Spot Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
225 FNUS75 KRIW 272010 FWSRIW Spot Forecast for Horse...WYBTF National Weather Service Riverton WY 210 PM MDT Fri Jun 27 2025 Forecast is based on forecast start time of 0700 MDT on June 28. If conditions become unrepresentative, contact the National Weather Service .DISCUSSION... Warm, dry, and breezy conditions are forecast on Saturday with mostly sunny skies. Light downsloping winds are forecast through 0900L then increase from the west after 1100L with gusts between 20- 25 mph. An occasional gust up to 30 mph is possible. Minimum relative humidity values are forecast to occur between 1100L-2000L with values between 30-35 percent. Afternoon mixing heights increase to around 8500ft AGL with unstable conditions between 1200L-1700L. Dry, warm, and breezy conditions are expected to continue into early next week with little to no precipitation chances. ...Thunderstorms imply strong gusty and erratic winds... .SATURDAY... Sky/weather.........Sunny (10-20 percent). CWR.................0 percent. Chance of pcpn......0 percent. Chance of thunder...2 percent. Max temperature.....Around 70. Min humidity........31 percent. Wind (20 ft)........Light winds until 0900, then west 8 to 16 mph with gusts around 22 mph. Ridgetop wind.......West 10 to 15 mph until 1100, then 20 to 25 mph. Mixing height.......1000 ft AGL until 0900. 8500 ft AGL after 1400. Transport winds.....West 12 to 21 mph until 1300, then 24 to 26 mph. Smoke dispersal.....Poor until 0900. Excellent after 1400. TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........25 10 5 10 10 10 15 10 10 10 15 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............50 55 59 63 64 65 69 68 69 69 67 RH..............49 45 42 38 36 34 33 31 31 31 32 20 FT wind dir..W W W W W W W W W W W 20 FT wind spd..6 6 8 10 11 12 13 15 16 15 15 20 FT wind gust.7 10 12 14 16 17 18 20 22 20 20 Ridge wind dir..W W W W W W W W W W W Ridge wind spd..10 15 15 15 20 20 20 25 25 25 25 Mix hgt (kft)...0.5 1.0 2.5 4.0 6.0 7.0 7.5 8.0 8.0 8.5 8.0 Transp wind dir.W W W W W W W W W W W Transp wind spd.12 13 15 17 18 21 24 25 25 26 25 SDspl kt-ft/10006 12 34 63 94 124 157 175 181 192 172 .SATURDAY NIGHT... Sky/weather.........Mostly clear (10-20 percent). CWR.................0 percent. Chance of pcpn......0 percent. Chance of thunder...1 percent. Min temperature.....Around 45. Max humidity........51 percent. Wind (20 ft)........West winds 7 to 15 mph with gusts to around 20 mph until 2300, then light. Ridgetop wind.......West 20 to 25 mph until 2000, then 10 to 15 mph. Mixing height.......5500 ft AGL until 2000, then 500 ft AGL. Transport winds.....West 17 to 24 mph until 2200, then 10 to 14 mph. Smoke dispersal.....Excellent early in the evening decreasing to very good late in the night until 2000. Poor after 2100. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........15 10 15 20 15 15 10 5 5 5 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............67 65 62 59 56 53 51 50 49 49 47 46 RH..............33 35 38 40 44 46 47 49 50 51 50 48 20 FT wind dir..W W W W W W W W W W W W 20 FT wind spd..15 14 10 9 7 6 6 5 5 5 5 5 20 FT wind gust.20 19 14 13 10 7 7 6 6 6 6 6 Ridge wind dir..W W W W W W W W W W W W Ridge wind spd..25 20 15 15 15 10 10 10 10 10 10 10 Mix hgt (kft)...7.0 5.5 2.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Transp wind dir.W W W W W W W W W W W W Transp wind spd.24 24 18 17 14 14 13 12 12 10 10 10 SDspl kt-ft/1000151 121 29 9 7 6 5 5 5 5 5 5 .SUNDAY... Sky/weather.........Sunny (5-15 percent). CWR.................0 percent. Chance of pcpn......0 percent. Chance of thunder...0 percent. Max temperature.....Around 70. Min humidity........23 percent. Wind (20 ft)........Light winds until 1000, then west 7 to 12 mph with gusts to around 20 mph. Ridgetop wind.......West 10 to 15 mph until 1300, then around 20 mph. Mixing height.......2000 ft AGL until 0900. 8000 ft AGL after 1300. Transport winds.....West 10 to 18 mph until 1400, then around 20 mph. Smoke dispersal.....Poor until 0800. Very good after 1400. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........10 10 5 5 5 5 5 5 5 5 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............47 50 55 59 62 64 66 68 69 70 70 70 RH..............44 40 36 32 29 27 25 24 23 23 24 25 20 FT wind dir..W W W W W W W W W W W NW 20 FT wind spd..5 6 6 6 7 9 10 11 12 12 12 12 20 FT wind gust.8 10 11 13 14 16 18 18 19 20 20 20 Ridge wind dir..W W W W W W W W W W W NW Ridge wind spd..10 10 10 15 15 15 15 20 20 20 20 20 Mix hgt (kft)...0.5 1.5 2.0 3.0 4.0 5.0 6.5 7.0 7.5 8.0 7.5 7.0 Transp wind dir.W W W W W W W W W W W W Transp wind spd.10 12 12 13 14 16 17 18 20 20 20 20 SDspl kt-ft/10004 13 20 31 48 72 95 109 124 133 127 121 .FORECAST DAYS 3 THROUGH 5... .MONDAY... Mostly clear. Lows in the mid 40s and highs in the lower 70s. Light winds. .TUESDAY... Mostly clear. Lows in the upper 40s and highs in the mid 70s. Light winds. .WEDNESDAY... Partly cloudy. Slight chance of showers and thunderstorms. Lows in the lower 50s and highs in the lower 70s. Southwest winds around 7 mph. $$ Forecaster...Gerhardt Requested by...Anna Sammer, PSC3 Type of request...WILDFIRE .TAG 2515958.15/RIW .DELDT 06/27/25 .FormatterVersion 2.0.0 .EMAIL anna_sammer@firenet.gov