FNUS75 KRIW 161136 FWSRIW Spot Forecast for Upper Gros Ventre RX...BTNF National Weather Service Riverton WY 536 AM MDT Fri Oct 16 2026 Forecast is based on ignition time of 0700 MDT on October 16. If conditions become unrepresentative, contact the National Weather Service .DISCUSSION... Skies remain clear today, with highs in the 50s. Winds begin from the southeast around 5 mph, before switching from the west 5 to 8 mph after 1400. Light winds and low mixing heights will keep smoke dispersal poor through the day. .REST OF TODAY... Sky/weather.........Sunny (5-15 percent). Widespread frost early in the morning. CWR.................0 percent. Chance of pcpn......0 percent. Chance of thunder...0 percent. Max temperature.....Around 58. Min humidity........28 percent. Wind (20 ft)........Light winds. Ridgetop wind.......Southeast around 10 mph until 1100, then light until 1400, then west around 10 mph. Mixing height.......2000 ft AGL until 1400, then 3000 ft AGL. Transport winds.....Southeast around 9 mph until 1000, then south 7 to 8 mph until 1200, then light until 1300, then west 7 to 9 mph. Smoke dispersal.....Poor. TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........5 15 10 5 5 5 15 15 5 5 5 Weather cov.....WID WID WID Weather type....FST FST FST Tstm cov........ CWR.............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 Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 Temp............26 26 31 42 46 49 53 55 57 58 56 RH..............78 78 68 56 47 36 34 31 29 28 29 20 FT wind dir..E E SE S S W W W W W W 20 FT wind spd..4 4 4 3 2 1 2 4 4 4 3 20 FT wind gust.6 6 4 6 8 10 10 7 Ridge wind dir..E E SE S S W W W W W W Ridge wind spd..10 10 10 10 5 5 5 10 10 10 10 Mix hgt (kft)...0.5 0.5 0.5 1.0 1.5 1.5 2.0 2.5 3.0 2.5 2.0 Transp wind dir.E E SE S S SW W W W W W Transp wind spd.9 9 9 8 7 6 7 9 9 9 8 SDspl kt-ft/10004 4 4 6 8 8 13 20 23 22 14 .TONIGHT... Sky/weather.........Mostly clear (10-20 percent). CWR.................0 percent. Chance of pcpn......0 percent. Chance of thunder...0 percent. Min temperature.....Around 25. Max humidity........70 percent. Wind (20 ft)........Light winds. Ridgetop wind.......Light winds until 2100, then southeast around 10 mph. Mixing height.......500 ft AGL. Transport winds.....West around 7 mph until 1900, then light until 2000, then south 7 to 9 mph. Smoke dispersal.....Poor. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........10 10 15 20 15 15 15 15 20 20 15 20 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 Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............51 44 38 35 33 30 30 28 28 27 27 26 RH..............37 45 51 59 63 67 68 70 69 69 67 68 20 FT wind dir..NW NW E E SE SE SE SE SE SE SE SE 20 FT wind spd..2 1 2 4 4 4 3 3 3 3 3 3 20 FT wind gust.6 4 5 7 7 6 6 6 5 5 5 5 Ridge wind dir..NW NW E E SE SE SE SE SE SE SE SE Ridge wind spd..5 5 5 10 10 10 10 10 10 10 10 10 Mix hgt (kft)...1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Transp wind dir.W SW S S S S S S SE S S S Transp wind spd.7 6 7 9 9 9 8 8 8 8 8 8 SDspl kt-ft/10005 2 3 4 4 4 3 2 3 4 4 4 .SATURDAY... Sky/weather.........Mostly sunny (25-35 percent). CWR.................0 percent. Chance of pcpn......0 percent. Chance of thunder...0 percent. Max temperature.....Around 61. Min humidity........20 percent. Wind (20 ft)........Light winds. Ridgetop wind.......Southeast around 10 mph until 0800, then light until 0900, then southeast around 10 mph until 1000, then light until 1200, then west around 10 mph. Mixing height.......1500 ft AGL until 1200, then 3500 ft AGL. Transport winds.....South 7 to 9 mph until 1200, then west 12 to 16 mph. Smoke dispersal.....Poor until 1300, then poor early in the morning increasing to fair in the afternoon until 1500, then fair until 1600, then poor. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........35 40 35 35 25 25 25 30 25 25 15 25 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 Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............25 25 26 31 44 50 54 57 59 59 60 58 RH..............66 68 63 55 37 30 24 22 20 20 21 24 20 FT wind dir..SE SE SE SE S SW W W W W W W 20 FT wind spd..3 3 2 3 2 2 3 4 5 6 6 5 20 FT wind gust.5 5 4 6 5 6 7 10 12 14 14 11 Ridge wind dir..SE SE SE SE S SW W W W W W W Ridge wind spd..10 10 5 10 5 5 10 10 10 10 10 10 Mix hgt (kft)...0.5 0.5 0.5 0.5 1.0 1.5 2.5 3.0 3.5 3.5 3.0 2.0 Transp wind dir.S S S S SW SW W W W W W W Transp wind spd.8 8 7 8 8 9 12 13 14 16 14 13 SDspl kt-ft/10004 3 2 2 7 14 25 36 42 50 38 23 .FORECAST DAYS 3 THROUGH 5... .SUNDAY... Mostly clear. Lows in the mid 20s. Highs in the mid 50s. Light winds. .MONDAY... Clear. Lows in the mid 20s. Highs in the mid 50s. Light winds. .TUESDAY... Partly cloudy. Chance of showers. Lows in the upper 20s. Highs in the mid 50s. Light winds. $$ Forecaster...Straub Requested by...Eric Hawes Type of request...PRESCRIBED .TAG 2623595.4/RIW .DELDT 10/16/26 .FormatterVersion 2.0.0 .EMAIL eric.hawes@usda.gov