191
FXUS65 KGGW 092024
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
224 PM MDT WED SEP 9 2026
KEY MESSAGES
- HIGH PRESSURE WILL BRING SEASONABLE TEMPERATURES AND DRY WEATHER
THROUGH TONIGHT ACROSS THE REGION.
- WARM AND DRY WEATHER CONDITIONS IN THE PRESENCE OF GUSTY WEST
WINDS WILL LEAD TO HIGH FIRE DANGER FOR SOUTHERN PORTIONS OF THE
AREA ON THURSDAY AFTERNOON AND EVENING.
- A COLD FRONT WILL DRIVE THROUGH THE AREA THURSDAY NIGHT WITH
MARKEDLY COOLER TEMPERATURES LATER IN THE WEEK ALONG WITH
ISOLATED TO WIDELY SCATTERED SHOWERS AND THUNDERSTORMS AT TIMES.
DISCUSSION
UPPER RIDGING OVER THE REGION WILL HELP MAINTAIN DRY WEATHER AND
CLEAR SKIES THROUGH TONIGHT. ON THURSDAY TEMPERATURES WILL
INCREASE AHEAD OF A COLD FRONT WITH HIGHS PUSHING INTO THE 80S.
AFTERNOON AND EVENING HUMIDITY WILL DROP BELOW 20 PERCENT FOR
SOUTHERN AREAS AS WINDS INCREASE TO 10 TO 20 MPH, GUSTING TO 30
MPH IN THE PRESENCE OF DRY FUELS. HAVE UPGRADED THE FIRE WEATHER
WATCH TO A RED FLAG WARNING IN EFFECT FROM NOON UNTIL 8 PM MDT
THURSDAY.
A COLD FRONT WILL PUSH THROUGH THE REGION THURSDAY NIGHT WITH
INCREASING RAIN SHOWERS. WETTING RAINS ARE POSSIBLE WITH THE
STEADIER CONVECTION BUT WILL BE FAIRLY HIT OR MISS. LOOK FOR
MARKEDLY COOLER TEMPERATURES OVER THE WEEKEND WITH HIGHS ONLY IN
THE 50S AND 60S.
FORECAST CONFIDENCE & DEVIATIONS:
NBM AND NBM90 WERE BLENDED FOR THURSDAY WIND TO NUDGE TOWARD
HIGHER ENVELOPE OF THE FORECAST GUIDANCE AHEAD OF THE FRONTAL
PASSAGE AND IN SUPPORT OF FIRE WEATHER HIGHLIGHTS. OTHERWISE
FORECAST USED NBM WHICH CAPTURED EXPECTED TRENDS THROUGH THE
PERIOD. CONFIDENCE IS ABOVE AVERAGE FOR DRY AND WINDY CONDITIONS
RAISING FIRE WEATHER CONCERNS ON THURSDAY BUT BELOW AVERAGE FOR
TIMING AND PLACEMENT OF SPECIFIC SHOWERS THURSDAY NIGHT.
AVIATION
LAST UPDATED: WEDNESDAY SEPTEMBER 9 AT 2000Z.
FLIGHT CAT RANGE: VFR. BRIEF MVFR IS POSSIBLE WITH THE STEADIER
SHOWERS THURSDAY NIGHT.
DISCUSSION: HIGH PRESSURE WILL LEAD TO MAINLY DRY WEATHER AND
CLEAR SKIES TONIGHT ACROSS AREA TERMINALS. CLOUDS WILL INCREASE
THURSDAY NIGHT WITH SHOWERS AS A COLD FRONT TRACKS THROUGH THE
REGION.
WIND: WEST THIS AFTERNOON AROUND 10 KTS, BECOMING SOUTHWEST AT 5
TO 10 KTS AFTER 03Z. WINDS ON THURSDAY WILL AGAIN BECOME WEST AND
INCREASE TO 10 TO 20 KTS, GUSTING TO 25 KTS.
GGW WATCHES/WARNINGS/ADVISORIES
RED FLAG WARNING FROM NOON TO 8 PM MDT THURSDAY FOR
DAWSON/MCCONE/PRAIRIE/RICHLAND/WIBAUX COUNTIES-SOUTHERN
PETROLEUM AND SOUTHERN GARFIELD COUNTIES.
WEATHER.GOV/GLASGOW
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