Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
030 FNUS75 KBOU 050957 FWSBOU Spot Forecast for Forsythe II Rx - Unit 44...USFS National Weather Service Denver/Boulder CO 357 AM MDT Sun May 5 2024 If conditions become unrepresentative...contact the National Weather Service. A High Wind Watch is in effect for this area starting 6 AM MDT Monday morning. Gusty southeasterly winds are expected through tonight. Winds increase this afternoon between 10-15 mph then again this evening to 18-26 mph. Wind gusts up to 30 mph could occur late afternoon then increasing once more to 35-40 mph gusts this evening. Relative humidities for the burn area remain above 25 percent through the forecast period. Tonight, light snow showers are possible. Monday, winds shift westerly increasing to very windy conditions producing wind gusts up to 60-75 mph. Additionally, up to 2-3 inches of snow could occur by Monday afternoon. .REST OF TODAY... Sky/weather.........Partly cloudy (35-45 percent) until 0800, then mostly cloudy (65-75 percent). CWR.................2 percent. Chance of pcpn......10 percent. LAL.................1. Max temperature.....Around 66. Min humidity........26 percent. Wind (20 ft)........Southwest winds 5 to 8 mph until 0900, then south 7 to 15 mph with gusts to around 25 mph. Mixing height.......Below 1000 FT AGL until 0900. 8800 ft AGL after 1300. Transport winds.....Southwest 13 to 21 mph until 1300, then 24 to 29 mph. Smoke dispersal.....Poor until 1100, then fair until 1200, then good until 1300, then excellent. Haines Index........5 or moderate potential for large plume dominated fire growth. TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........41 56 65 78 83 86 81 75 69 69 72 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 10 0 10 10 10 10 LAL.............1 1 1 1 1 1 1 1 1 1 1 Temp............39 44 47 53 55 57 61 62 63 65 63 RH..............61 56 51 40 39 37 31 30 28 26 28 20 FT wind dir..SW SW S S S S S S S S S 20 FT wind spd..6 6 6 8 10 12 14 15 16 16 16 20 FT wind gust.9 9 9 13 16 18 22 24 25 25 25 Mix hgt (kft)...0.6 0.7 1.2 2.3 3.4 5.5 8.0 9.1 9.4 9.1 7.3 Transp wind dir.SW SW SW SW S S S S S SW SW Transp wind spd.13 13 13 16 16 21 24 25 26 28 24 Haines index....5 5 5 5 5 5 5 5 5 5 5 Vrate kt-ft/1K..6 8 13 33 47 98 168 201 217 218 152 SmokeDispersion.P P P P F G E E E E E .TONIGHT... Sky/weather.........Mostly cloudy (60-70 percent). Slight chance of rain showers after 2000 until 2400, then chance of rain showers until 0500. Chance of snow showers after 0300. CWR.................7 percent. Chance of pcpn......40 percent. LAL.................1. Min temperature.....Around 33. Max humidity........62 percent. Wind (20 ft)........Breezy. Southwest winds 13 to 21 mph until 0200, then 18 to 26 mph until 0500, then west around 25 mph. Gusts up to 38 mph. Mixing height.......6200 ft AGL until 1900, then 2600 ft AGL until 2000, then Below 1000 FT AGL until 0500, then 1400 ft AGL. Transport winds.....Southwest 20 to 25 mph until 2000. West 27 to 32 mph after 0400. Smoke dispersal.....Very good until 1900, then fair until 2000, then poor. Haines Index........5 or moderate potential for large plume dominated fire growth. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........76 80 73 66 56 51 51 54 57 58 59 59 Weather cov..... SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC Weather type.... RW RW RW RW RW RW RW RS RS SW Tstm cov........ SCH CWR.............0 0 0 10 10 10 10 10 10 10 10 10 Chc of pcpn (%).10 10 10 20 20 20 30 30 40 40 40 40 LAL.............1 1 2 1 1 1 1 1 1 1 1 1 Temp............61 59 53 51 49 48 47 45 45 41 39 37 RH..............31 33 40 43 45 45 47 50 50 57 60 62 20 FT wind dir..SW SW SW SW SW SW SW SW SW SW W W 20 FT wind spd..14 15 14 15 16 18 20 20 20 20 23 25 20 FT wind gust.22 24 22 24 25 30 31 31 31 31 35 38 Mix hgt (kft)...6.2 2.6 0.8 0.9 0.8 0.8 0.8 0.8 0.7 0.7 0.7 1.4 Transp wind dir.SW SW SW SW SW SW SW SW SW SW W W Transp wind spd.24 20 15 15 16 18 20 21 22 23 29 29 Haines index....5 5 5 5 5 5 5 5 5 5 5 5 Vrate kt-ft/1K..130 44 11 11 11 13 14 14 14 15 17 34 SmokeDispersion.VG F P P P P P P P P P P .MONDAY... Sky/weather.........Mostly cloudy (55-65 percent) until 1200, then partly cloudy (45-55 percent). Chance of snow showers. Slight chance of thunderstorms after 1200. CWR.................6 percent. Chance of pcpn......40 percent. LAL.................1 until 1200, then 3. Max temperature.....Around 47. Min humidity........28 percent. Wind (20 ft)........Very windy. West winds 31 to 41 mph with gusts to around 63 mph. Gusty and erratic winds expected near thunderstorms after 1200. Mixing height.......3800 ft AGL until 0900, then 6600 ft AGL. Transport winds.....West 50 to 60 mph. Smoke dispersal.....Good until 0700, then very good until 0800, then excellent. Haines Index........3 or very low potential for large plume dominated fire growth. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........59 59 59 59 59 59 50 50 50 50 50 50 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.............10 10 10 10 10 10 10 10 10 10 10 10 Chc of pcpn (%).40 40 40 40 40 40 30 30 30 30 30 30 LAL.............1 1 1 1 1 1 3 3 3 3 3 3 Temp............34 33 33 35 37 39 42 44 46 47 47 46 RH..............56 53 51 45 40 39 34 32 29 28 28 29 20 FT wind dir..W W W W W W W W W W W W 20 FT wind spd..36 38 38 40 39 39 38 38 36 33 32 32 20 FT wind gust.54 56 59 61 62 63 62 60 56 53 51 49 Mix hgt (kft)...1.9 3.2 4.4 5.6 5.9 6.2 6.5 6.5 6.5 6.6 6.2 5.9 Transp wind dir.W W W W W W W W W W W W Transp wind spd.52 54 56 59 58 55 54 53 53 52 52 51 Haines index....3 3 3 3 3 3 3 3 3 3 3 3 Vrate kt-ft/1K..87 149 215 287 296 298 306 300 301 296 281 261 SmokeDispersion.G VG E E E E E E E E E E $$ Forecaster...AD Requested by...Luke Finn Type of request...PRESCRIBED .TAG 2412828.4/BOU .DELDT 05/05/24 .FormatterVersion 2.0.0 .EMAIL luke.finn@usda.gov