548
FNUS75 KBOU 182235
FWSBOU

Spot Forecast for Pearl...Larimer County Sheriffs Office
National Weather Service Denver/Boulder CO
435 PM MDT Wed Sep 18 2024

If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...It will be mostly clear tonight with humidity recovery around
45 percent.  West winds 10-15 mph with gusts up to 28 mph.

On Thursday, it will be mostly sunny with minimum humidity around
20 percent.  Winds will be west 8-14 mph with gusts up to 20 mph until 1500,
then southwest 6-12 mph with gusts to 20 mph.

.REST OF TODAY...

Sky/weather.........Mostly sunny (10-20 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 60.
Min humidity........23 percent.
Wind (20 ft)........West winds around 18 mph with gusts to around
                    30 mph.
Mixing height.......5400 ft AGL.
Transport winds.....West around 30 mph.
Smoke dispersal.....Very good.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (MDT)      5PM
Sky (%).........15
Weather cov.....
Weather type....
Tstm cov........
CWR.............0
LAL.............1
Temp............58
RH..............24
20 FT wind dir..W
20 FT wind spd..18
20 FT wind gust.30
Mix hgt (kft)...5.4
Transp wind dir.W
Transp wind spd.30
Haines index....4
Vrate kt-ft/1K..141
SmokeDispersion.VG

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....Around 41.
Max humidity........44 percent.
Wind (20 ft)........West winds 10 to 15 mph with gusts to around 28
                    mph.
Mixing height.......4600 ft AGL until 1900. Below 1000 FT AGL after
                    2000.
Transport winds.....West 20 to 28 mph until 2000, then 15 to 20
                    mph.
Smoke dispersal.....Very good 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 (%).........16  12  4   0   0   0   0   0   0   0   0   0
Weather cov.....
Weather type....
Tstm cov........
CWR.............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............57  55  51  49  48  46  45  45  44  43  42  43
RH..............25  30  33  36  36  38  39  39  41  41  43  42
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..17  16  15  15  15  16  16  16  16  15  15  14
20 FT wind gust.28  25  24  24  24  25  25  25  25  24  24  22
Mix hgt (kft)...4.6 1.9 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.28  20  17  17  17  18  17  18  18  18  17  17
Haines index....4   4   4   4   4   4   4   4   4   4   4   4
Vrate kt-ft/1K..111 33  7   6   6   7   6   6   6   6   6   6
SmokeDispersion.VG  P   P   P   P   P   P   P   P   P   P   P

.THURSDAY...

Sky/weather.........Mostly sunny (5-15 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 63.
Min humidity........19 percent.
Wind (20 ft)........West winds 8 to 14 mph with gusts to around 22
                    mph.
Mixing height.......Below 1000 FT AGL until 0900. 7100 ft AGL after
                    1100.
Transport winds.....West 15 to 21 mph.
Smoke dispersal.....Poor until 1000, then fair until 1100, then
                    good until 1200, then very good until 1700,
                    then 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 (%).........8   7   6   5   5   6   6   7   8   9   12  15
Weather cov.....
Weather type....
Tstm cov........
CWR.............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............41  42  44  48  53  56  57  60  62  62  63  61
RH..............44  44  43  37  30  26  24  22  21  19  20  21
20 FT wind dir..W   W   W   W   W   W   W   W   W   SW  SW  S
20 FT wind spd..14  13  13  12  12  10  10  9   9   8   7   7
20 FT wind gust.22  21  21  18  18  16  16  15  15  13  12  12
Mix hgt (kft)...0.4 0.4 0.5 1.9 3.3 4.7 5.9 6.3 6.8 7.3 7.2 7.0
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.18  17  16  20  21  20  20  20  18  20  16  15
Haines index....5   5   5   5   5   5   5   5   5   5   5   5
Vrate kt-ft/1K..6   6   7   32  60  80  100 107 110 124 100 91
SmokeDispersion.P   P   P   P   F   G   VG  VG  VG  VG  VG  G

$$
Forecaster...RPK
Requested by...SGT Derek Rosenquist
Type of request...WILDFIRE
.TAG 2422609.6/BOU
.DELDT 09/18/24
.FormatterVersion 2.0.0
.EMAIL rosenqdc@co.larimer.co.us,luke.finn@usda.gov