Spot Forecast
Issued by NWS Glasgow, MT
Issued by NWS Glasgow, MT
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FNUS75 KGGW 200236
FWSGGW
Spot Forecast for Coal Creek...BLM MCD
National Weather Service Glasgow MT
836 PM MDT Tue Aug 19 2025
Forecast is based on forecast start time of 2100 MDT on August 19.
If conditions become unrepresentative...contact the National Weather
Service at (406) 228-9622.
...HEAT ADVISORY IN EFFECT UNTIL 8 PM MDT WEDNESDAY...
.DISCUSSION...
Strong upper ridging will lead to warm overnight conditions and
poor relative humidity recovery, to near 50 to 60 percent late
night. Very hot and dry conditions are also expected on Wednesday
with highs in the low 100s and humidity as low as 15 percent.
Winds will be south to southeast tonight and most of Wednesday
ranging between 5 and 15 mph with occasional stronger gusts. Wind
direction will shift southwest around 2 pm and west around 5pm as
a cold front approaches. Look for north to northwest winds overnight
Wednesday night behind the front. Isolated scattered
thunderstorms are also expected with the frontal passage Wednesday
evening, but widespread wetting rains are not expected.
.REST OF TONIGHT...
Sky/weather.........Mostly clear (5-15 percent).
CWR.................1 percent.
Chance of thunder...2 percent.
Min temperature.....Around 69.
Max humidity........55 percent.
Wind (20 ft)........Southeast winds 5 to 15 mph. Gusts up to 22
mph in the late evening and overnight.
Mixing height.......700 ft
AGL. Transport winds.....South 12 to 20 mph.
TIME (MDT) 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........12 9 11 16 15 8 10 4 8
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0 0 0 0
Temp............85 82 80 78 76 75 73 72 70
RH..............39 44 46 47 50 52 54 55 59
20 FT wind dir..SE SE SE SE SE SE SE E E
20 FT wind spd..8 8 8 8 8 7 7 6 6
20 FT wind gust.17 18 18 17 16 14 14 13 12
Mix hgt (kft)...0.8 0.8 0.8 0.8 0.9 0.8 0.8 0.8 0.7
Transp wind dir.SE S S S S S S S S
Transp wind spd.20 17 18 17 17 15 13 12 12
.WEDNESDAY...
Sky/weather.........Sunny (5-15 percent). Areas of smoke early in
the afternoon.
CWR.................1 percent.
Chance of thunder...2 percent.
Max temperature.....Around 103.
Min humidity........15 percent.
Wind (20 ft)........Southeast winds around 6 to 10 mph shifting to the west
at around 10 mph with gusts to around 20 mph late in
the afternoon.
Mixing height.......7100 ft AGL.
Transport winds.....South 10 to 18 mph shifting to the west 16 to
18 mph late in the afternoon.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5 2 1 7 5 3 5 12 7 19 15 18
Weather cov..... ARS
Weather type.... SMK
Tstm cov........
CWR.............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............69 70 75 79 87 93 97 100 101 103 101 101
RH..............60 59 52 43 35 30 24 21 18 17 17 18
20 FT wind dir..E E SE S S S SW SW SW SW W W
20 FT wind spd..6 6 7 8 10 11 11 11 11 10 10 9
20 FT wind gust.11 13 14 16 17 18 19 19 19 18 17 16
Mix hgt (kft)...0.8 0.9 1.0 1.8 2.3 3.3 4.3 5.1 5.6 6.9 6.9 7.1
Transp wind dir.S S S S S S SW SW SW W W W
Transp wind spd.10 10 12 18 21 21 18 20 18 20 18 16
.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy (25-35 percent) then becoming
mostly cloudy (70-80 percent) then becoming
partly cloudy (35-45 percent). Slight chance of
showers overnight.
CWR.................5 percent.
Chance of thunder...13 percent.
Min temperature.....Around 66.
Max humidity........67 percent.
Wind (20 ft)........West winds around 10 mph shifting to the north 5
to 15 mph in the late evening and overnight.
Mixing height.......700 ft AGL.
Transport winds.....Northwest 7 to 14 mph increasing to north 20 to
22 mph.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........15 49 66 84 82 88 74 74 74 38 38 38
Weather cov..... SCH SCH SCH SCH SCH SCH
Weather type.... RW RW RW RW RW RW
Tstm cov........
CWR.............0 0 0 0 0 0 10 10 10 10 10 10
Chc of thdr (%).10 10 10 10 10 10 10 10 10 10 10 10
Temp............100 96 90 84 81 79 77 75 73 71 69 67
RH..............19 24 31 37 43 46 50 53 56 58 62 65
20 FT wind dir..W W W N N N N N N NW NW NW
20 FT wind spd..8 8 8 6 6 6 6 6 6 9 9 9
20 FT wind gust.14 14 14 10 10 10 10 10 10 12 12 12
Mix hgt (kft)...5.0 2.4 1.0 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.9 1.0
Transp wind dir.W W W NW NW NW NW N N N N N
Transp wind spd.14 10 10 7 8 10 14 16 20 21 22 21
.THURSDAY...
Sky/weather.........Sunny (15-25 percent).
CWR.................3 percent.
Chance of thunder...11 percent.
Max temperature.....Around 85.
Min humidity........32 percent.
Wind (20 ft)........North winds 9 to 11 mph with gusts to around 19
mph.
Mixing height.......5500 ft AGL.
Transport winds.....Northwest 16 to 21 mph.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........27 27 27 32 32 32 25 25 25 11 11 11
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of thdr (%).10 10 10 10 10 10 10 10 10 10 10 10
Temp............67 68 69 72 75 78 81 83 84 84 84 84
RH..............67 67 65 62 57 50 44 40 36 34 32 31
20 FT wind dir..N N N NW NW NW N N N N N N
20 FT wind spd..9 9 9 10 10 10 11 11 11 11 11 11
20 FT wind gust.16 16 16 18 18 18 19 19 19 19 19 19
Mix hgt (kft)...1.2 1.5 1.8 2.3 2.8 3.5 4.0 4.5 4.8 5.1 5.4 5.5
Transp wind dir.N N N NW NW NW NW NW NW NW NW NW
Transp wind spd.21 20 20 18 18 17 17 17 16 16 16 16
$$
Forecaster...MALIAWCO
Requested by...Connor Adkins
Type of request...WILDFIRE
.TAG 2520281.0/GGW
.DELDT 08/19/25
.FormatterVersion 2.0.0
.EMAIL MTMCC@firenet.gov