FNUS75 KRIW 191048 FWSRIW Spot Forecast for WIND RIVER CANYON...WRA National Weather Service Riverton WY 448 AM MDT Tue May 19 2026 Forecast is based on forecast start time of 0700 MDT on May 19. If conditions become unrepresentative, contact the National Weather Service .DISCUSSION... Dry conditions, light winds and mostly clear skies will be in place through much of the day today. Mid to high level clouds will move over the site late this afternoon and become clear again late tonight. Expect similar conditions again Wednesday, with scattered clouds through the afternoon. ...Thunderstorms imply strong gusty and erratic winds... .TODAY... Sky/weather.........Sunny (5-15 percent). CWR.................0 percent. Chance of pcpn......0 percent. Chance of thunder...0 percent. Max temperature.....Around 54. Min humidity........30 percent. Wind (20 ft)........Light winds until 0800, then south 7 to 8 mph until 1200, then light until 1500, then south 7 to 10 mph. Ridgetop wind.......South around 15 mph. Mixing height.......2000 ft AGL until 1100. 6500 ft AGL after 1300. Transport winds.....South 13 to 17 mph. Smoke dispersal.....Poor until 0900. Good after 1500. TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........10 15 5 5 0 0 0 0 0 0 5 Weather cov..... Weather type.... 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............31 34 37 40 43 46 48 50 52 52 53 RH..............79 78 75 69 61 53 45 39 34 31 30 20 FT wind dir..S S S S S S S S S S S 20 FT wind spd..6 7 8 8 7 6 6 6 7 8 10 20 FT wind gust.8 10 10 10 8 7 7 8 10 11 13 Ridge wind dir..S S S S S S S S S S S Ridge wind spd..15 15 15 15 15 15 15 15 15 15 15 Mix hgt (kft)...0.5 1.0 2.0 2.0 3.0 4.0 5.0 6.0 6.5 6.5 6.0 Transp wind dir.S S S S SW SW SW S S S S Transp wind spd.13 14 15 15 14 13 13 13 14 15 17 SDspl kt-ft/10005 15 24 28 34 43 55 64 75 82 87 .TONIGHT... Sky/weather.........Mostly clear (10-20 percent). CWR.................0 percent. Chance of pcpn......0 percent. Chance of thunder...0 percent. Min temperature.....Around 33. Max humidity........68 percent. Wind (20 ft)........South winds 7 to 11 mph until 0500, then light. Ridgetop wind.......South 15 to 20 mph. Mixing height.......5500 ft AGL until 1900. 500 ft AGL after 2000. Transport winds.....South 13 to 18 mph. Smoke dispersal.....Good until 1900. Poor after 2400. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........10 15 25 30 25 15 5 5 5 0 5 5 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............53 50 47 44 42 41 39 38 37 35 35 34 RH..............31 34 38 43 47 51 54 56 58 59 59 60 20 FT wind dir..S S S S S S S S S S S S 20 FT wind spd..11 11 10 9 9 9 9 8 8 7 7 6 20 FT wind gust.14 14 14 13 13 13 12 12 11 10 10 8 Ridge wind dir..S S S S S S S S S S S S Ridge wind spd..20 2015 15 15 15 15 15 15 15 15 15 Mix hgt (kft)...5.5 3.5 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Transp wind dir.S S S S S S S S S S S S Transp wind spd.18 18 17 16 16 16 16 15 15 14 14 13 SDspl kt-ft/100087 54 16 7 7 7 6 6 6 5 6 5 .WEDNESDAY... Sky/weather.........Mostly sunny (25-35 percent). CWR.................0 percent. Chance of pcpn......0 percent. Chance of thunder...2 percent. Max temperature.....Around 65. Min humidity........31 percent. Wind (20 ft)........Light winds until 0700, then south 7 to 10 mph with gusts to around 17 mph. Ridgetop wind.......South around 15 mph. Mixing height.......2000 ft AGL until 1100. 9500 ft AGL after 1400. Transport winds.....Southwest 13 to 17 mph. Smoke dispersal.....Poor until 1000. Very good after 1400. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........5 15 20 20 25 25 30 45 30 25 35 50 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............34 35 39 43 50 55 58 61 63 63 64 65 RH..............60 59 55 52 50 46 41 37 33 31 30 30 20 FT wind dir..S S S S S S S S S S S SW 20 FT wind spd..6 9 8 8 7 7 7 7 9 10 10 10 20 FT wind gust.8 11 11 11 11 11 11 12 14 16 16 17 Ridge wind dir..S S S S S S S S S S S SW Ridge wind spd..15 15 15 15 15 15 15 15 15 15 15 15 Mix hgt (kft)...0.5 0.5 1.0 1.0 2.0 4.0 6.0 7.5 9.0 9.5 9.5 9.0 Transp wind dir.S S S S SW SW SW SW SW SW SW SW Transp wind spd.13 16 15 15 14 14 14 14 16 17 17 17 SDspl kt-ft/10005 7 11 14 25 47 74 91 127 144 140 138 .FORECAST DAYS 3 THROUGH 5... .THURSDAY... Mostly cloudy with showers, slight chance of thunderstorms and snow showers. Lows in the upper 30s. Highs in the mid 50s. North winds around 10 mph. .FRIDAY... Partly cloudy. Chance of showers. Lows in the upper 30s. Highs in the mid 60s. Southwest winds around 8 mph. .SATURDAY... Mostly clear. Lows in the lower 40s. Highs in the mid 70s. Light winds. $$ Forecaster...LaVoie Requested by...Aubrey Williams Type of request...WILDFIRE .TAG 2613862.2/RIW .DELDT 05/19/26 .FormatterVersion 2.0.0 .EMAIL wycdc@firenet.gov,jacob.binns@bia.gov