Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
628 FNUS75 KBOU 191317 FWSBOU Spot Forecast for ACB Burn 24-001 Boyd Lake SP...DFPC National Weather Service Denver/Boulder CO 717 AM MDT Thu Sep 19 2024 If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...southwesterly flow aloft will continue over the area today and tonight. Mostly sunny skies and dry conditions will prevail today with winds light southeast winds. Minimum humidities will drop to around 15 percent this afternoon for a few hours with the dry airmass in place. Temperatures will be above normal seasonal normals A storm system will move into the area this weekend, with cooler temperatures, increased moisture and rain showers likely. There could also be a few thunderstorms late day Saturday. .REST OF TODAY... Sky/weather.........Sunny (0-10 percent). CWR.................0 percent. Chance of pcpn......0 percent. LAL.................1. Max temperature.....Around 83. Min humidity........15 percent. Wind (20 ft)........Variable up to 5 mph until 1000, then southeast 5 to 12 mph. Mixing height.......Below 1000 FT AGL until 0900. 7500 ft AGL after 1200. Transport winds.....West around 8 mph until 0900, then light until 1100, then south 8 to 13 mph. Smoke dispersal.....Poor until 1200, then fair until 1300, then good. Haines Index........4 or low potential for large plume dominated fire growth. TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........0 0 0 0 0 0 1 2 2 4 5 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 0 0 0 0 0 0 LAL.............1 1 1 1 1 1 1 1 1 1 1 Temp............49 54 58 65 70 74 76 80 81 81 82 RH..............51 45 39 29 24 22 19 17 16 16 15 20 FT wind dir..W SW S S SE SE SE SE SE SE SE 20 FT wind spd..2 1 3 5 6 8 8 9 9 9 9 20 FT wind gust.5 2 5 7 9 12 14 15 15 15 15 Mix hgt (kft)...0.5 0.5 1.3 2.1 3.1 5.0 6.3 7.4 7.9 7.5 7.0 Transp wind dir.W W S S S S S S S S S Transp wind spd.6 5 3 6 8 10 12 13 13 12 10 Haines index....4 4 4 4 4 4 4 4 4 4 4 Vrate kt-ft/1K..3 2 4 11 22 45 63 82 87 75 63 SmokeDispersion.P P P P P F G G G G G .TONIGHT... Sky/weather.........Mostly clear (15-25 percent). CWR.................0 percent. Chance of pcpn......0 percent. LAL.................1. Min temperature.....Around 49. Max humidity........57 percent. Wind (20 ft)........East winds 6 to 11 mph until 2000. Northwest 5 to 12 mph after 2100. Mixing height.......3100 ft AGL until 1900, then Below 1000 FT AGL. Transport winds.....East 8 to 12 mph until 2100, then north 8 to 13 mph until 0100, then 8 to 11 mph until 0300, then northwest 8 to 10 mph until 0500, then light. Smoke dispersal.....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 (%).........6 7 9 10 11 12 13 19 25 31 30 30 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 LAL.............1 1 1 1 1 1 1 1 1 1 1 1 Temp............79 76 72 65 63 61 59 57 56 53 52 51 RH..............17 20 23 31 34 36 39 40 43 48 48 51 20 FT wind dir..SE E NE N N N N N NW N NW NW 20 FT wind spd..9 7 6 6 7 8 8 8 7 6 6 6 20 FT wind gust.14 10 8 9 12 13 13 13 10 9 9 9 Mix hgt (kft)...3.1 0.5 0.6 0.6 0.6 0.6 0.5 0.4 0.3 0.4 0.4 0.6 Transp wind dir.SE E E NE N N N N N NW NW NW Transp wind spd.10 9 8 8 8 9 12 9 8 7 7 7 Haines index....4 4 4 4 4 4 4 4 4 4 4 4 Vrate kt-ft/1K..28 4 4 4 4 4 5 3 2 2 2 4 SmokeDispersion.P P P P P P P P P P P P .FRIDAY... Sky/weather.........Mostly sunny (10-20 percent). CWR.................1 percent. Chance of pcpn......0 percent. LAL.................1. Max temperature.....Around 87. Min humidity........15 percent. Wind (20 ft)........Northwest winds around 5 mph until 0900, then variable up to 5 mph until 1100, then southeast 6 to 11 mph until 1700, then around 9 mph. Mixing height.......Below 1000 FT AGL until 1000, then 3200 ft AGL until 1200, then 7700 ft AGL until 1500, then 9400 ft AGL until 1600, then 6600 ft AGL until 1700, then 3900 ft AGL. Transport winds.....Northwest 8 to 9 mph until 0800, then light until 1000, then south 8 to 13 mph until 1700, then southeast around 10 mph. Smoke dispersal.....Poor until 1200, then fair until 1300, then good until 1500, then very good until 1600, then good until 1700, then poor. Haines Index........5 or moderate potential for large plume dominated fire growth. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........25 24 18 17 17 20 23 20 13 6 5 7 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 LAL.............1 1 1 1 1 1 1 1 1 1 1 1 Temp............49 51 54 59 67 74 79 83 86 87 87 86 RH..............57 57 50 42 31 25 21 18 16 15 15 15 20 FT wind dir..NW NW W W S S S S SE SE SE SE 20 FT wind spd..5 3 3 3 3 6 7 8 9 10 10 9 20 FT wind gust.7 6 6 6 6 9 12 13 15 16 16 15 Mix hgt (kft)...0.5 0.4 0.3 0.7 1.6 3.8 6.0 7.1 8.2 9.4 6.6 3.9 Transp wind dir.NW NW W SW S S S S S S S SE Transp wind spd.7 5 3 3 5 7 9 10 12 13 12 10 Haines index....5 5 5 5 5 5 5 5 5 5 5 5 Vrate kt-ft/1K..3 2 1 2 6 23 48 64 82 103 66 35 SmokeDispersion.P P P P P P F G G VG G P $$ Forecaster...RJK Requested by...John Sanfilippo Type of request...PRESCRIBED .TAG 2422520.3/BOU .DELDT 09/19/24 .FormatterVersion 2.0.0 .EMAIL john.sanfilippo@state.co.us