462 FNUS75 KBOU 062238 FWSBOU Spot Forecast for WINDY GAP FIRE...COUNTY National Weather Service Denver/Boulder CO 438 PM MDT Wed Aug 6 2025 If conditions become unrepresentative...contact the National Weather Service. ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING... ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT THURSDAY... ...FIRE WEATHER WATCH IN EFFECT FROM NOON TO 8 PM MDT FRIDAY... .DISCUSSION...Critical fire weather conditions with gusty winds and low humidity can be expected each afternoon and evening through Friday. For the rest of today, gusty winds to around 20-25 mph will continue through about 6 pm, before gradually weakening. By 8 pm, we expect wind speeds to generally range from 6-10 mph, with a further decrease to light and variable overnight. The Red Flag conditions should cease before 8 pm. Humidity recovery will be good overnight despite the very dry airmass in place, and that's due to chilly overnight temperatures and a sharp but shallow inversion. This area should have light winds overnight, although an easterly downslope drainage wind is possible leading into the canyon, so something to watch for during the overnight. On Thursday, Red Flag conditions will redevelop Noon to 8 pm, with slightly windier conditions than today. Gusts around 30 mph will be likely from Noon to 5-6 pm. A gradual decrease can be expected thereafter. Humidity levels will drop sharply, along with a return of very warm temperatures for the afternoon. Minimum RH is expected to lower to about 13 percent. Friday is expected to be windy and dry again during the afternoon, with critical Red Flag conditions likely. .REST OF TODAY... Sky/weather.........Partly cloudy (30-40 percent). Areas of smoke. CWR.................1 percent. Chance of thunder...5 percent. Max temperature.....Around 83. Min humidity........13 percent. Wind (20 ft)........West winds around 16 mph with gusts to around 25 mph. Mixing height.......13300 ft AGL. Transport winds.....West around 25 mph. Smoke dispersal.....Excellent. TIME (MDT) 5PM Sky (%).........36 Weather cov.....ARS Weather type....SMK Tstm cov........ CWR.............0 Chc of thdr (%).10 Temp............82 RH..............13 20 FT wind dir..W 20 FT wind spd..16 20 FT wind gust.25 Mix hgt (kft)...13 Transp wind dir.W Transp wind spd.25 Vrate kt-ft/1K..292 SmokeDispersion.E .TONIGHT... Sky/weather.........Partly cloudy (25-35 percent). Areas of smoke until 2400. CWR.................1 percent. Chance of thunder...5 percent. Min temperature.....Around 40. Max humidity........69-73 percent. Wind (20 ft)........West winds 8 to 14 mph with gusts to around 22 mph until 2000, then southwest 5 to 7 mph until 2400, then variable 2 to 8 mph. Mixing height.......12200 ft AGL until 1900. 1300 ft AGL after 2000. Transport winds.....West 15 to 23 mph until 2000, then 8 to 13 mph until 2300, then southwest 8 to 10 mph until 0100, then around 8 mph until 0300, then light. Smoke dispersal.....Excellent until 1900, then fair until 2000, then poor. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........36 39 38 36 28 24 24 20 19 18 20 25 Weather cov.....ARS ARS ARS ARS ARS ARS Weather type....SMK SMK SMK SMK SMK SMK Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 Chc of thdr (%).10 10 0 0 0 0 0 0 0 0 0 0 Temp............79 77 72 65 61 57 54 51 49 46 44 43 RH..............16 18 21 28 32 38 43 48 54 60 62 66 20 FT wind dir..W W W SW SW SW SW SW SE SE E E 20 FT wind spd..14 12 8 6 5 5 3 3 3 3 3 3 20 FT wind gust.22 18 13 9 7 7 6 6 6 6 6 6 Mix hgt (kft)...12 4.3 1.4 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 Transp wind dir.W W W W W SW SW SW SW SW S SE Transp wind spd.23 15 12 9 8 7 7 6 5 5 3 5 Vrate kt-ft/1K..243 55 14 10 9 8 8 7 5 5 4 5 SmokeDispersion.E F P P P P P P P P P P .THURSDAY... Sky/weather.........Partly cloudy (25-35 percent) until 0800, then mostly sunny (15-25 percent) until 1100, then partly cloudy (30-40 percent). Patchy smoke. CWR.................1 percent. Chance of thunder...5 percent. Max temperature.....Around 83. Min humidity........13 percent. Wind (20 ft)........Variable around 5 mph until 0900, then southwest 6 to 12 mph until 1200, then west 14 to 22 mph with gusts to around 30 mph. Mixing height.......2100 ft AGL until 1000. 12600 ft AGL after 1100. Transport winds.....Light winds until 1000, then west around 13 mph until 1100, then 24 to 29 mph. Smoke dispersal.....Poor until 1000, then fair until 1100, then excellent. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........28 31 18 21 22 30 38 41 33 36 37 36 Weather cov.....PTY PTY PTY PTY PTY PTY PTY PTY PTY PTY PTY PTY Weather type....SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 0 10 10 10 10 10 10 Temp............42 45 52 57 68 75 78 81 82 83 83 82 RH..............69 67 57 50 33 26 20 17 15 14 13 14 20 FT wind dir..E E W SW SW W W W W W W W 20 FT wind spd..3 3 3 5 7 12 16 18 20 20 20 20 20 FT wind gust.6 6 6 7 12 18 25 30 31 31 31 31 Mix hgt (kft)...1.3 1.3 1.4 2.1 4.6 9.2 11 12 12 13 13 12 Transp wind dir.SW W SW W W W W W W W W W Transp wind spd.3 5 3 6 13 24 26 28 29 26 28 28 Vrate kt-ft/1K..4 5 4 11 51 193 253 285 310 293 307 297 SmokeDispersion.P P P P F E E E E E E E .FORECAST DAYS 3 THROUGH 5... .FRIDAY... Partly cloudy. Lows in the lower 40s. Highs in the lower 80s. Southwest winds 10-18 mph with gusts around 35 mph in the afternoon. .SATURDAY... Partly cloudy. Lows in the lower 40s. Highs in the upper 70s. Southwest winds around 10 mph. .SUNDAY... Partly cloudy with slight chance of showers and thunderstorms. Lows in the upper 30s. Highs in the upper 70s. Southwest winds around 8 mph. $$ Forecaster...Barjenbruch Requested by...PAUL MINTEAR Type of request...WILDFIRE .TAG 2519444.0/BOU .DELDT 08/06/25 .FormatterVersion 2.0.0 .EMAIL PMINTEAR@CO.GRAND.CO.US