834
FXUS65 KGGW 090522
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
1122 PM MDT TUE SEP 8 2026
KEY MESSAGES
- ISOLATED PATCHY FOG IS POSSIBLE ALONG THE INTERNATIONAL BORDER
THIS MORNING.
- A BRIEF WARM-UP WITH DRY WEATHER IS EXPECTED THROUGH THURSDAY.
A FIRE WEATHER WATCH IS IN EFFECT FROM NOON TILL 8 PM THURSDAY.
- TWO PERIODS OF LIGHT RAINSHOWERS ARE POSSIBLE. A LIGHT ONE
THURSDAY NIGHT/FRIDAY AND A HEAVIER ONE SATURDAY NIGHT THROUGH
SUNDAY NIGHT.
DISCUSSION
WINDS WILL DIMINISH THIS MORNING AS SKIES CLEAR AND THE
ATMOSPHERE DECOUPLES. PREVIOUS RAIN SHOWERS MAY PRODUCE ENOUGH LOW
LEVEL MOISTURE FOR SOME ISOLATED PATCHY FOG ALONG THE
INTERNATIONAL BORDER IN THE NORTH. THEN A WARM FRONT MOVES EAST
THROUGH LATER TODAY WITH SOME CLOUDS ASSOCIATED WITH IT. HIGH
TEMPERATURES WILL BE ABOUT 5 TO 10 DEGREES WARMER THAN THE
PREVIOUS DAYS.
A WARMER DAY IS EXPECTED THURSDAY PARTIALLY DUE TO COMPRESSIONAL
WARMING AS A COLD FRONT APPROACHES FROM THE NORTHWEST. TEMPS
SHOULD REACH UP TO THE 80S IN MOST PLACES OR 5 TO 15 DEGREES ABOVE
NORMAL. WITH INCREASING WEST WINDS, MINIMUM HUMIDITY IN THE TEENS
AND LITTLE RAINFALL IN THE SOUTHEAST ZONES RECENTLY A FIRE
WEATHER WATCH WAS ISSUED FOR THURSDAY FROM NOON TILL 8 PM. THIS
WATCH WAS EXPANDED TO SOUTHERN PETROLEUM AND GARFIELD COUNTIES.
THE COLD FRONT THEN DROPS SOUTHEAST ACROSS THE AREA THURSDAY NIGHT
BRINGING THE CHANCE OF LIGHT SHOWERS THURSDAY NIGHT INTO FRIDAY
MORNING.
THE COOLER/WETTER CONDITIONS LINGER THROUGH THE WEEKEND AS AN
SECOND HEAVIER WAVE OF RAINS MOVES IN ALONG AN UPPER TROUGH FROM
THE PACIFIC NW. TEMPS BY SUNDAY WILL DROP TO 10 TO 20 BELOW
SEASONAL NORMS WITH THIS PASSAGE AS WELL.
FORECAST CONFIDENCE & DEVIATIONS:
DEVIATIONS FROM NBM INCLUDE HOURLY VISIBILITY INTO THE EARLY
MORNING TODAY WHICH WAS TWEAKED DOWNWARD FOR LIGHT FOG ACROSS THE
INTERNATIONAL BORDER.
CONFIDENCE IN TEMPS IS HIGH THROUGH SATURDAY.
CONFIDENCE IN TEMPS IS MODERATE AFTERWARD.
AVIATION
LAST UPDATED: 0520Z
FLIGHT CAT RANGE: MVFR - VFR
DISCUSSION: LIGHT RAIN SHOWERS THIS EVENING WILL MOVE EASTWARD,
EXITING INTO ND AROUND 07 TO 08Z. HOWEVER MVFR CEILINGS MAY
LINGER AN HOUR OR TWO LATER. WITH RAIN MOISTENING THE SURFACE
LAYER AND CLEAR SKIES INCOMING, LIGHT PATCHY FOG MAY BE POSSIBLE
NORTH OF THE TERMINALS ALONG THE INTERNATIONAL BORDER. CHANCE OF
FOG TRAVELING FAR ENOUGH SOUTH FOR A TERMINAL TO BE HIT ARE LOW
AROUND 5-20% AND THEREFORE WILL NOT BE IN THE TAFS DIRECTLY BUT
MAY REQUIRE AND AMD IF IT DOES MATERIALIZE.
WIND: W AT 5 TO 15 KTS THROUGH THE MORNING AND INTO WEDNESDAY
AFTERNOON. BECOMING LIGHT AND VARIABLE WEDNESDAY EVENING THROUGH
THE OVERNIGHT.
GAH
GGW WATCHES/WARNINGS/ADVISORIES
FIRE WEATHER WATCH FROM THURSDAY AFTERNOON THROUGH THURSDAY
EVENING FOR DAWSON/MCCONE/PRAIRIE/RICHLAND/WIBAUX COUNTIES-
SOUTHERN PETROLEUM AND SOUTHERN GARFIELD COUNTIES.
WEATHER.GOV/GLASGOW
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page