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000
FNUS75 KBOU 251441
FWSBOU

Spot Forecast for Teller Lake #5 Rx...Boulder
National Weather Service Denver/Boulder CO
741 AM MST Thu Feb 25 2021

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

.DISCUSSION...Conditions will become mostly sunny through the
morning with temperatures reaching to just around freezing. Fresh
snow cover and light winds will create poor dispersion today.
Dispersion rates will improve on Friday with increasing winds by
the morning. Winds are expected to switch around to the west
between 9 and 10 am with speeds from 15 to 20 mph and gusting up
to 40 mph by the late morning and afternoon. Winds will decrease
on Friday by the early evening.

.REST OF TODAY...

Sky/weather.........Mostly cloudy until 1200, then partly
                    cloudy(50-60%) until 1400, then mostly sunny.
CWR.................12 percent decreasing to 1 percent late in the
                    morning.
Max temperature.....Around 31.
Min humidity........61%.
Wind (20 ft)........West winds 4-8 mph until 1000, then east until
                    1100, then southeast 5-6 mph until 1600, then
                    south 4-8 mph until 1700, then southwest.
Mixing height.......Below 1000 FT AGL until 0900, then 2400 ft AGL
                    until 1700, then Below 1000 FT AGL.
Transport winds.....Light winds.
Smoke dispersal.....Poor.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

TIME (MST)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........90  85  79  69  59  43  26  22  21  13
Weather cov.....SCH
Weather type....SN
Tstm cov........
CWR.............10  10  10  0   0   0   0   0   0   0
Temp............22  23  24  27  28  30  31  31  31  29
RH..............88  85  81  74  71  66  61  63  63  69
20 FT wind dir..W   W   E   SE  SE  SE  E   SE  S   SW
20 FT wind spd..3   3   4   6   4   4   4   4   4   4
20 FT wind gust.4   4       8
Mix hgt (kft)...0.9 1.6 2.0 2.3 2.4 2.2 1.9 1.6 1.5 0.5
Transp wind dir.W   W   SE  SE  S   S   W   W   W   S
Transp wind spd.5   5   6   6   5   5   6   5   6   4
Haines index....2   2   2   2   2   2   2   2   2   2
Vrate kt-ft/1K..2   3   6   7   5   4   6   3   5   1
SmokeDispersion.P   P   P   P   P   P   P   P   P   P

.TONIGHT...

Sky/weather.........Partly cloudy(30-40%).
CWR.................0 percent.
Min temperature.....Around 14.
Max humidity........100%.
Wind (20 ft)........Southwest winds 4-8 mph until 1900, then west
                    until 2100, then west 4-8 mph until 0300, then
                    variable up to 5 mph until 0400, then west 4-5
                    mph.
Mixing height.......Below 1000 FT AGL.
Transport winds.....Light winds.
Smoke dispersal.....Poor.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........15  23  35  30  33  44  52  55  51  38  36  28
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............25  20  16  14  14  15  15  16  16  15  15  15
RH..............78  92  100 100 100 100 96  92  92  96  92  88
20 FT wind dir..SW  W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..4   3   3   3   3   3   3   3   3   3   4   5
20 FT wind gust.    4   4   4   4   4   4   4   4   4       8
Mix hgt (kft)...0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.5   5   5   5   5   5   5   5   5   5   6   6
Haines index....4   4   4   4   4   4   4   4   4   4   4   4
Vrate kt-ft/1K..1   1   1   1   1   1   1   1   1   1   1   2
SmokeDispersion.P   P   P   P   P   P   P   P   P   P   P   P

$$
Forecaster...Bowen
Requested by...Michael Smith
Type of request...PRESCRIBED
.TAG 2103073.0/BOU
.DELDT 02/25/21
.FormatterVersion 1.0.26
.EMAIL smithm2@bouldercolorado.gov