Spot Forecast
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
747
FNUS75 KBOU 100115
FWSBOU
Spot Forecast for Indiana Gulch RX...USFS
National Weather Service Denver/Boulder CO
615 PM MST Tue Dec 9 2025
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...Light snow showers will be possible through much of tonight
and into early tomorrow morning. Snow chances will decrease late
Wednesday morning and will remain low through Thursday. Snow
accumulations, if any, are expected to be light. Winds will remain
elevated overnight, with occasional gusts around 40mph. Tomorrow
afternoon, winds will be around 25 to 30mph, gusting around 45mph.
Slightly higher mixing heights tomorrow and gusty winds will
allow for multiple hours of fair smoke dispersal late Wednesday
morning and early Wednesday afternoon, with at least a few hours
of good dispersal likely. Winds will weaken Wednesday evening,
before strengthening Thursday morning, with gusts around 35mph
from the west/northwest by Thursday afternoon.
Note - updated based on discussion of observed weather conditions
at the site from today.
.TONIGHT...
Sky/weather.........Mostly cloudy (65-75 percent). Patchy blowing
snow. Slight chance of snow until 2300. Chance
of snow after 2300 until 0500, then slight
chance of snow.
CWR.................7 percent.
Chance of pcpn......30 percent.
Chance of thunder...0 percent.
Min temperature.....Around 23.
Max humidity........100 percent.
Wind (20 ft)........Breezy. Northwest winds 21 to 29 mph with gusts
to around 43 mph.
Mixing height.......Below 1000 FT AGL.
Transport winds.....Northwest 24 to 29 mph.
Smoke dispersal.....Poor.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........67 67 70 72 73 74 69 70 71 67 65 64
Weather cov.....SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC SCH
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 20
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0
Temp............29 28 28 29 28 28 28 28 27 27 27 26
RH..............78 81 81 81 81 85 85 85 88 88 85 88
20 FT wind dir..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT wind spd..26 26 26 26 25 25 24 24 23 23 23 23
20 FT wind gust.40 40 41 41 41 43 41 41 39 39 39 39
Mix hgt (kft)...0.8 0.6 0.5 0.7 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.7
Transp wind dir.NW NW NW NW NW NW NW NW NW NW NW NW
Transp wind spd.29 28 26 26 25 25 24 25 25 24 25 24
Vrate kt-ft/1K..20 13 11 14 11 11 10 11 11 10 13 14
SmokeDispersion.P P P P P P P P P P P P
.WEDNESDAY...
Sky/weather.........Mostly cloudy (55-65 percent) until 1000, then
partly cloudy (45-55 percent). Slight chance of
snow until 1100. Patchy blowing snow.
CWR.................5 percent.
Chance of pcpn......20 percent.
Chance of thunder...0 percent.
Max temperature.....Around 34.
Min humidity........73 percent.
Wind (20 ft)........Breezy. Northwest winds 21 to 29 mph with gusts
to around 45 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 2000 ft AGL
until 1700, then Below 1000 FT AGL.
Transport winds.....Northwest 24 to 33 mph until 1000, then 32 to
39 mph until 1700, then around 29 mph.
Smoke dispersal.....Poor until 0900, then fair until 1100, then
good until 1500, then fair until 1600, then
poor.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........66 65 60 51 48 47 46 47 48 46 46 49
Weather cov.....SCH SCH SCH SCH SCH PTY PTY PTY PTY PTY PTY PTY
Weather type....SN SN SN SN SN BSN BSN BSN BSN BSN BSN BSN
Tstm cov........
CWR.............10 10 10 10 10 0 0 0 0 0 0 0
Chc of pcpn (%).20 20 20 20 20 10 10 10 10 10 10 0
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0
Temp............25 25 24 25 27 29 31 32 33 34 32 32
RH..............91 91 100 100 96 88 83 80 78 73 74 76
20 FT wind dir..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT wind spd..23 23 23 23 24 24 25 25 26 26 25 25
20 FT wind gust.39 39 39 39 41 41 43 44 45 45 44 43
Mix hgt (kft)...0.5 0.6 1.3 1.7 1.8 2.0 2.0 2.0 2.0 1.7 1.2 0.9
Transp wind dir.NW NW NW NW NW NW NW NW NW NW NW NW
Transp wind spd.24 25 30 33 37 39 38 37 38 35 32 29
Vrate kt-ft/1K..11 13 34 48 59 68 68 66 65 50 32 22
SmokeDispersion.P P P F F G G G G F P P
.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy (35-45 percent). Patchy blowing
snow until 0500.
CWR.................1 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 23.
Max humidity........80 percent.
Wind (20 ft)........Breezy. Northwest winds 17 to 25 mph with gusts
to around 41 mph.
Mixing height.......1000 ft AGL until 1900, then Below 1000 FT AGL.
Transport winds.....Northwest 21 to 30 mph until 0400, then 16 to
21 mph.
Smoke dispersal.....Poor.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........40 41 49 40 41 41 38 36 33 34 34 35
Weather cov.....PTY PTY PTY PTY PTY PTY PTY PTY PTY PTY PTY
Weather type....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 31 31 30 29 29 29 28 27 26 26 25
RH..............77 79 79 80 76 77 75 78 77 76 78 76
20 FT wind dir..NW NW NW NW NW NW NW NW NW NW W W
20 FT wind spd..25 24 24 24 23 22 21 21 20 18 18 17
20 FT wind gust.41 40 39 37 36 35 35 33 31 30 30 28
Mix hgt (kft)...1.0 0.6 0.7 0.7 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.4
Transp wind dir.NW NW NW NW NW NW NW NW NW NW NW W
Transp wind spd.28 29 30 28 28 26 25 24 23 21 20 17
Vrate kt-ft/1K..25 15 17 16 14 12 11 10 9 8 8 7
SmokeDispersion.P P P P P P P P P P P P
.THURSDAY...
Sky/weather.........Partly cloudy (25-35 percent) until 1100, then
mostly sunny (15-25 percent). Patchy blowing
snow after 0900 until 1100.
CWR.................1 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 36.
Min humidity........50 percent.
Wind (20 ft)........West winds 16 to 24 mph with gusts to around 32
mph.
Mixing height.......Below 1000 FT AGL until 1000, then 1800 ft AGL
until 1700, then Below 1000 FT AGL.
Transport winds.....West 17 to 26 mph until 1200. Northwest after
1700.
Smoke dispersal.....Poor until 1100, then fair until 1500, then
poor.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........35 36 36 31 27 22 19 17 14 16 19 21
Weather cov..... PTY PTY
Weather type.... 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............24 24 24 26 30 33 35 36 36 35 32 30
RH..............76 75 71 67 64 59 55 52 50 50 55 57
20 FT wind dir..W W W W W W W W W W W W
20 FT wind spd..17 17 17 18 20 20 21 21 22 21 21 20
20 FT wind gust.28 28 28 30 31 31 32 32 32 31 29 28
Mix hgt (kft)...0.4 0.4 0.3 0.8 1.3 1.8 1.8 1.8 1.8 1.4 1.1 0.7
Transp wind dir.W W W W W W W NW NW NW NW NW
Transp wind spd.17 17 17 21 23 26 29 30 32 29 25 22
Vrate kt-ft/1K..6 6 5 15 26 41 44 46 49 36 24 14
SmokeDispersion.P P P P P F F F F P P P
$$
Forecaster...Pettett/Hiris
Requested by...Casey Gorsett
Type of request...PRESCRIBED
.TAG 2527319.0/BOU
.DELDT 12/09/25
.FormatterVersion 2.0.0
.EMAIL cgorsett@blm.gov