Spot Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
000 FNUS75 KRIW 111123 FWSRIW Spot Forecast for Star Valley Front Rx Unit 2...USFS BTF WZ National Weather Service Riverton WY 523 AM MDT Thu Apr 11 2024 Forecast is based on ignition time of 0600 MDT on April 11. If conditions become unrepresentative, contact the National Weather Service .DISCUSSION... Warm and dry conditions are expected today. Skies should remain mostly sunny. Generally light upslope/upvalley wind though the day, though favoring out of the west during the afternoon. Friday will see warmer temperatures and an increased southwest wind, as well as chances for light rain showers. ...Thunderstorms imply strong gusty and erratic winds... ...Haines index is high level haines both day and night... .TODAY... Sky/weather.........Sunny (5-15 percent). CWR.................0 percent. Chance of pcpn......0 percent. LAL.................1. Max temperature.....Around 53. Min humidity........38 percent. Wind (20 ft)........Upslope/upvalley 4 to 7 mph. Ridgetop wind.......Southeast around 10 mph shifting to the southwest 10 to 15 mph after 1200. Mixing height.......500 ft AGL increasing to 3600 ft AGL by 1500. Transport winds.....South around 9 mph shifting to the west 10 to 13 mph after 1200. Smoke dispersal.....Poor (4000 knot-ft). Haines Index........2. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........21 19 14 10 10 9 3 7 6 10 12 10 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0 LAL.............1 1 1 1 1 1 1 1 1 1 1 1 Temp............29 29 31 35 38 41 44 47 49 51 52 51 RH..............86 86 84 79 71 63 57 52 48 39 45 45 20 FT wind dir..SE SE SE S S S S SW SW W W SW 20 FT wind spd..5 4 3 3 4 4 4 4 6 6 7 7 20 FT wind gust.6 5 4 4 6 6 6 6 8 10 11 11 Ridge wind dir..SE SE SE S S S SW SW SW W W W Ridge wind spd..10 10 10 10 10 10 10 10 10 15 15 15 Mix hgt (kft)...0.5 0.5 0.5 0.7 0.7 0.7 2.7 2.7 2.7 3.6 3.6 3.6 Transp wind dir.S S S S S S W W W W W W Transp wind spd.9 9 9 9 9 9 10 10 10 13 13 13 Haines index....2 2 2 2 2 2 2 2 2 2 2 2 SDspl kt-ft/10004 4 4 6 6 6 25 25 25 39 39 39 .TONIGHT... Sky/weather.........Mostly clear (20-30 percent). CWR.................0 percent. Chance of pcpn......10 percent. LAL.................1. Min temperature.....Around 33. Max humidity........81 percent. Wind (20 ft)........Downslope/downvalley 3 to 6 mph. Ridgetop wind.......Southwest around 10 mph shifting to the southeast around 15 mph after 2100. Mixing height.......2600 ft AGL decreasing to 500 ft AGL by midnight. Transport winds.....West around 12 mph becoming south after 2100. Smoke dispersal.....Poor (5700 knot-ft). Haines Index........3 to 4. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........8 8 6 7 6 6 6 8 11 18 15 43 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 10 LAL.............1 1 1 1 1 1 1 1 1 1 1 1 Temp............52 49 45 42 40 39 38 37 36 35 35 34 RH..............46 47 58 64 68 68 69 69 69 71 72 75 20 FT wind dir..SW SW S SE SE SE SE SE SE SE SE SE 20 FT wind spd..6 6 6 6 6 6 6 6 6 6 6 6 20 FT wind gust.10 10 10 10 7 10 10 10 10 10 10 10 Ridge wind dir..SW SW SW SE SE SE SE SE SE SE SE SE Ridge wind spd..10 10 10 15 15 15 15 15 15 15 15 15 Mix hgt (kft)...2.6 2.6 2.6 1.5 1.5 1.5 0.5 0.5 0.5 0.5 0.5 0.5 Transp wind dir.W W W S S S SE SE SE S S S Transp wind spd.12 12 12 13 13 13 13 13 13 13 13 13 Haines index....3 3 3 3 3 3 4 4 4 4 4 4 SDspl kt-ft/100026 26 26 17 17 17 6 6 6 6 6 6 .FRIDAY... Sky/weather.........Mostly sunny (40-50 percent). Chance of light rain showers throughout the day. CWR.................0 percent. Chance of pcpn......30 percent. LAL.................1. Max temperature.....Around 61. Min humidity........33 percent. Wind (20 ft)........Southeast winds 6 to 9 mph shifting to the southwest 10 to 12 mph after 1300 with gusts to around 18 mph. Ridgetop wind.......Southeast 10 to 15 mph becoming southwest around 20 mph after 1200. Mixing height.......500 ft AGL increasing to 6300 ft AGL by 1500. Transport winds.....South 12 to 20 mph shifting to the southwest around 24 mph by 1500. Smoke dispersal.....Poor (5200 knot-ft) increasing to very good (132900 knot-ft) by 1500. Haines Index........4. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........49 64 58 50 50 38 26 28 31 33 34 34 Weather cov..... ISO ISO ISO SCT SCT SCT SCT SCT SCT Weather type.... RW RW RW RW RW RW RW RW RW Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 Chc of pcpn (%).10 10 10 20 20 20 30 30 30 30 30 30 LAL.............1 1 1 1 1 1 1 1 1 1 1 1 Temp............34 36 38 41 45 48 52 54 56 58 59 59 RH..............76 75 75 69 64 56 49 44 39 34 35 36 20 FT wind dir..SE SE SE SE S S S S SW SW SW S 20 FT wind spd..6 6 6 6 7 9 10 11 11 11 12 11 20 FT wind gust.7 7 7 7 10 13 14 16 17 17 18 17 Ridge wind dir..SE SE SE S S S S S S SW SW SW Ridge wind spd..10 10 10 15 15 15 20 20 20 20 20 20 Mix hgt (kft)...0.5 0.5 0.5 0.6 0.6 0.6 3.9 3.9 3.9 6.3 6.3 6.3 Transp wind dir.S S S S S S S S S SW SW SW Transp wind spd.12 12 12 14 14 14 20 20 20 24 24 24 Haines index....4 4 4 4 4 4 4 4 4 4 4 4 SDspl kt-ft/10005 5 5 8 8 8 67 67 67 133 133 133 .FORECAST DAYS 3 THROUGH 5... .SATURDAY... Mostly clear. Lows in the mid 30s. Highs in the lower 60s. Southwest winds around 6 to 10 mph. .SUNDAY... Mostly clear. Chance of showers. Lows in the lower 30s. Highs in the upper 50s. Southwest winds around 6 to 12 mph. .MONDAY... Cooler. Mostly cloudy. Chance of showers and snow showers. Lows around 30. Highs in the upper 40s. West winds around 7 mph. $$ Forecaster...Myers Requested by...Michael McEwen Type of request...PRESCRIBED .TAG 2410282.0/RIW .DELDT 04/11/24 .FormatterVersion 2.0.0 .EMAIL michael.mcewen@usda.gov
- National Weather Service
- Western and Central Wyoming Weather Forecast Office
- 12744 West U.S. Hwy 26
- Riverton, WY 82501
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