Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
401 FNUS75 KBOU 060905 FWSBOU Spot Forecast for Forsythe II Rx - Unit 44...USFS National Weather Service Denver/Boulder CO 305 AM MDT Mon May 6 2024 If conditions become unrepresentative...contact the National Weather Service. Strong winds will prevail at the burn area through the forecast period. A High Wind Warning continues through Tuesday 6 AM. Westerly winds are expected to produce wind gusts up to 60-70 mph today and tonight. Expected snow showers to occur briefly early morning hours then transitioning to rain showers by late this morning through early evening. Snow will occur once more tonight through Tuesday morning; snowfall totals range from 1-2 inches. Gusty winds continue Tuesday afternoon with west winds producing wind gusts up to 45 mph. Humidities remain well above 40 percent through the entire period. .REST OF TODAY... Sky/weather.........Mostly cloudy (60-70 percent). Chance of snow showers. Slight chance of thunderstorms after 1200. CWR.................25 percent increasing to 26 percent late in the afternoon. Chance of pcpn......50 percent. LAL.................1 until 1200, then 3. Max temperature.....Around 44. Min humidity........38 percent. Wind (20 ft)........Very windy. West winds 34 to 44 mph with gusts to around 60 mph. Gusty and erratic winds expected near thunderstorms after 1200. Mixing height.......4900 ft AGL. Transport winds.....West 45 to 55 mph until 0900. 55 to 65 mph after 1600. Smoke dispersal.....Good until 0800, then excellent. Haines Index........3 or very low potential for large plume dominated fire growth. TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........64 64 62 59 66 60 58 64 72 72 71 Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC Weather type....SW SW SW SW SW SW SW SW SW SW SW Tstm cov........ SCH SCH SCH SCH SCH SCH CWR.............20 20 20 20 20 20 30 30 30 30 20 Chc of pcpn (%).50 50 40 40 30 30 40 40 40 40 30 LAL.............1 1 1 1 1 3 3 3 3 3 3 Temp............31 32 33 35 37 38 40 41 42 43 40 RH..............53 51 47 45 43 43 40 40 40 38 42 20 FT wind dir..W W W W W W W W W W W 20 FT wind spd..38 38 41 40 38 37 37 36 37 38 40 20 FT wind gust.58 58 60 59 58 55 55 54 55 58 59 Mix hgt (kft)...2.4 3.4 4.4 4.6 4.3 5.1 5.0 5.3 5.1 4.4 3.7 Transp wind dir.W W W W W W W W W W W Transp wind spd.47 53 56 54 53 52 52 52 56 60 60 Haines index....3 3 3 3 3 3 3 3 3 3 3 Vrate kt-ft/1K..99 158 215 214 198 230 226 238 248 229 190 SmokeDispersion.G E E E E E E E E E E .TONIGHT... Sky/weather.........Mostly cloudy (50-60 percent) until 2200, then partly cloudy (35-45 percent) until 0300, then mostly cloudy (50-60 percent). Slight chance of thunderstorms until 2400. Chance of snow showers. CWR.................7 percent. Chance of pcpn......40 percent. LAL.................3 until 2100, then 1. Min temperature.....Around 31. Max humidity........59 percent. Wind (20 ft)........Very windy. West winds 38 to 48 mph with gusts to around 68 mph until 2400. 22 to 30 mph with gusts to around 41 mph after 0300. Gusty and erratic winds expected near thunderstorms until 2100. Mixing height.......2800 ft AGL until 2000, then 1000 ft AGL until 0300, then Below 1000 FT AGL until 0400, then 1100 ft AGL. Transport winds.....West 49 to 59 mph until 2000. 24 to 30 mph after 0200. Smoke dispersal.....Excellent until 1900, then very good until 2000, then fair until 2400, then poor. Haines Index........3 or very low potential for large plume dominated fire growth. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........61 56 52 51 45 40 33 38 48 52 54 57 Weather cov.....CHC CHC CHC CHC SCH SCH SCH SCH SCH CHC CHC CHC Weather type....SW SW SW SW SW SW SW SW SW SW SW SW Tstm cov........SCH SCH SCH CWR.............10 10 10 10 10 10 10 10 10 10 10 10 Chc of pcpn (%).30 30 30 30 20 20 20 20 20 30 30 40 LAL.............3 3 3 1 1 1 1 1 1 1 1 1 Temp............39 39 35 35 34 34 34 34 32 32 32 32 RH..............43 45 53 53 55 55 52 52 52 52 55 59 20 FT wind dir..W W W W W W W W W W W W 20 FT wind spd..41 44 43 47 43 39 37 33 30 28 24 23 20 FT wind gust.60 63 62 68 62 59 55 51 45 41 37 35 Mix hgt (kft)...3.4 2.8 1.4 1.3 1.2 1.3 1.1 1.1 1.0 0.9 1.1 1.2 Transp wind dir.W W W W W W W W W W W W Transp wind spd.58 49 43 51 44 40 38 33 30 28 25 24 Haines index....3 3 3 3 3 3 3 3 3 3 3 3 Vrate kt-ft/1K..168 122 52 56 46 45 36 31 25 20 24 24 SmokeDispersion.E VG F F F F P P P P P P .TUESDAY... Sky/weather.........Mostly cloudy (65-75 percent). Chance of snow showers. Slight chance of thunderstorms after 1200. CWR.................24 percent. Chance of pcpn......50 percent. LAL.................1 until 1200, then 3. Max temperature.....Around 46. Min humidity........32 percent. Wind (20 ft)........West winds 17 to 25 mph with gusts to around 41 mph. Gusty and erratic winds expected near thunderstorms after 1200. Mixing height.......3100 ft AGL until 1000. 7300 ft AGL after 1200. Transport winds.....West 20 to 28 mph until 1000, then 32 to 38 mph until 1200, then 36 to 46 mph until 1600, then 31 to 36 mph. Smoke dispersal.....Poor until 0800, then good until 1000, then very good until 1100, then excellent. Haines Index........4 or low potential for large plume dominated fire growth. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........67 67 67 64 65 72 73 72 73 72 70 70 Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC Weather type....SW SW SW SW SW SW SW SW SW SW SW SW Tstm cov........ SCH SCH SCH SCH SCH SCH CWR.............20 20 20 20 20 20 20 20 20 20 20 20 Chc of pcpn (%).40 40 40 40 40 40 50 50 50 50 50 50 LAL.............1 1 1 1 1 1 3 3 3 3 3 3 Temp............32 35 38 41 44 45 46 46 46 46 46 45 RH..............58 54 50 42 39 38 37 35 35 32 32 32 20 FT wind dir..W W W W W W W W W W W W 20 FT wind spd..17 18 18 20 22 23 24 24 23 22 22 22 20 FT wind gust.22 22 25 29 33 38 41 41 41 39 38 37 Mix hgt (kft)...1.0 1.9 2.8 3.8 5.1 6.5 7.8 7.8 7.7 7.6 6.7 5.8 Transp wind dir.W W W W W W W W W W W W Transp wind spd.20 22 25 28 32 38 43 41 39 38 35 32 Haines index....4 4 4 4 4 4 4 4 4 4 4 4 Vrate kt-ft/1K..16 37 61 91 145 212 290 277 264 251 203 161 SmokeDispersion.P P G G VG E E E E E E E $$ Forecaster...AD Requested by...Luke Finn Type of request...PRESCRIBED .TAG 2412828.5/BOU .DELDT 05/06/24 .FormatterVersion 2.0.0 .EMAIL luke.finn@usda.gov