Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
501
FNUS75 KBOU 261119
FWSBOU
Spot Forecast for Forsythe II - Unit 44...USFS
National Weather Service Denver/Boulder CO
519 AM MDT Sun May 26 2024
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION... Westerly winds are expected to increase slightly
through mid morning with a 30% chance of gusts exceeding 45 mph.
There is a 10% chance gusts may be greater than 55 mph. Winds will
begin to decrease around 1200. Chances for gusts greater than 40
mph become near zero by 1400. The westerly direction is expected
to prevail through the day.
.REST OF TODAY...
Sky/weather.........Partly cloudy (25-35 percent) until 0900, then
mostly sunny (20-30 percent) until 1000, then
partly cloudy (25-35 percent) until 1700, then
mostly sunny (10-20 percent).
CWR.................3 percent.
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 60.
Min humidity........24 percent.
Wind (20 ft)........West winds 19 to 27 mph with gusts to around 36
mph until 1400, then 12 to 20 mph with gusts to
around 28 mph.
Mixing height.......6000 ft AGL.
Transport winds.....West 29 to 36 mph.
Smoke dispersal.....Fair until 0800, then good until 1100, then
very good until 1400, then excellent.
Haines Index........3 or very low potential for large plume
dominated fire growth.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........31 28 25 26 28 29 30 31 32 26 17
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).10 0 0 10 10 10 10 10 10 10 10
LAL.............1 1 1 1 1 1 1 1 1 1 1
Temp............41 43 46 49 52 54 56 58 59 60 60
RH..............62 55 47 42 38 32 28 28 26 25 28
20 FT wind dir..W W W W W W W W W W W
20 FT wind spd..22 23 24 24 24 23 21 17 17 16 14
20 FT wind gust.36 35 36 36 36 36 33 28 28 26 22
Mix hgt (kft)...2.0 2.1 2.6 3.3 3.6 4.2 5.0 5.6 6.0 6.0 6.1
Transp wind dir.W W W W W W W W W W W
Transp wind spd.31 36 33 33 33 32 30 32 29 30 29
Haines index....3 3 3 3 3 3 3 3 3 3 3
Vrate kt-ft/1K..53 67 77 97 104 118 130 156 151 157 153
SmokeDispersion.F G G G VG VG VG E E E E
.TONIGHT...
Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 39.
Max humidity........64 percent.
Wind (20 ft)........West winds 7 to 13 mph. Gusts up to 20 mph
early in the evening.
Mixing height.......5100 ft AGL until 2000. Below 1000 FT AGL after
2100.
Transport winds.....West 23 to 28 mph until 2000, then 13 to 18
mph.
Smoke dispersal.....Very good until 1900. Poor after 0500.
Haines Index........3 or very low potential for large plume
dominated fire growth.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........8 8 10 10 11 12 13 13 14 14 14 14
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............59 56 52 48 47 46 45 44 43 42 41 40
RH..............30 34 39 47 49 49 53 56 58 60 60 62
20 FT wind dir..W W W W W W W W W W W W
20 FT wind spd..13 12 9 8 8 7 7 6 6 7 7 7
20 FT wind gust.20 18 16 14 13 12 12 9 9 12 12 12
Mix hgt (kft)...5.9 5.1 1.1 0.8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.26 25 16 17 16 16 15 15 16 16 15 13
Haines index....3 3 3 3 3 3 3 3 3 3 3 3
Vrate kt-ft/1K..136 113 16 12 11 10 9 9 9 9 8 8
SmokeDispersion.VG VG P P P P P P P P P P
.MEMORIAL DAY...
Sky/weather.........Mostly sunny (10-20 percent).
CWR.................3 percent.
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 68.
Min humidity........17 percent.
Wind (20 ft)........West winds 5 to 13 mph until 0900, then around
5 mph until 1100, then northwest until 1300,
then variable up to 5 mph until 1400, then
northwest 5 to 7 mph.
Mixing height.......Below 1000 FT AGL until 0700. 9400 ft AGL after
1000.
Transport winds.....West 12 to 20 mph.
Smoke dispersal.....Poor until 0900, then fair until 1000, then
good until 1200, then very good until 1500,
then excellent until 1600, then very good.
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 (%).........20 17 13 10 10 10 10 10 11 11 12 14
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 10 10 10 10 10 10
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............39 42 46 51 55 60 63 65 66 67 68 68
RH..............64 57 51 42 37 29 21 20 20 21 21 22
20 FT wind dir..W W W W W NW W W NW NW NW NW
20 FT wind spd..9 6 6 3 3 3 3 3 5 6 6 5
20 FT wind gust.15 9 9 6 6 6 6 6 7 9 9 7
Mix hgt (kft)...0.7 1.9 3.2 4.4 5.6 6.8 8.0 8.7 9.3 10 9.4 8.7
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.12 13 14 15 15 16 16 17 18 20 17 16
Haines index....5 5 5 5 5 5 5 5 5 5 5 5
Vrate kt-ft/1K..7 21 38 58 75 93 112 130 149 170 144 119
SmokeDispersion.P P P F G G VG VG VG E VG VG
$$
Forecaster...Bonner
Requested by...Ed LeBlanc
Type of request...PRESCRIBED
.TAG 2414199.9/BOU
.DELDT 05/26/24
.FormatterVersion 2.0.0
.EMAIL Edward.leblanc@usda.gov