581 FNUS75 KBOU 211209 FWSBOU Spot Forecast for Deer Mountain Piles...NPS National Weather Service Denver/Boulder CO 509 AM MST Fri Feb 21 2025 If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...It will be mostly cloudy with a chance of snow until 0800, then skies will become partly cloudy by 1100. Minimum humidity will be around 40 percent. Winds will be northwest at 5 mph until 1000, then light and variable at 5 mph. Smoke dispersal will be poor all day. .TODAY... Sky/weather.........Mostly cloudy (60-70 percent) until 1100, then partly cloudy (30-40 percent) until 1700, then mostly sunny (15-25 percent). Chance of snow until 0800, then slight chance of snow until 1100. CWR.................7 percent. Chance of pcpn......30 percent. Chance of thunder...1 percent. Max temperature.....Around 38. Min humidity........40 percent. Wind (20 ft)........Northwest winds around 5 mph until 1000, then variable up to 5 mph until 1700, then west around 5 mph. Mixing height.......3500 ft AGL. Transport winds.....Northwest 8 to 13 mph until 1700, then west. Smoke dispersal.....Poor. TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........75 71 66 57 53 47 44 40 35 31 27 21 Weather cov.....CHC CHC SCH SCH SCH Weather type....SN SN SN SN SN Tstm cov........ CWR.............10 10 10 10 10 0 0 0 0 0 0 0 Chc of pcpn (%).30 30 20 20 20 10 10 10 10 10 10 0 Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............19 19 21 24 27 31 35 37 38 37 35 32 RH..............77 74 68 65 57 49 45 42 40 42 45 49 20 FT wind dir..NW NW NW N N NE N N NW NW W W 20 FT wind spd..3 3 3 3 2 2 2 2 2 2 3 5 20 FT wind gust.6 6 6 6 6 7 7 7 7 7 7 7 Mix hgt (kft)...1.5 1.5 1.5 2.0 3.1 3.4 3.7 3.7 4.0 4.1 3.6 2.0 Transp wind dir.NW NW NW N N NW NW NW NW NW W W Transp wind spd.8 9 9 8 9 8 9 9 9 10 12 13 Vrate kt-ft/1K..10 12 12 14 25 24 30 30 32 37 36 22 SmokeDispersion.P P P P P P P P P P P P .TONIGHT... Sky/weather.........Mostly clear (5-15 percent). CWR.................1 percent. Chance of pcpn......0 percent. Chance of thunder...1 percent. Min temperature.....Around 19. Max humidity........62 percent. Wind (20 ft)........West winds 6 to 14 mph. Gusts up to 22 mph overnight. Mixing height.......1500 ft AGL. Transport winds.....West 13 to 22 mph until 0400, then 24 to 29 mph. Smoke dispersal.....Poor. TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........17 15 10 8 8 7 7 7 6 7 6 8 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............28 25 22 21 21 22 22 21 20 20 19 23 RH..............53 57 62 62 62 54 54 56 56 54 54 43 20 FT wind dir..W W W W W W W W W W W W 20 FT wind spd..6 8 9 10 12 12 12 13 13 13 13 14 20 FT wind gust.9 9 13 13 15 16 18 18 21 21 21 22 Mix hgt (kft)...1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 Transp wind dir.W W W W W W W W W W W W Transp wind spd.13 14 17 17 18 18 20 21 21 22 24 28 Vrate kt-ft/1K..16 18 22 22 23 23 25 26 26 28 31 35 SmokeDispersion.P P P P P P P P P P P P .SATURDAY... Sky/weather.........Mostly sunny (10-20 percent) until 1500, then partly cloudy (30-40 percent). CWR.................1 percent. Chance of pcpn......0 percent. Chance of thunder...2 percent. Max temperature.....Around 43. Min humidity........29 percent. Wind (20 ft)........West winds 10 to 15 mph. Gusts up to 22 mph in the morning and early afternoon then 31 mph late in the afternoon. Mixing height.......3000 ft AGL. Transport winds.....West 21 to 26 mph. Smoke dispersal.....Poor until 1000, then fair until 1300, then good until 1500, then fair until 1700, then poor. TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........8 7 7 7 9 12 13 16 20 28 38 41 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............24 26 28 32 37 40 42 43 43 42 40 37 RH..............41 40 38 35 31 30 29 30 31 32 33 36 20 FT wind dir..W W W W W W W W W W W W 20 FT wind spd..14 14 14 14 13 13 13 13 13 13 12 10 20 FT wind gust.22 22 22 22 21 21 21 21 21 21 18 31 Mix hgt (kft)...1.5 1.4 1.4 1.8 2.2 2.6 2.9 3.2 3.6 2.9 2.2 1.6 Transp wind dir.W W W W W W W W W W W W Transp wind spd.25 24 22 22 23 23 23 24 24 24 23 23 Vrate kt-ft/1K..32 30 27 35 44 52 60 67 75 60 45 31 SmokeDispersion.P P P P F F F G G F F P $$ Forecaster...RPK Requested by...Cody Milihram Type of request...PRESCRIBED .TAG 2503051.4/BOU .DELDT 02/21/25 .FormatterVersion 2.0.0 .EMAIL cmilihram@nps.gov