328
FXUS65 KGGW 100657
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
1257 AM MDT FRI APR 10 2026
KEY MESSAGES
- MILDER TEMPERATURES THROUGH SATURDAY BEFORE A TROUGH MOVES IN.
- ISOLATED THUNDERSTORMS ON SATURDAY AFTERNOON ACROSS THE WEST.
- COOLER AND UNSETTLED CONDITIONS ARE LIKELY SUNDAY INTO EARLY
NEXT WEEK, WITH THE BEST OPPORTUNITY FOR ACCUMULATING RAINFALL
IN THE SOUTHWEST PART OF THE AREA.
DISCUSSION
WEATHER PATTERN OVERVIEW:
UPPER RIDGING WILL INFLUENCE WEATHER CONDITIONS TODAY INTO
SATURDAY, WITH VERY WARM TEMPERATURES AND HIGHS SATURDAY IN THE
70S. A COLD FRONTAL PASSAGE IS EXPECTED SATURDAY AFTERNOON. THIS
FRONT WILL HELP GET A FEW ISOLATED THUNDERSTORMS GOING WHICH
SHOULD TRANSITION TO LIGHT RAIN SHOWERS SATURDAY NIGHT THROUGH
SUNDAY. THIS WILL HELP ERODE THE RIDGE A BIT AS WELL.
A PACIFIC TROUGH IS EXPECTED TO MAKE ITS WAY ONSHORE OVER THE WEST
COAST SUNDAY, AND HAS IT BRINGING PRECIPITATION THROUGH TUESDAY
MORNING. THERE IS UNCERTAINTY REGARDING HOW FAR INTO NORTHEAST
MONTANA THIS PRECIPITATION WILL MAKE IT, SO THERE IS NOT ENOUGH
CONFIDENCE TO SUGGEST ACCUMULATION AMOUNTS.
THERE IS SOME AGREEMENT ON A TROUGH PATTERN TUESDAY THROUGH
THURSDAY, WHICH SHOWS ANOTHER DISTURBANCE AROUND NEXT WEDNESDAY
AND THURSDAY.
FORECAST CONFIDENCE & DEVIATIONS:
NO DEVIATIONS FROM NBM WERE OBSERVED.
THERE IS HIGH TO MODERATE CONFIDENCE IN TEMPERATURES THROUGH
SATURDAY, AND MODERATE CONFIDENCE AFTER THIS TIME.
THERE IS LOW CONFIDENCE IN WINDS SATURDAY NIGHT WITH THE LATEST
NBM ENSEMBLE RUN TAKING NEARLY EVERYTHING WELL BELOW LAKE WIND
CRITERIA AFTER THE PREVIOUS RUN HAD IT WELL ABOVE.
THERE MODERATE TO HIGH CONFIDENCE IN ISOLATED THUNDERSTORMS
OCCURING ACROSS THE WEST ON SATURDAY AFTERNOON.
THERE IS LOW TO MODERATE CONFIDENCE IN PRECIPITATION ACCUMULATION
THROUGH SATURDAY EVENING, AND LOW CONFIDENCE AFTER THIS TIME.
/GAH
AVIATION
LAST UPDATE: 9430Z
FLIGHT CAT RANGE: VFR
DISCUSSION: A FEW MID-LEVEL CLOUDS AND VFR CONDITIONS ARE
EXPECTED THROUGH THE CYCLE.
WINDS: LIGHT AND VARIABLE THROUGH MID-MORNING. BECOMING S TO SE
LATE MORNING AND ICNREASING TO 10 TO 20 KTS IN THE AFTERNOON
HOURS. CALMING TO 5 TO 15 KTS FRIDAY EVENING.
GAH
GGW WATCHES/WARNINGS/ADVISORIES
NONE.
WEATHER.GOV/GLASGOW
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