####018008169#### FNUS75 KBOU 031154 FWSBOU Spot Forecast for Forsythe II Rx - Unit 44...USFS National Weather Service Denver/Boulder CO 554 AM MDT Fri May 3 2024 If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION... Isolated rain showers are possible this afternoon. Westerly winds will produce wind gusts up to 35 mph through this evening. Humidities should remain near 25-30 percent through this afternoon then recover to 90 percent overnight. .REST OF TODAY... Sky/weather.........Mostly sunny (10-20 percent) until 1300, then partly cloudy (30-40 percent). Slight chance of rain showers and thunderstorms after 1200. CWR.................5 percent. Chance of pcpn......20 percent. LAL.................1 until 1200, then 2 until 1500, then 3. Max temperature.....Around 59. Min humidity........25 percent. Wind (20 ft)........West winds 10 to 18 mph with gusts to around 30 mph until 1700, then around 13 mph with gusts to around 21 mph. Gusty and erratic winds expected near thunderstorms after 1200. Mixing height.......Below 1000 FT AGL until 0800, then 2900 ft AGL until 1000, then 7200 ft AGL until 1200, then 10100 ft AGL until 1700, then 6300 ft AGL. Transport winds.....West 19 to 24 mph until 0900, then 30 to 36 mph until 1700, then around 23 mph. Smoke dispersal.....Poor until 0900, then good until 1000, then excellent until 1700, then very good. 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 (%).........13 10 10 14 20 24 28 40 40 44 46 Weather cov..... SCH SCH SCH SCH SCH SCH Weather type.... RW RW RW RW RW RW Tstm cov........ SCH SCH SCH SCH SCH SCH CWR.............0 0 0 0 0 0 10 10 10 10 10 Chc of pcpn (%).0 0 0 10 10 10 20 20 20 20 20 LAL.............1 1 1 1 1 2 2 2 3 3 3 Temp............38 43 48 52 54 56 57 57 58 55 53 RH..............45 39 34 30 28 26 25 27 26 29 34 20 FT wind dir..SW W W W W W W W W W W 20 FT wind spd..10 13 15 17 18 18 17 16 16 14 13 20 FT wind gust.16 21 24 28 30 30 28 25 25 22 21 Mix hgt (kft)...0.6 1.4 3.4 6.0 7.3 8.7 9.4 10 10 9.5 6.3 Transp wind dir.W W W W W W W W W SW W Transp wind spd.20 22 31 35 33 35 36 33 32 30 23 Haines index....5 5 5 5 5 5 5 5 5 5 5 Vrate kt-ft/1K..10 26 92 181 211 260 290 291 284 248 126 SmokeDispersion.P P G E E E E E E E VG .TONIGHT... Sky/weather.........Partly cloudy (45-55 percent) until 1900, then mostly cloudy (55-65 percent). Chance of rain showers, slight chance of thunderstorms and snow showers until 2400. CWR.................7 percent. Chance of pcpn......30 percent. LAL.................3 until 2100, then 1. Min temperature.....Around 30. Max humidity........92 percent. Wind (20 ft)........West winds around 12 mph until 1900, then north until 2000, then south around 6 mph until 2100, then around 5 mph until 2300, then variable up to 5 mph. Gusty and erratic winds expected near thunderstorms until 2100. Mixing height.......2200 ft AGL until 2000, then 1000 ft AGL until 0300, then Below 1000 FT AGL until 0400, then 1100 ft AGL. Transport winds.....West 8 to 15 mph until 2100, then southwest 8 to 12 mph until 2400, then southeast 8 to 9 mph until 0200, then north 8 to 10 mph until 0400, then light until 0500, then south around 8 mph. Smoke dispersal.....Fair until 1900, then poor. Haines Index........4 or low potential for large plume dominated fire growth. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........50 56 56 57 57 56 52 57 62 64 66 65 Weather cov.....SCH CHC SCH SCH Weather type....RW RW RS RS Tstm cov........SCH SCH SCH CWR.............10 10 10 10 10 0 0 0 0 0 0 0 Chc of pcpn (%).20 30 20 20 10 10 0 0 0 0 0 0 LAL.............3 3 3 1 1 1 1 1 1 1 1 1 Temp............50 45 39 36 35 34 33 32 31 30 30 30 RH..............42 53 69 77 77 83 86 90 89 91 91 91 20 FT wind dir..W N S S S SW S S S SE S S 20 FT wind spd..12 7 6 3 3 2 3 3 2 2 2 3 20 FT wind gust.18 12 9 6 6 3 6 6 3 3 3 6 Mix hgt (kft)...3.4 2.0 1.2 1.3 1.1 1.3 1.3 1.0 1.0 0.8 1.1 1.3 Transp wind dir.W NW W SW SW SW SE SE N N N S Transp wind spd.15 9 8 10 9 8 7 6 7 7 7 8 Haines index....4 4 4 4 4 4 4 4 4 4 4 4 Vrate kt-ft/1K..45 16 8 12 9 9 8 5 6 5 7 9 SmokeDispersion.F P P P P P P P P P P P .SATURDAY... Sky/weather.........Mostly cloudy (55-65 percent) until 1000, then partly cloudy (40-50 percent) until 1200, then mostly cloudy (55-65 percent). Chance of rain showers and slight chance of thunderstorms after 1200. CWR.................1 percent increasing to 19 percent in the afternoon. Chance of pcpn......30 percent. LAL.................1 until 1200, then 2 until 1500, then 3. Max temperature.....Around 54. Min humidity........43 percent. Wind (20 ft)........Southeast winds 5 to 8 mph until 1200, then east 5 to 12 mph until 1700, then southeast. Gusty and erratic winds expected near thunderstorms after 1200. Mixing height.......3400 ft AGL. Transport winds.....South 8 to 12 mph. Smoke dispersal.....Poor. Haines Index........2 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 (%).........71 68 60 51 47 45 55 55 55 55 58 62 Weather cov..... CHC CHC CHC CHC CHC CHC Weather type.... RW RW RW RW RW RW Tstm cov........ SCH SCH SCH SCH SCH SCH CWR.............0 0 0 0 0 0 20 20 20 20 20 20 Chc of pcpn (%).0 0 0 0 0 0 30 30 30 30 30 30 LAL.............1 1 1 1 1 1 2 2 2 3 3 3 Temp............30 31 33 35 39 44 48 51 53 54 54 53 RH..............92 88 85 78 70 60 51 46 44 43 45 46 20 FT wind dir..SE SE SE SE SE SE E E E E SE SE 20 FT wind spd..5 5 6 6 6 7 7 7 7 7 7 7 20 FT wind gust.6 6 7 9 12 12 12 13 15 15 15 15 Mix hgt (kft)...1.2 1.4 1.5 1.6 2.2 2.8 3.4 3.5 3.6 3.7 3.0 2.2 Transp wind dir.S S S S S S S S SE SE SE S Transp wind spd.8 8 8 8 8 8 8 8 9 9 10 10 Haines index....2 2 2 2 2 2 2 2 2 2 2 2 Vrate kt-ft/1K..9 10 11 11 16 20 24 26 28 30 26 21 SmokeDispersion.P P P P P P P P P P P P $$ Forecaster...AD Requested by...Luke Finn Type of request...PRESCRIBED .TAG 2412828.2/BOU .DELDT 05/03/24 .FormatterVersion 2.0.0 .EMAIL luke.finn@usda.gov