485
FNUS75 KBOU 102203
FWSBOU

Spot Forecast for Indiana Gulch RX...USFS
National Weather Service Denver/Boulder CO
303 PM MST Wed Dec 10 2025

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

.DISCUSSION...

The gusty NW winds this afternoon will continue into the late
evening. Winds will weaken to 15 to 25mph overnight, with gusts
around 30 to 35mph. NW winds will stay around 15 to 25mph for
tomorrow afternoon, with gusts around 30 to 40mph. Snow chances
will end this afternoon, with a dry forecast for this evening and
Thursday. The breezy winds and decent vent rates will allow for a
couple of hours of good smoke dispersal in the early afternoon
Thursday.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (50-60 percent) until 1700, then
                    partly cloudy (45-55 percent). Chance of snow
                    until 1700. Patchy blowing snow.
CWR.................7 percent.
Chance of pcpn......30 percent.
Chance of thunder...0 percent.
Max temperature.....Around 34.
Min humidity........74 percent.
Wind (20 ft)........Breezy. Northwest winds 22 to 30 mph with gusts
                    to around 40 mph.
Mixing height.......1500 ft AGL until 1700, then Below 1000 FT AGL.
Transport winds.....Northwest 29 to 36 mph.
Smoke dispersal.....Fair until 1600. Poor after 1700.

TIME (MST)      3PM 4PM 5PM
Sky (%).........54  54  48
Weather cov.....CHC CHC PTY
Weather type....SN  SN  BSN
Tstm cov........
CWR.............10  10  0
Chc of pcpn (%).30  30  0
Chc of thdr (%).0   0   0
Temp............33  32  31
RH..............74  76  78
20 FT wind dir..NW  NW  NW
20 FT wind spd..26  26  25
20 FT wind gust.40  38  38
Mix hgt (kft)...1.5 1.1 0.8
Transp wind dir.NW  NW  NW
Transp wind spd.36  32  29
Vrate kt-ft/1K..46  32  21
SmokeDispersion.F   P   P

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent). Patchy blowing
                    snow.
CWR.................1 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 25.
Max humidity........80 percent.
Wind (20 ft)........Breezy. Northwest winds 17 to 25 mph with gusts
                    to around 38 mph.
Mixing height.......Below 1000 FT AGL.
Transport winds.....Northwest 22 to 30 mph.
Smoke dispersal.....Poor.

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........44  38  40  34  32  30  28  25  30  31  30  37
Weather cov.....PTY PTY PTY PTY PTY PTY PTY PTY PTY PTY PTY PTY
Weather type....BSN BSN BSN BSN BSN BSN BSN BSN BSN BSN BSN BSN
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............31  30  30  29  30  30  29  29  28  27  27  26
RH..............78  80  80  80  76  76  76  76  75  74  74  74
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  W   NW
20 FT wind spd..25  24  24  24  23  22  21  21  20  18  18  17
20 FT wind gust.38  37  37  37  35  35  33  33  31  30  30  28
Mix hgt (kft)...0.7 0.5 0.5 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  W
Transp wind spd.29  30  29  30  29  28  26  24  23  22  22  22
Vrate kt-ft/1K..18  14  12  15  12  11  11  10  9   9   9   10
SmokeDispersion.P   P   P   P   P   P   P   P   P   P   P   P

.THURSDAY...

Sky/weather.........Partly cloudy (30-40 percent) until 1000, then
                    mostly sunny (20-30 percent) until 1600, then
                    partly cloudy (20-30 percent). Patchy blowing
                    snow until 1200.
CWR.................1 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 37.
Min humidity........49 percent.
Wind (20 ft)........Northwest winds 15 to 23 mph with gusts to
                    around 33 mph.
Mixing height.......Below 1000 FT AGL until 0900, then 1900 ft AGL
                    until 1700, then Below 1000 FT AGL.
Transport winds.....Northwest 23 to 29 mph until 1000, then 35 to
                    40 mph until 1600, then 26 to 31 mph.
Smoke dispersal.....Poor until 1100, then fair until 1200, then
                    good until 1400, then fair until 1600, then
                    poor.

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........37  36  37  29  23  20  22  24  24  25  27  26
Weather cov.....PTY PTY PTY PTY PTY PTY
Weather type....BSN BSN BSN BSN BSN BSN
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............27  27  26  27  30  32  35  35  35  36  34  31
RH..............67  67  69  71  69  63  57  55  53  49  52  53
20 FT wind dir..NW  NW  W   W   W   W   W   NW  NW  NW  NW  NW
20 FT wind spd..17  17  17  17  18  18  20  21  21  20  20  18
20 FT wind gust.28  28  28  28  30  30  31  33  33  31  31  31
Mix hgt (kft)...0.5 0.5 0.7 1.0 1.3 1.7 1.9 1.9 1.8 1.4 1.0 0.8
Transp wind dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.23  23  24  29  35  38  38  39  37  35  30  26
Vrate kt-ft/1K..10  10  14  25  38  55  62  66  57  41  27  19
SmokeDispersion.P   P   P   P   P   F   G   G   F   F   P   P

$$
Forecaster...Pettett
Requested by...Casey Gorsett
Type of request...PRESCRIBED
.TAG 2527319.1/BOU
.DELDT 12/10/25
.FormatterVersion 2.0.0
.EMAIL cgorsett@blm.gov