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