873
FXUS65 KGGW 122029
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
229 PM MDT SUN APR 12 2026
KEY MESSAGES
- SEASONABLE TEMPERATURES AND WIDESPREAD RAIN SHOWERS WITH SCATTERED
THUNDERSTORMS ARE EXPECTED TONIGHT AND TOMORROW.
- BELOW NORMAL TEMPERATURES WITH MIXED PRECIPITATION THURSDAY AND
FRIDAY.
DISCUSSION
WEATHER PATTERN OVERVIEW:
UPPER LOW OFF THE NORTHERN CALIFORNIA COAST WILL LIFT THROUGH THE
GREAT BASIN THROUGH THE EARLY PART OF THE WEEK. THIS WILL CONTINUE
TO PUSH PACIFIC MOISTURE INTO THE STATE, WITH ANOTHER ROUND OF
SHOWERS POSSIBLE TONIGHT INTO TOMORROW. SCATTERED THUNDERSTORMS
PRODUCING GUSTY WINDS ARE POSSIBLE.
THE NEXT UPPER TROUGH MOVES INTO THE NORTHERN ROCKIES ON WEDNESDAY
AND INTO THE PLAINS THROUGH FRIDAY. THIS WILL LEAD TO ANOTHER
ROUND OF SHOWERS, AND WITH COLDER AIR WITH THE TROUGH, MIXED
PRECIPITATION IS POSSIBLE ACROSS MUCH OF THE REGION WEDNESDAY
NIGHT INTO THURSDAY, PARTICULARLY FOR ELEVATED AREAS. CHANCES FOR
AT LEAST 2" OF SNOW HAVE LOWERED SIGNIFICANTLY. CHANCES FOR
1" OF SNOW ARE BETWEEN 20 - 30% WITH HIGHEST CHANCES ALONG THE
CANADIAN BORDER AND EAST OF WOLF POINT.
FORECAST CONFIDENCE & DEVIATIONS:
BLENDED HRRR FOR DAY 1 WINDS, AND 33% NBM90 FOR DAY 1-2 WIND
GUSTS. LOWERED DAY 1 RH AND RAISED MAX TEMPERATURE.
LOWERING CONFIDENCE IN SNOW ACCUMULATION WITH THE COLDER SYSTEM
WED-FRI.
AVIATION
LAST UPDATE: 2000Z
FLIGHT CAT RANGE: VFR - IFR
DISCUSSION: VFR CONDITIONS THROUGH THE END OF THE DAY TODAY WITH INCREASING
LOW TO MID LEVEL CLOUDS AHEAD OF A MORE SIGNIFICANT ROUND OF
SHOWERS TONIGHT INTO TOMORROW. LIGHTNING IS POSSIBLE WITH THESE
SHOWERS. MVFR CONDITIONS MOVE WEST TO EAST LOWERING KGGW AFTER
10Z, KOLF AFTER 13Z, AND KGDV AND KSDY AFTER 14Z. IFR CONDITIONS
MAY BE MET AFTER 16Z OVER KGDV AND KSDY.
WINDS: GUSTY NW WINDS 15 TO 20 KTS SLOWLY VEER THROUGH THE DAY
TODAY BECOMING EAST AT 5 TO 10 KTS AFTER 6Z.
GGW WATCHES/WARNINGS/ADVISORIES
NONE.
WEATHER.GOV/GLASGOW
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page