496
FNUS75 KGGW 290114
FWSGGW
SPOT FORECAST FOR RATTLESNAKE...BLM MCD
NATIONAL WEATHER SERVICE GLASGOW MT
714 PM MDT THU AUG 28 2025
FORECAST IS BASED ON FORECAST START TIME OF 1900 MDT ON AUGUST 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE AT (406) 228-9622.
DISCUSSION
LARGE SCALE WINDS ACROSS THE REGION WILL CONTAIN A SOUTHERN
COMPONENT THROUGH TOMORROW. HOWEVER, AS WIND SPEED IS LIGHTER THAN
10 MPH, LOCAL TERRAIN EFFECTS WILL BECOME THE MAIN CONTROL FOR
DIRECTION FOR MOST OF THE FORECAST AND AREA. EXPECT LOCALIZED
DOWN COULEE FLOW THROUGH TONIGHT AND UP COULEE FLOW TOMORROW
AFTER SUNRISE. THE BURN SITE LOOKS TO REMAIN DRY THROUGH MOST
OF TONIGHT AND INTO FRIDAY WITH CURRENT SHOWERS STAYING WELL
SOUTHWEST OF IT. CHANCES(10-20%) FOR SHOWERS AND THUNDERSTORMS
BEGIN TO ARRIVE FRIDAY EVENING. THOUGH NO WETTING RAINS ARE
EXPECTED WITH THIS ACTIVITY. GUSTY ERRATIC WINDS WILL BE POSSIBLE
NEAR ANY SHOWERS OR THUNDERSTORMS.
REST OF TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...5 PERCENT.
MIN TEMPERATURE.....AROUND 59.
MAX HUMIDITY........83 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 6 MPH BECOMING LIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....SOUTH 6 TO 12 MPH.
TIME (MDT) 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........94 94 95 93 89 82 77 80 82 76 83
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 10 0 0 0 0 0 0 0 0 0
TEMP............80 76 72 71 69 67 66 64 63 63 60
RH..............34 41 47 50 55 59 62 65 69 72 78
20 FT WIND DIR..SE S S S S S S S S S S
20 FT WIND SPD..6 5 5 5 4 4 4 3 4 3 3
20 FT WIND GUST.10 10 10 8 7 7 6 6 6 6 6
MIX HGT (KFT)...2.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.S S SW SW SW S S S S S S
TRANSP WIND SPD.8 9 12 9 8 7 7 7 6 7 6
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF
RAIN EARLY IN THE MORNING. SLIGHT CHANCE OF
RAIN EARLY IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF THUNDER...4 PERCENT.
MAX TEMPERATURE.....AROUND 78.
MIN HUMIDITY........46 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 6 MPH IN THE
LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......6600 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 6 TO 8 MPH SHIFTING TO THE EAST 8 TO
9 MPH LATE IN THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........67 62 60 71 61 62 58 82 82 65 75 75
WEATHER COV.....SCH SCH SCH SCH
WEATHER TYPE....RN RN RN RN
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............59 60 64 67 70 73 74 76 76 76 76 76
RH..............84 83 77 72 63 56 51 46 45 45 44 45
20 FT WIND DIR..S S S S S S S S S SE S S
20 FT WIND SPD..3 3 3 4 5 5 5 5 6 6 6 6
20 FT WIND GUST.6 6 6 6 7 8 10 10 11 11 12 11
MIX HGT (KFT)...0.5 0.5 0.6 1.1 2.1 3.5 5.5 6.1 6.3 6.6 5.4 5.5
TRANSP WIND DIR.SE SE SE SE SE SE E E E E E E
TRANSP WIND SPD.7 6 7 8 7 7 8 8 7 8 9 9
FORECASTER...HICKS
REQUESTED BY...HANNAH
TYPE OF REQUEST...WILDFIRE
.TAG 2520917.0/GGW
.DELDT 08/28/25
.FORMATTERVERSION 2.0.0
.EMAIL MTMCC@FIRENET.GOV
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