502
FXUS65 KGGW 021947
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
147 PM MDT FRI MAY 2 2025
DISCUSSION
KEY MESSAGES:
- ABOVE AVERAGE TEMPERATURES ARE EXPECTED THIS WEEKEND, WHICH
RAISES FIRE WEATHER CONCERN ON SUNDAY AFTERNOON.
- A CHANGE TO WETTER AND COOLER WEATHER IS EXPECTED EARLY NEXT
WEEK BEFORE WARMING OCCURS AGAIN BY MID WEEK.
WEATHER PATTERN OVERVIEW:
A STRONG UPPER LEVEL RIDGE WILL CONTINUE TO BUILD IN TODAY THROUGH
SUNDAY, BRINGING WITH IT DRY WEATHER AND WARMING TEMPERATURES.
SUNDAY MAY FEATURE PARTICULARLY DRY AND VERY WARM TEMPERATURES
AHEAD OF THE NEXT COLD FRONT - WHICH MAY PROMPT FIRE WEATHER
CONCERNS IF WINDS ARE SUFFICIENT GIVEN THE LACK OF RECENT
RAINFALL AND LOW RELATIVE HUMIDITY.
AS THE RIDGE BREAKS DOWN AND UPPER TROUGHING BEGINS TO INFLUENCE
THE REGION, COOLER CONDITIONS ARE EXPECTED ON MONDAY. THERE IS
HIGH (70 PERCENT) CONFIDENCE OF CENTRAL MONTANA RECEIVING MORE
RAINFALL THAN NORTHEAST MONTANA, BUT THERE IS LOW (30 PERCENT)
CONFIDENCE ON AMOUNTS. THERE IS A GENERAL CONSENSUS FOR LESS THAN
ONE TENTH OF AN INCH FOR THE EASTERN TWO-THIRDS OF THE AREA.
FORECAST CONFIDENCE & DEVIATIONS:
GENERALLY WENT WITH THE NBM FOR THE FORECAST PERIOD. HOWEVER,
INCREASED WINDS TO NBM 90 FOR THIS AFTERNOON AND SATURDAY
AFTERNOON.
AVIATION
LAST UPDATED: 2045Z
FLIGHT CAT RANGE: VFR.
DISCUSSION: MOSTLY CLEAR CONDITIONS WITH A FEW HIGH CLOUDS ARE
EXPECTED.
WIND: MAINLY SOUTH AT 8 TO 15 KNOTS, DECREASING TO 5 TO 10 KNOTS
AFTER 02Z, INCREASING TO 10 TO 18 KNOTS AFTER 17Z.
GGW WATCHES/WARNINGS/ADVISORIES
NONE.
WEATHER.GOV/GLASGOW
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