683
FNUS75 KBOU 082147
FWSBOU

Spot Forecast for Barton Gulch...USFS
National Weather Service Denver/Boulder CO
247 PM MST Mon Dec 8 2025

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

.DISCUSSION...

Winds will increase Tuesday morning into Tuesday afternoon. Winds
will be around 10 to 15 mph from the west/northwest, with gusts
around 20 to 30 mph by the afternoon. The stronger winds and
decent vent rates will allow for multiple hours of good smoke
dispersal in the late morning to early afternoon. There is
potential for light snow showers late Tuesday afternoon into
Wednesday morning. Snow accumulations, if any, will be on the
lighter side. Breezy winds again on Wednesday will allow for
another few hours of good smoke dispersal in the late morning and
early afternoon.

.TUESDAY...

Sky/weather.........Partly cloudy (35-45 percent) until 1300, then
                    mostly cloudy (55-65 percent). Slight chance of
                    snow.
CWR.................5 percent.
Chance of pcpn......20 percent.
Max temperature.....Around 38.
Min humidity........56 percent.
Wind (20 ft)........West winds 9 to 14 mph. Gusts up to 22 mph in
                    the afternoon.
Mixing height.......3200 ft AGL.
Transport winds.....West 21 to 30 mph until 1700, then around 18
                    mph.
Smoke dispersal.....Poor until 1000, then good until 1500, then
                    fair until 1700, then poor.

TIME (MST)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........37  44  43  41  54  58  59  62  66
Weather cov.....SCH SCH SCH SCH SCH SCH SCH SCH SCH
Weather type....SN  SN  SN  SN  SN  SN  SN  SN  SN
Tstm cov........
CWR.............10  10  10  10  10  10  10  10  10
Chc of pcpn (%).20  20  20  20  20  20  20  20  20
Temp............25  31  35  36  37  37  36  35  33
RH..............75  65  59  56  59  58  61  65  66
20 FT wind dir..W   W   W   W   W   W   W   W   W
20 FT wind spd..9   10  12  13  14  14  14  13  13
20 FT wind gust.15  16  18  21  22  22  22  21  21
Mix hgt (kft)...2.2 2.7 2.9 3.2 3.4 3.4 2.7 2.3 2.0
Transp wind dir.W   W   W   W   W   W   W   W   W
Transp wind spd.21  25  26  29  30  29  23  21  18
Vrate kt-ft/1K..39  60  67  81  87  85  55  41  33
SmokeDispersion.P   G   G   G   G   G   F   F   P

.TUESDAY NIGHT...

Sky/weather.........Mostly cloudy (70-80 percent). Slight chance of
                    snow until 2300, then chance of snow.
CWR.................7 percent.
Chance of pcpn......30 percent.
Min temperature.....Around 26.
Max humidity........96 percent.
Wind (20 ft)........West winds 9 to 14 mph. Gusts up to 22 mph in
                    the evening then 28 mph overnight.
Mixing height.......1800 ft AGL.
Transport winds.....West 14 to 19 mph.
Smoke dispersal.....Poor.

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........69  73  74  76  77  78  78  76  75  74  74  75
Weather cov.....SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC CHC
Weather type....SN  SN  SN  SN  SN  SN  SN  SN  SN  SN  SN  SN
Tstm cov........
CWR.............10  10  10  10  10  10  10  10  10  10  10  10
Chc of pcpn (%).20  20  20  20  20  30  30  30  30  30  30  30
Temp............31  30  32  31  31  31  31  31  30  29  28  27
RH..............72  77  73  78  78  77  74  76  77  81  88  94
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..13  14  14  14  13  12  10  10  10  10  9   9
20 FT wind gust.21  22  22  22  21  18  17  21  26  28  26  25
Mix hgt (kft)...2.2 1.8 1.9 2.0 1.9 1.8 1.8 1.8 1.8 1.8 1.8 1.8
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.17  15  15  17  17  16  16  15  15  15  15  15
Vrate kt-ft/1K..33  23  24  29  28  26  25  24  23  23  23  24
SmokeDispersion.P   P   P   P   P   P   P   P   P   P   P   P

.WEDNESDAY...

Sky/weather.........Mostly cloudy (65-75 percent). Chance of snow
                    until 1100, then slight chance of snow until
                    1700.
CWR.................6 percent.
Chance of pcpn......30 percent.
Max temperature.....Around 43.
Min humidity........58 percent.
Wind (20 ft)........West winds 9 to 15 mph with gusts to around 28
                    mph.
Mixing height.......3200 ft AGL.
Transport winds.....West 15 to 24 mph.
Smoke dispersal.....Poor until 0900, then fair until 1100, then
                    good until 1500, then fair until 1700, then
                    poor.

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........73  72  70  70  70  70  68  65  63  65  66  68
Weather cov.....CHC CHC CHC CHC CHC SCH SCH SCH SCH SCH SCH
Weather type....SN  SN  SN  SN  SN  SN  SN  SN  SN  SN  SN
Tstm cov........
CWR.............10  10  10  10  10  10  10  10  10  10  10  0
Chc of pcpn (%).30  30  30  30  30  20  20  20  20  20  20  10
Temp............27  27  28  32  37  40  42  43  43  42  41  39
RH..............96  96  90  81  73  66  61  60  58  60  60  64
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..9   9   10  12  12  14  15  15  15  15  15  15
20 FT wind gust.25  25  25  26  28  22  24  24  24  24  24  24
Mix hgt (kft)...2.0 2.2 2.4 2.8 3.1 3.5 3.5 3.4 3.3 2.9 2.5 2.0
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.15  15  15  18  21  24  24  24  24  22  21  18
Vrate kt-ft/1K..26  29  31  43  58  74  73  71  70  56  43  32
SmokeDispersion.P   P   P   F   F   G   G   G   G   F   F   P

$$
Forecaster...WFO Boulder
Requested by...Preston Burns
Type of request...PRESCRIBED
.TAG 2527188.0/BOU
.DELDT 12/08/25
.FormatterVersion 2.0.0
.EMAIL preston.burns@usda.gov