be in the teens and winds will be between 10 and 20 MPH. As of right now, nowhere will reach critical conditions, but it will get close Tuesday during the day! Once the front passes through Tuesday evening, humidities increase and most of southeast Wyoming and the Nebraska panhandle will receive some amount of precipitation. After that, another low pressure system is expected to pass through Friday night into Sunday bringing more precipitation and higher humidities. WYZ301-092315- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- 309 AM MST Tue Mar 9 2021 ...WINTER STORM WARNING IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST WEDNESDAY... .TODAY... Sky/weather.........Mostly sunny until 1200, then partly cloudy until 1500, then mostly cloudy. Chance of rain after 1700. Max temperature.....50-55. 24 hr trend......15 degrees cooler. Min humidity........20-26 percent. 24 hr trend......8 percent wetter. 20-foot winds.......Northwest 10 to 15 mph. Gusts up to 35 mph decreasing to 20 mph in the afternoon. LAL.................1. Chc of wetting rain.Zero percent. Transport winds.....West 15 to 20 mph. Mixing height.......1100-1800 ft AGL increasing to 5100-7100 ft AGL in the afternoon. Smoke dispersal.....Poor (25900 knot-ft) increasing to good (80600 knot-ft) in the afternoon. Haines Index........2 or very low potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Mostly cloudy. Chance of snow and rain until 2300, then snow. Patchy fog after 0200. Snow accumulation of 2 to 5 inches. Min temperature.....26-31. 24 hr trend......9 degrees cooler. Max humidity........88-94 percent. 24 hr trend......35 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast around 10 mph and gusty. LAL.................1. Chc of wetting rain.55 percent. Transport winds.....East 20 to 25 mph. Mixing height.......1900-2900 ft AGL. Smoke dispersal.....Poor to fair (27800-53200 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Cloudy. Patchy fog until 0900. Snow until 1100, then snow likely until 1700, then chance of flurries. Snow accumulation of 2 to 3 inches. Max temperature.....31-36. 24 hr trend......20 degrees cooler. Min humidity........70-76 percent. 24 hr trend......48 percent wetter. 20-foot winds.......Northeast around 10 mph. LAL.................1. Chc of wetting rain.55 percent. Transport winds.....East around 15 mph shifting to the northwest in the afternoon. Mixing height.......2100-3000 ft AGL increasing to 4400-5500 ft AGL in the afternoon. Smoke dispersal.....Poor to fair (36900-43000 knot-ft). Haines Index........2 or very low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Chance of flurries and sprinkles. Lows around 20. Highs in the mid 30s. West winds around 5 mph. .FRIDAY...Partly cloudy with chance of flurries. Lows around 20. Highs in the mid 30s. North winds around 5 mph. .SATURDAY...Partly cloudy with chance of flurries and sprinkles. Lows in the lower 20s. Highs in the upper 30s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy with chance of sprinkles and flurries. Lows in the mid 20s. Highs in the mid 30s. .MONDAY...Partly cloudy with chance of flurries. Lows in the mid 20s. Highs in the lower 30s. $$ WYZ302-092315- North Laramie Range/Medicine Bow NF- 309 AM MST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST WEDNESDAY... .TODAY... Sky/weather.........Mostly sunny until 1200, then partly cloudy until 1500, then mostly cloudy. Snow and rain likely after 1700. Little or no snow accumulation. Max temperature.....38-46. 24 hr trend......11 degrees cooler. Min humidity........36-42 percent. 24 hr trend......20 percent wetter. 20-foot winds.......West around 20 mph with gusts to around 45 mph decreasing to around 10 mph with higher gusts in the afternoon. LAL.................1. Chc of wetting rain.Zero percent. Transport winds.....West around 35 mph decreasing to around 20 mph in the afternoon. Mixing height.......800-1300 ft AGL increasing to 4700-6700 ft AGL in the afternoon. Smoke dispersal.....Poor (33500 knot-ft) increasing to very good (107600 knot-ft) in the afternoon. Haines Index........2 or very low potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Cloudy. Snow likely until 2300, then snow until 0500Snow likely after 0500. Patchy fog after 2300. Areas of dense freezing fog after 2400 until 0100. Snow accumulation of 3 to 6 inches. Min temperature.....23-28. 24 hr trend......13 degrees cooler. Max humidity........88-94 percent. 24 hr trend......44 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast around 10 mph shifting to the east after midnight. Gusts up to 20 mph. LAL.................1. Chc of wetting rain.65 percent. Transport winds.....East around 15 mph increasing to southeast around 25 mph after midnight. Mixing height.......1400-2600 ft AGL. Smoke dispersal.....Poor (12500-37900 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly cloudy until 1500, then partly cloudy. Patchy fog until 0800. Snow likely until 1100, then chance of snow until 1700, then chance of flurries. Snow accumulation of 1 to 3 inches. Max temperature.....28-33. 24 hr trend......9 degrees cooler. Min humidity........65-71 percent. 24 hr trend......27 percent wetter. 20-foot winds.......South around 10 mph shifting to the northwest in the afternoon. Gusts up to 25 mph. LAL.................1. Chc of wetting rain.40 percent. Transport winds.....West 25 to 30 mph. Mixing height.......1800-3000 ft AGL increasing to 4500-5600 ft AGL in the afternoon. Smoke dispersal.....Fair (52900 knot-ft) increasing to very good (114500 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy with chance of flurries. Lows around 16. Highs around 30. West winds around 5 mph. .FRIDAY...Mostly cloudy with chance of flurries. Lows around 20. Highs in the upper 20s. East winds around 10 mph. .SATURDAY...Mostly cloudy with chance of flurries. Lows in the lower 20s. Highs in the lower 30s. East winds around 10 mph. .SUNDAY...Partly cloudy. Chance of flurries. Lows in the lower 20s. Highs in the lower 30s. .MONDAY...Partly cloudy with chance of flurries. Lows in the mid 20s. Highs around 30. $$ WYZ303-092315- Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains- 309 AM MST Tue Mar 9 2021 ...HIGH WIND WARNING IN EFFECT UNTIL 9 AM MST THIS MORNING... ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST WEDNESDAY... .TODAY... Sky/weather.........Mostly sunny until 1200, then partly cloudy until 1500, then mostly cloudy. Chance of snow after 1700. Max temperature.....41-46. 24 hr trend......12 degrees cooler. Min humidity........34-40 percent. 24 hr trend......17 percent wetter. 20-foot winds.......West 10 to 15 mph. Gusts up to 45 mph decreasing to 25 mph in the afternoon. LAL.................1. Chc of wetting rain.Zero percent. Transport winds.....West around 30 mph becoming southwest around 20 mph in the afternoon. Mixing height.......1200-1900 ft AGL increasing to 4800-6400 ft AGL in the afternoon. Smoke dispersal.....Poor (38800 knot-ft) increasing to very good (102100 knot-ft) in the afternoon. Haines Index........2 or very low potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Mostly cloudy. Chance of snow until 2300, then snow likely until 0500. Chance of snow after 0500. Patchy fog after 0200 until 0500. Snow accumulation of 1 to 4 inches. Min temperature.....24-29. 24 hr trend......8 degrees cooler. Max humidity........83-89 percent. 24 hr trend......27 percent wetter. Humidity recovery...Excellent. 20-foot winds.......East around 5 mph shifting to the southwest after midnight. Gusts up to 20 mph. LAL.................1. Chc of wetting rain.50 percent. Transport winds.....Southeast around 15 mph shifting to the southwest after midnight. Mixing height.......800-2100 ft AGL. Smoke dispersal.....Poor (11400-25300 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly cloudy until 1500, then partly cloudy. Chance of snow until 1700Chance of flurries after 1700. Patchy blowing snow after 0900 until 1500. Max temperature.....30-35. 24 hr trend......12 degrees cooler. Min humidity........53-59 percent. 24 hr trend......15 percent wetter. 20-foot winds.......West around 15 mph with higher gusts. LAL.................1. Chc of wetting rain.25 percent. Transport winds.....West around 30 mph. Mixing height.......2900-4300 ft AGL increasing to 5300-6800 ft AGL in the afternoon. Smoke dispersal.....Good (87600 knot-ft) increasing to excellent (151100 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy with chance of flurries. Lows around 16. Highs in the lower 30s. Southwest winds around 5 mph. .FRIDAY...Mostly cloudy with chance of flurries. Lows around 20. Highs in the lower 30s. East winds around 10 mph. .SATURDAY...Partly cloudy. Chance of flurries. Lows in the lower 20s. Highs in the lower 30s. East winds around 10 mph. .SUNDAY...Partly cloudy with chance of flurries. Lows in the lower 20s. Highs in the mid 30s. .MONDAY...Partly cloudy with chance of flurries. Lows in the lower 20s. Highs in the lower 30s. $$ WYZ304-092315- Southwest Carbon County- 309 AM MST Tue Mar 9 2021 .TODAY... Sky/weather.........Partly cloudy. Chance of snow and rain after 1700. Max temperature.....42-47. 24 hr trend......11 degrees cooler. Min humidity........33-39 percent. 24 hr trend......5 percent wetter. 20-foot winds.......Southwest around 5 mph and gusty. LAL.................1. Chc of wetting rain.5 percent. Transport winds.....Southwest around 15 mph. Mixing height.......1100-2100 ft AGL increasing to 4400-5800 ft AGL in the afternoon. Smoke dispersal.....Poor to good (20300-65400 knot-ft). Haines Index........2 or very low potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Mostly cloudy. Chance of rain until 2400. Snow likely. Patchy fog after 0300 until 0500. Snow accumulation of 1 to 2 inches. Min temperature.....23-28. 24 hr trend......5 degrees cooler. Max humidity........86-92 percent. 24 hr trend......13 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Southeast around 5 mph shifting to the southwest after midnight. Gusts up to 15 mph. LAL.................1. Chc of wetting rain.45 percent. Transport winds.....South around 15 mph shifting to the southwest after midnight. Mixing height.......500-2000 ft AGL. Smoke dispersal.....Poor (11300-25800 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly cloudy until 1500, then partly cloudy. Chance of snow until 1700, then chance of flurries. Max temperature.....33-38. 24 hr trend......9 degrees cooler. Min humidity........39-45 percent. 24 hr trend......12 percent wetter. 20-foot winds.......West 10 to 15 mph with higher gusts. LAL.................1. Chc of wetting rain.25 percent. Transport winds.....Southwest around 30 mph. Mixing height.......3200-3800 ft AGL increasing to 8100-9800 ft AGL in the afternoon. Smoke dispersal.....Good (89700 knot-ft) increasing to excellent (242500 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Chance of flurries. Lows around 16. Highs in the mid 30s. Southeast winds around 5 mph. .FRIDAY...Mostly cloudy. Chance of flurries. Lows around 20. Highs in the mid 30s. Northeast winds around 10 mph. .SATURDAY...Partly cloudy. Chance of flurries. Lows in the lower 20s. Highs in the mid 30s. Northeast winds around 10 mph. .SUNDAY...Partly cloudy with chance of flurries. Lows in the lower 20s. Highs in the upper 30s. .MONDAY...Partly cloudy with chance of flurries. Lows in the lower 20s. Highs in the lower 30s. $$ WYZ305-092315- Sierra Madre Range/Medicine Bow NF- 309 AM MST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST WEDNESDAY... .TODAY... Sky/weather.........Mostly sunny until 1200, then partly cloudy. Snow likely after 1700. Little or no snow accumulation. Max temperature.....38-44. 24 hr trend......9 degrees cooler. Min humidity........36-42 percent. 24 hr trend......9 percent wetter. 20-foot winds.......Southwest around 10 mph. Gusts up to 35 mph decreasing to 20 mph in the afternoon. LAL.................1. Chc of wetting rain.Zero percent. Transport winds.....Southwest 25 to 30 mph. Mixing height.......1100-1800 ft AGL increasing to 4200-5800 ft AGL in the afternoon. Smoke dispersal.....Poor (35700 knot-ft) increasing to very good (123600 knot-ft) in the afternoon. Haines Index........2 or very low potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Mostly cloudy. Snow likely. Patchy fog after 0100 until 0400. Patchy blowing snow after 0300 until 0500. Snow accumulation of 1 to 4 inches. Min temperature.....21-26. 24 hr trend......4 degrees cooler. Max humidity........80-86 percent. 24 hr trend......13 percent wetter. Humidity recovery...Good. 20-foot winds.......Southwest 5 to 10 mph. Gusts up to 15 mph increasing to 25 mph after midnight. LAL.................1. Chc of wetting rain.45 percent. Transport winds.....South around 20 mph increasing to southwest around 35 mph after midnight. Mixing height.......1400-3400 ft AGL. Smoke dispersal.....Poor to good (34500-83200 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly cloudy until 1500, then partly cloudy. Snow likely until 1100Chance of snow after 1100 until 1700, then chance of flurries. Patchy blowing snow after 0700 until 1300. Snow accumulation of 1 to 3 inches. Max temperature.....25-33. 24 hr trend......8 degrees cooler. Min humidity........52-58 percent. 24 hr trend......13 percent wetter. 20-foot winds.......Southwest around 15 mph with higher gusts. LAL.................1. Chc of wetting rain.45 percent. Transport winds.....West 35 to 40 mph. Mixing height.......4200-5600 ft AGL increasing to 6500-8400 ft AGL in the afternoon. Smoke dispersal.....Excellent (171100 knot-ft) increasing to excellent (234700 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Snow likely. Lows around 15. Highs around 30. Southwest winds around 5 mph. .FRIDAY...Mostly cloudy with chance of flurries. Lows around 18. Highs around 30. East winds around 10 mph. .SATURDAY...Partly cloudy. Chance of flurries. Lows around 20. Highs in the lower 30s. East winds around 10 mph. .SUNDAY...Partly cloudy with chance of flurries. Lows around 19. Highs in the lower 30s. .MONDAY...Partly cloudy with chance of flurries. Lows in the lower 20s. Highs in the upper 20s. $$ WYZ306-092315- Upper North Platte River Basin- 309 AM MST Tue Mar 9 2021 .TODAY... Sky/weather.........Mostly sunny until 1200, then partly cloudy. Chance of snow and rain after 1700. Max temperature.....42-47. 24 hr trend......13 degrees cooler. Min humidity........34-40 percent. 24 hr trend......17 percent wetter. 20-foot winds.......West around 10 mph. Gusts up to 30 mph decreasing to 20 mph in the afternoon. LAL.................1. Chc of wetting rain.Zero percent. Transport winds.....Southwest 20 to 25 mph. Mixing height.......1300-1800 ft AGL increasing to 5900-6600 ft AGL in the afternoon. Smoke dispersal.....Poor (29200 knot-ft) increasing to very good (128000 knot-ft) in the afternoon. Haines Index........2 or very low potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Mostly cloudy. Chance of snow until 2300, then snow likely until 0500, then chance of snow. Snow accumulation around 1 inch. Min temperature.....24-29. 24 hr trend......6 degrees cooler. Max humidity........77-83 percent. 24 hr trend......20 percent wetter. Humidity recovery...Good. 20-foot winds.......South 5 to 10 mph. Gusts up to 20 mph after midnight. LAL.................1. Chc of wetting rain.30 percent. Transport winds.....South around 15 mph increasing to southwest around 30 mph after midnight. Mixing height.......1200-2800 ft AGL. Smoke dispersal.....Poor to fair (26000-47800 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly cloudy until 1500, then partly cloudy. Chance of snow until 1700Chance of flurries after 1700. Patchy blowing snow after 1000 until 1300. Max temperature.....30-35. 24 hr trend......12 degrees cooler. Min humidity........46-52 percent. 24 hr trend......12 percent wetter. 20-foot winds.......West around 15 mph with higher gusts. LAL.................1. Chc of wetting rain.20 percent. Transport winds.....West around 35 mph. Mixing height.......4800-6000 ft AGL increasing to 7300-8200 ft AGL in the afternoon. Smoke dispersal.....Excellent (171400 knot-ft) increasing to excellent (243300 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Chance of flurries. Lows around 16. Highs in the lower 30s. Southwest winds around 5 mph. .FRIDAY...Mostly cloudy with chance of flurries. Lows around 19. Highs in the lower 30s. East winds around 5 mph. .SATURDAY...Partly cloudy. Chance of flurries. Lows around 20. Highs in the lower 30s. East winds around 10 mph. .SUNDAY...Partly cloudy with chance of flurries. Lows around 19. Highs in the lower 30s. .MONDAY...Partly cloudy with chance of flurries. Lows in the lower 20s. Highs around 30. $$ WYZ307-092315- Snowy Range/Medicine Bow NF- 309 AM MST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST WEDNESDAY... .TODAY... Sky/weather.........Mostly sunny until 1200, then partly cloudy. Chance of snow after 1700. Max temperature.....36-44. 24 hr trend......9 degrees cooler. Min humidity........35-41 percent. 24 hr trend......17 percent wetter. 20-foot winds.......Southwest 10 to 15 mph. Gusts up to 45 mph decreasing to 30 mph in the afternoon. LAL.................1. Chc of wetting rain.Zero percent. Transport winds.....Southwest around 40 mph decreasing to around 30 mph in the afternoon. Mixing height.......1400-2000 ft AGL increasing to 4900-6600 ft AGL in the afternoon. Smoke dispersal.....Good (62200 knot-ft) increasing to excellent (150200 knot-ft) in the afternoon. Haines Index........2 or very low potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Mostly cloudy. Chance of snow until 2300, then snow likely. Patchy blowing snow after 0200. Snow accumulation of 1 to 4 inches. Min temperature.....19-25. 24 hr trend......6 degrees cooler. Max humidity........75-81 percent. 24 hr trend......20 percent wetter. Humidity recovery...Good. 20-foot winds.......Southwest 5 to 10 mph. Gusts up to 15 mph increasing to 30 mph after midnight. LAL.................1. Chc of wetting rain.40 percent. Transport winds.....South around 20 mph increasing to southwest around 40 mph after midnight. Mixing height.......2200-3800 ft AGL. Smoke dispersal.....Fair to good (53000-89900 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly cloudy until 1500, then partly cloudy. Patchy blowing snow until 1700. Snow likely until 1100Chance of snow after 1100 until 1700, then chance of flurries. Snow accumulation up to 2 inches. Max temperature.....24-30. 24 hr trend......15 degrees cooler. Min humidity........52-58 percent. 24 hr trend......19 percent wetter. 20-foot winds.......West around 15 mph with higher gusts. LAL.................1. Chc of wetting rain.35 percent. Transport winds.....West 40 to 45 mph. Mixing height.......4600-5600 ft AGL increasing to 5900-7800 ft AGL in the afternoon. Smoke dispersal.....Excellent (192800 knot-ft) increasing to excellent (246500 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Snow likely. Lows around 14. Highs in the mid 20s. Southwest winds around 5 mph. .FRIDAY...Mostly cloudy with chance of snow. Lows around 17. Highs in the mid 20s. East winds around 10 mph. .SATURDAY...Mostly cloudy with chance of flurries. Lows around 18. Highs in the upper 20s. East winds around 10 mph. .SUNDAY...Mostly cloudy with chance of flurries. Lows around 16. Highs in the upper 20s. .MONDAY...Partly cloudy with chance of flurries. Lows around 20. Highs in the mid 20s. $$ WYZ308-092315- Laramie Valley/Shirley Basin- 309 AM MST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST WEDNESDAY... .TODAY... Sky/weather.........Mostly sunny until 1200, then partly cloudy until 1500, then mostly cloudy. Chance of snow and rain after 1700. Max temperature.....41-47. 24 hr trend......17 degrees cooler. Min humidity........36-42 percent. 24 hr trend......26 percent wetter. 20-foot winds.......West 10 to 15 mph. Gusts up to 40 mph decreasing to 25 mph in the afternoon. LAL.................1. Chc of wetting rain.Zero percent. Transport winds.....West around 30 mph becoming southwest around 20 mph in the afternoon. Mixing height.......1000-2100 ft AGL increasing to 5500-7500 ft AGL in the afternoon. Smoke dispersal.....Fair (42000 knot-ft) increasing to very good (122100 knot-ft) in the afternoon. Haines Index........2 or very low potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Mostly cloudy. Chance of rain until 2400. Snow likely. Patchy fog after 2400 until 0500. Snow accumulation of 1 to 4 inches. Min temperature.....25-30. 24 hr trend......7 degrees cooler. Max humidity........83-89 percent. 24 hr trend......34 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Southeast around 10 mph and gusty. LAL.................1. Chc of wetting rain.45 percent. Transport winds.....Southeast around 15 mph increasing to south around 25 mph after midnight. Mixing height.......900-2500 ft AGL. Smoke dispersal.....Poor (12500-32200 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly cloudy until 1500, then partly cloudy. Chance of snow until 1700Chance of flurries after 1700. Patchy blowing snow after 1100 until 1600. Max temperature.....30-35. 24 hr trend......8 degrees cooler. Min humidity........52-58 percent. 24 hr trend......22 percent wetter. 20-foot winds.......West 10 to 15 mph with higher gusts. LAL.................1. Chc of wetting rain.25 percent. Transport winds.....West 30 to 35 mph. Mixing height.......3100-5100 ft AGL increasing to 5800-7800 ft AGL in the afternoon. Smoke dispersal.....Very good (127100 knot-ft) increasing to excellent (206600 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Chance of flurries. Lows around 14. Highs in the lower 30s. Southwest winds around 5 mph. .FRIDAY...Mostly cloudy with chance of flurries. Lows around 19. Highs around 30. East winds around 10 mph. .SATURDAY...Mostly cloudy with chance of flurries. Lows around 20. Highs in the upper 20s. East winds around 10 mph. .SUNDAY...Mostly cloudy. Chance of flurries. Lows around 18. Highs in the lower 30s. .MONDAY...Partly cloudy with chance of flurries. Lows in the lower 20s. Highs around 30. $$ WYZ309-092315- South Laramie Range/Medicine Bow NF- 309 AM MST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST WEDNESDAY... .TODAY... Sky/weather.........Partly cloudy until 1500, then mostly cloudy. Chance of rain and snow after 1700. Max temperature.....46-54. 24 hr trend......8 degrees cooler. Min humidity........25-31 percent. 24 hr trend......13 percent wetter. 20-foot winds.......West 10 to 15 mph. Gusts up to 40 mph decreasing to 25 mph in the afternoon. LAL.................1. Chc of wetting rain.Zero percent. Transport winds.....West around 35 mph becoming southwest around 20 mph in the afternoon. Mixing height.......1200-1900 ft AGL increasing to 6500-8200 ft AGL in the afternoon. Smoke dispersal.....Fair (47100 knot-ft) increasing to very good (130700 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Mostly cloudy. Chance of snow and rain until 2300, then snow likely until 0500. Chance of snow after 0500. Patchy fog after 0200 until 0500. Snow accumulation of 1 to 3 inches. Min temperature.....26-31. 24 hr trend......5 degrees cooler. Max humidity........87-93 percent. 24 hr trend......40 percent wetter. Humidity recovery...Excellent. 20-foot winds.......East around 10 mph and gusty. LAL.................1. Chc of wetting rain.40 percent. Transport winds.....Southeast 15 to 20 mph. Mixing height.......1300-2500 ft AGL. Smoke dispersal.....Poor (15900-27300 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly cloudy until 1500, then partly cloudy. Chance of snow until 1700. Chance of flurries after 1700. Patchy blowing snow after 1000 until 1700. Max temperature.....32-38. 24 hr trend......14 degrees cooler. Min humidity........46-52 percent. 24 hr trend......26 percent wetter. 20-foot winds.......Southwest around 10 mph shifting to the west in the afternoon. Gusts up to 30 mph. LAL.................1. Chc of wetting rain.25 percent. Transport winds.....West around 35 mph. Mixing height.......2700-4600 ft AGL increasing to 6900-8900 ft AGL in the afternoon. Smoke dispersal.....Very good (103100 knot-ft) increasing to excellent (257300 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Chance of flurries. Lows around 19. Highs in the lower 30s. Southwest winds around 5 mph. .FRIDAY...Mostly cloudy with chance of snow. Lows in the lower 20s. Highs in the upper 20s. East winds around 10 mph. .SATURDAY...Mostly cloudy with chance of snow. Lows in the lower 20s. Highs in the upper 20s. East winds around 10 mph. .SUNDAY...Mostly cloudy with chance of flurries. Lows in the lower 20s. Highs around 30. .MONDAY...Partly cloudy with chance of flurries. Lows in the mid 20s. Highs in the lower 30s. $$ WYZ310-092315- Platte/Goshen/Central and Eastern Laramie- 309 AM MST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST WEDNESDAY... .TODAY... Sky/weather.........Partly cloudy. Chance of rain after 1700. Max temperature.....53-59. 24 hr trend......13 degrees cooler. Min humidity........20-26 percent. 24 hr trend......14 percent wetter. 20-foot winds.......Northwest around 10 mph with higher gusts. LAL.................1. Chc of wetting rain.Zero percent. Transport winds.....West 15 to 20 mph. Mixing height.......600-1100 ft AGL increasing to 6300-7900 ft AGL in the afternoon. Smoke dispersal.....Poor (13200 knot-ft) increasing to very good (104500 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Mostly cloudy. Snow with rain likely. Patchy fog after 0300 until 0500, then areas of fog. Snow accumulation of 1 to 2 inches. Min temperature.....28-33. 24 hr trend......8 degrees cooler. Max humidity........88-94 percent. 24 hr trend......44 percent wetter. Humidity recovery...Excellent. 20-foot winds.......East around 10 mph and gusty. LAL.................1. Chc of wetting rain.35 percent. Transport winds.....East around 15 mph. Mixing height.......1700-2600 ft AGL. Smoke dispersal.....Poor (20600-35500 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly cloudy. Patchy fog until 0900. Chance of snow until 1700, then chance of flurries and sprinkles. Max temperature.....35-41. 24 hr trend......14 degrees cooler. Min humidity........55-61 percent. 24 hr trend......49 percent wetter. 20-foot winds.......Southeast around 10 mph shifting to the north with higher gusts in the afternoon. LAL.................1. Chc of wetting rain.30 percent. Transport winds.....South around 15 mph increasing to northwest around 25 mph in the afternoon. Mixing height.......1000-2100 ft AGL increasing to 6000-8000 ft AGL in the afternoon. Smoke dispersal.....Poor (17600 knot-ft) increasing to excellent (156300 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy with chance of flurries. Lows in the lower 20s. Highs in the upper 30s. Northwest winds around 5 mph. .FRIDAY...Mostly cloudy with chance of snow. Lows in the mid 20s. Highs in the mid 30s. Northeast winds around 5 mph. .SATURDAY...Mostly cloudy with chance of snow. Lows in the mid 20s. Highs in the mid 30s. East winds around 10 mph. .SUNDAY...Mostly cloudy. Chance of flurries. Lows in the lower 20s. Highs in the mid 30s. .MONDAY...Partly cloudy with chance of flurries. Lows in the mid 20s. Highs in the mid 30s. $$ NEZ311-092315- Pine Ridge/Nebraska National Forest/Oglala National Grasslands- 309 AM MST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST WEDNESDAY... .TODAY... Sky/weather.........Partly cloudy until 1500, then mostly cloudy. Chance of rain after 1700. Max temperature.....55-61. 24 hr trend......14 degrees cooler. Min humidity........21-27 percent. 24 hr trend......5 percent wetter. 20-foot winds.......West around 15 mph shifting to the northwest in the afternoon. Gusts up to 30 mph. LAL.................1. Chc of wetting rain.Zero percent. Transport winds.....West 20 to 25 mph. Mixing height.......500-1000 ft AGL increasing to 4300-5600 ft AGL in the afternoon. Smoke dispersal.....Poor (14800 knot-ft) increasing to good (90300 knot-ft) in the afternoon. Haines Index........4 or low potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Mostly cloudy. Snow with rain likely. Patchy fog after 0300 until 0500, then areas of fog. Snow accumulation of 1 to 2 inches. Min temperature.....27-32. 24 hr trend......13 degrees cooler. Max humidity........90-96 percent. 24 hr trend......41 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast around 10 mph and gusty. LAL.................1. Chc of wetting rain.40 percent. Transport winds.....Northeast 20 to 25 mph. Mixing height.......1900-2700 ft AGL. Smoke dispersal.....Poor to fair (33200-53600 knot-ft). Haines Index........2 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Cloudy. Areas of fog and freezing fog until 0800Patchy fog after 0800 until 0900. Snow until 1200, then chance of flurries and rain. Snow accumulation of 2 to 3 inches. Max temperature.....32-37. 24 hr trend......22 degrees cooler. Min humidity........73-79 percent. 24 hr trend......48 percent wetter. 20-foot winds.......Northeast around 10 mph. LAL.................1. Chc of wetting rain.55 percent. Transport winds.....East around 15 mph shifting to the north in the afternoon. Mixing height.......1700-3700 ft AGL. Smoke dispersal.....Poor (24400-26100 knot-ft). Haines Index........2 or very low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy with chance of sprinkles and flurries. Lows in the lower 20s. Highs in the upper 30s. Northwest winds around 5 mph. .FRIDAY...Partly cloudy. Chance of flurries. Lows in the mid 20s. Highs in the upper 30s. North winds around 5 mph. .SATURDAY...Partly cloudy with chance of flurries and slight chance of rain. Lows in the mid 20s. Highs in the lower 40s. Winds generally less than 10 mph. .SUNDAY...Partly cloudy with chance of snow. Lows in the mid 20s. Highs in the upper 30s. .MONDAY...Partly cloudy with chance of flurries and sprinkles. Lows in the lower 20s. Highs in the mid 30s. $$ NEZ312-092315- Box Butte/South Sioux- 309 AM MST Tue Mar 9 2021 .TODAY... Sky/weather.........Partly cloudy. Chance of rain after 1700. Max temperature.....56-62. 24 hr trend......8 degrees cooler. Min humidity........18-24 percent. 24 hr trend......1 percent wetter. 20-foot winds.......West around 10 mph shifting to the northwest in the afternoon. Gusts up to 30 mph. LAL.................1. Chc of wetting rain.Zero percent. Transport winds.....West 20 to 25 mph. Mixing height.......700 ft AGL increasing to 6200-6900 ft AGL in the afternoon. Smoke dispersal.....Poor (13000 knot-ft) increasing to very good (127200 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Mostly cloudy. Rain likely until 2400. Snow likely. Chance of rain after 2400. Patchy fog after 0400. Snow accumulation up to 1 inch. Min temperature.....28-33. 24 hr trend......6 degrees cooler. Max humidity........89-95 percent. 24 hr trend......33 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast 10 to 15 mph and gusty. LAL.................1. Chc of wetting rain.25 percent. Transport winds.....Northeast around 25 mph. Mixing height.......1700-2200 ft AGL. Smoke dispersal.....Poor to fair (30200-44000 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly cloudy. Patchy fog until 0900. Snow likely until 1200, then chance of flurries and sprinkles. Snow accumulation of 1 to 2 inches. Max temperature.....34-39. 24 hr trend......25 degrees cooler. Min humidity........66-72 percent. 24 hr trend......52 percent wetter. 20-foot winds.......Northeast around 10 mph. LAL.................1. Chc of wetting rain.35 percent. Transport winds.....East around 10 mph shifting to the northwest in the afternoon. Mixing height.......1300-1800 ft AGL increasing to 2600-4200 ft AGL in the afternoon. Smoke dispersal.....Poor (12300-27500 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy with chance of flurries and sprinkles. Lows in the lower 20s. Highs around 40. Northwest winds around 5 mph. .FRIDAY...Mostly cloudy with chance of flurries. Lows in the upper 20s. Highs in the upper 30s. Northeast winds around 5 mph. .SATURDAY...Partly cloudy with chance of snow. Lows in the mid 20s. Highs in the upper 30s. East winds around 10 mph. .SUNDAY...Mostly cloudy. Chance of snow. Lows in the mid 20s. Highs in the mid 30s. .MONDAY...Partly cloudy with chance of flurries and sprinkles. Lows in the lower 20s. Highs in the mid 30s. $$ NEZ313-092315- Scotts Bluff National Monument/Wildcat Hills- 309 AM MST Tue Mar 9 2021 .TODAY... Sky/weather.........Partly cloudy. Chance of sprinkles after 1700. Max temperature.....59-65. 24 hr trend......5 degrees cooler. Min humidity........15-21 percent. 24 hr trend......7 percent drier. 20-foot winds.......West around 10 mph shifting to the north in the afternoon. Gusts up to 30 mph. LAL.................1. Chc of wetting rain.Zero percent. Transport winds.....West 15 to 20 mph. Mixing height.......300-1600 ft AGL increasing to 7400-9400 ft AGL in the afternoon. Smoke dispersal.....Poor (14600 knot-ft) increasing to very good (113600 knot-ft) in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Partly cloudy until 2100, then mostly cloudy until 2400, then partly cloudy until 0300, then mostly cloudy. Chance of sprinkles until 2400, then chance of rain and snow. Min temperature.....30-35. 24 hr trend......1 degree warmer. Max humidity........84-90 percent. 24 hr trend......24 percent wetter. Humidity recovery...Excellent. 20-foot winds.......Northeast around 10 mph and gusty. LAL.................1. Chc of wetting rain.10 percent. Transport winds.....Northeast around 20 mph. Mixing height.......1400-2400 ft AGL. Smoke dispersal.....Poor (27200-39000 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly cloudy. Chance of rain until 1200. Chance of snow. Chance of sprinkles after 1200. Max temperature.....40-45. 24 hr trend......19 degrees cooler. Min humidity........48-54 percent. 24 hr trend......37 percent wetter. 20-foot winds.......Northeast around 10 mph and gusty. LAL.................1. Chc of wetting rain.20 percent. Transport winds.....North around 10 mph increasing to west around 25 mph in the afternoon. Mixing height.......1100-1600 ft AGL increasing to 8000-10000 ft AGL in the afternoon. Smoke dispersal.....Poor (6300 knot-ft) increasing to excellent (202800 knot-ft) in the afternoon. Haines Index........4 or low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy with chance of sprinkles and flurries. Lows in the mid 20s. Highs in the lower 40s. North winds around 5 mph. .FRIDAY...Mostly cloudy with chance of snow and rain. Lows in the upper 20s. Highs in the upper 30s. East winds around 10 mph. .SATURDAY...Mostly cloudy with chance of snow. Lows in the mid 20s. Highs in the upper 30s. East winds around 10 mph. .SUNDAY...Mostly cloudy with chance of snow. Lows in the mid 20s. Highs in the mid 30s. .MONDAY...Partly cloudy with chance of sprinkles and flurries. Lows in the mid 20s. Highs in the upper 30s. $$