Spot Forecast
Issued by NWS Denver/Boulder, CO

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FNUS75 KBOU 191001
FWSBOU

Spot Forecast for Magic Feather Handpiles...USFS
National Weather Service Denver/Boulder CO
401 AM MDT Tue Mar 19 2024

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

.DISCUSSION...West winds will prevail today, turning northwesterly
this afternoon at 8 to 14 mph. Appears the burn area may be
sheltered from west winds, so they may end up weaker than
forecast. There should be just enough wind and mixing to push
smoke dispersion in the fair category for a couple hours this
afternoon.

.REST OF TODAY...

Sky/weather.........Mostly sunny.
CWR.................1 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 49.
Min humidity........40%.
Wind (20 ft)........West winds 8-14 mph until 1400, then northwest
                    8-14 mph.
Mixing height.......Below 1000 FT AGL until 1100, then 3000 ft AGL.
Transport winds.....West 12-18 mph.
Smoke dispersal.....Poor until 1300, then fair until 1500, then
                    poor.
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 (%).........4   3   3   3   2   2   5   7   9   16  23
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............29  31  36  40  43  46  47  48  48  49  47
RH..............62  60  57  52  47  42  42  40  40  41  43
20 FT wind dir..W   W   W   W   W   W   W   NW  NW  NW  NW
20 FT wind spd..8   9   9   8   7   6   6   7   7   7   6
20 FT wind gust.14  14  14  13  10  9   10  10  12  10  10
Mix hgt (kft)...0.5 0.5 0.5 0.8 1.8 2.8 3.5 3.7 3.1 2.8 1.4
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.18  17  15  15  14  14  15  15  13  13  12
Haines index....3   3   3   3   3   3   3   3   3   3   3
Vrate kt-ft/1K..9   8   7   10  22  34  46  48  34  31  14
SmokeDispersion.P   P   P   P   P   P   F   F   P   P   P

.TONIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 26.
Max humidity........72%.
Wind (20 ft)........West winds 7-13 mph.
Mixing height.......Below 1000 FT AGL.
Transport winds.....West 10-15 mph.
Smoke dispersal.....Poor.
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 (%).........30  26  22  18  18  18  18  16  15  13  12  10
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............46  42  38  37  35  35  33  32  32  30  29  28
RH..............46  50  57  57  60  57  57  60  60  62  64  64
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..7   7   7   8   7   7   7   6   6   7   7   7
20 FT wind gust.10  10  12  12  12  10  10  10  10  10  10  10
Mix hgt (kft)...0.7 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.5 0.5 0.5
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.10  13  14  14  13  13  13  12  13  12  15  13
Haines index....3   3   3   3   3   3   3   3   3   3   3   3
Vrate kt-ft/1K..6   6   6   7   6   6   6   6   6   5   7   6
SmokeDispersion.P   P   P   P   P   P   P   P   P   P   P   P

.WEDNESDAY...

Sky/weather.........Mostly sunny.
CWR.................2 percent.
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 47.
Min humidity........39%.
Wind (20 ft)........West winds 6-12 mph.
Mixing height.......Below 1000 FT AGL until 1000, then 4400 ft AGL.
Transport winds.....West 9-15 mph.
Smoke dispersal.....Poor until 1400, then fair until 1700, then
                    poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5   8   10  13  16  18  21  21  21  22  22  22
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............28  27  29  33  39  42  44  46  47  47  46  46
RH..............64  72  69  61  51  45  43  40  39  41  41  42
20 FT wind dir..W   W   W   W   SW  W   SW  W   W   W   W   W
20 FT wind spd..7   6   6   6   5   5   5   6   6   7   8   8
20 FT wind gust.12  9   9   9   7   7   7   9   9   12  13  13
Mix hgt (kft)...0.5 0.5 0.5 0.5 1.7 2.8 3.9 4.4 5.0 5.5 4.2 2.8
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.15  15  15  15  13  12  9   10  10  12  12  13
Haines index....3   3   3   3   3   3   3   3   3   3   3   3
Vrate kt-ft/1K..7   7   7   7   19  27  31  38  46  55  43  30
SmokeDispersion.P   P   P   P   P   P   P   P   F   F   F   P

$$
Forecaster...Meier
Requested by...Evan Gover
Type of request...PRESCRIBED
.TAG 2406490.1/BOU
.DELDT 03/19/24
.FormatterVersion 1.0.26
.EMAIL evan.gover@usda.gov


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