219
FNUS75 KBOU 121602
FWSBOU

Spot Forecast for arsenaql piles...USFWS
National Weather Service Denver/Boulder CO
902 AM MST Wed Feb 12 2025

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

.DISCUSSION...Cold temperatures and light winds are forecast
today. Accumulating snow has come to an end, but there is the
chance for some flurries or very light snow showers through the
rest of the day today. There should be a mix of sun and clouds
through the day. Smoke dispersal will be poor.

Below zero temperatures are likely tonight, with forecast lows in
the negative single digits. Tomorrow should be warmer as the cold
air scours out of the Denver metro. Winds should be a little
steadier out of the south or southeast, but smoke dispersal will
remain poor with very shallow mixing heights.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (75-85 percent). Chance of snow
                    until 1700.
CWR.................4 percent.
Chance of pcpn......30 percent.
Chance of thunder...0 percent.
Max temperature.....Around 12.
Min humidity........66 percent.
Wind (20 ft)........North winds 5 to 10 mph.
Mixing height.......3400 ft AGL.
Transport winds.....North 8 to 10 mph until 1200, then northeast
until 1500, then east 8 to 10 mph.
Smoke dispersal.....Poor.

TIME (MST)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........86  87  86  84  81  77  74  78  73
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....SN  SN  SN  SN  SN  SN  SN  SN
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0
Chc of pcpn (%).30  30  30  30  30  30  30  30  10
Chc of thdr (%).0   0   0   0   0   0   0   0   0
Temp............5   6   7   7   8   9   11  10  9
RH..............77  76  75  74  72  72  66  66  69
20 FT wind dir..N   NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..6   6   7   6   6   7   7   6   6
20 FT wind gust.9   9   12  9   9   12  12  9   9
Mix hgt (kft)...2.6 3.2 3.3 3.4 3.4 3.4 3.3 3.0 2.9
Transp wind dir.N   N   N   N   NE  NE  NE  E   E
Transp wind spd.8   7   7   7   7   7   8   7   7
Vrate kt-ft/1K..18  19  20  21  20  21  23  18  17
SmokeDispersion.P   P   P   P   P   P   P   P   P

.TONIGHT...

Sky/weather.........Mostly cloudy (55-65 percent) until 2000, then
                    partly cloudy (25-35 percent).
CWR.................2 percent.
Chance of pcpn......10 percent.
Chance of thunder...0 percent.
Min temperature.....Around 3 below.
Max humidity........100 percent.
Wind (20 ft)........East winds around 6 mph until 1900. South 5 to
                    10 mph after 2100.
Mixing height.......Below 1000 FT AGL until 1900, then 1000 ft AGL
                    until 2000, then Below 1000 FT AGL.
Transport winds.....East 8 to 9 mph until 2000, then southeast
                    until 2200, then light until 2300, then south 8
                    to 11 mph until 0100, then 8 to 10 mph until
                    0300, then south 8 to 10 mph.
Smoke dispersal.....Poor.

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........62  56  45  40  36  35  23  17  14  13  12  12
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).10  10  0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............7   5   3   1   -1  -1  -1  -1  -1  -1  -1  -1
RH..............72  79  87  95  100 100 100 100 95  91  91  87
20 FT wind dir..E   E   SE  S   S   S   S   S   S   S   S   S
20 FT wind spd..6   5   5   5   5   5   6   6   6   6   6   6
20 FT wind gust.9   7   7   7   7   7   9   9   9   9   9   9
Mix hgt (kft)...0.6 1.0 0.4 0.4 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.E   SE  SE  S   S   S   S   S   S   S   S   S
Transp wind spd.6   6   6   6   7   8   8   7   7   6   7   8
Vrate kt-ft/1K..3   5   2   2   3   3   3   3   2   2   2   3
SmokeDispersion.P   P   P   P   P   P   P   P   P   P   P   P

.THURSDAY...

Sky/weather.........Mostly sunny (15-25 percent) until 1100, then
                    partly cloudy (30-40 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 37.
Min humidity........28 percent.
Wind (20 ft)........South winds 5 to 10 mph until 1200, then
southeast until 1500, then northeast around
5 mph.
Mixing height.......Below 1000 FT AGL until 1100, then 1400 ft AGL
                    until 1600, then Below 1000 FT AGL.
Transport winds.....South 8 to 11 mph until 1400, then southeast
                    until 1600, then northeast around 8 mph until
                    1700, then light.
Smoke dispersal.....Poor.

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........12  13  15  12  24  32  32  29  27  29  36  42
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
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............0   2   5   12  18  27  33  36  36  36  35  33
RH..............79  72  69  55  48  35  30  28  30  33  35  39
20 FT wind dir..S   S   S   S   S   S   SE  SE  E   NE  NE  N
20 FT wind spd..6   6   6   6   6   6   5   5   6   6   5   5
20 FT wind gust.9   9   9   9   9   9   7   7   9   9   7   7
Mix hgt (kft)...0.4 0.4 0.4 0.6 0.9 1.2 1.3 1.3 1.4 1.1 0.8 0.4
Transp wind dir.S   S   S   S   S   S   S   SE  SE  E   NE  N
Transp wind spd.9   9   8   9   9   8   8   9   9   8   8   7
Vrate kt-ft/1K..3   3   3   4   7   8   9   10  12  8   5   3
SmokeDispersion.P   P   P   P   P   P   P   P   P   P   P   P

$$
Forecaster...Hiris
Requested by...scott whiteaker
Type of request...PRESCRIBED
.TAG 2502869.0/BOU
.DELDT 02/12/25
.FormatterVersion 2.0.0
.EMAIL scott_whiteaker@fws.gov