Area Forecast Discussion
Issued by NWS Glasgow, MT
Issued by NWS Glasgow, MT
779 FXUS65 KGGW 142110 AFDGGW Area Forecast Discussion National Weather Service Glasgow MT 210 PM MST Fri Nov 14 2025 .DISCUSSION... KEY MESSAGES: - A cold front is bringing scattered rain showers to the area through the early afternoon tomorrow. - The Lake Wind Advisory for Fort Peck Lake continues through 5 PM today. - Small, scattered troughs will bring chances for precipitation early next week. WEATHER PATTERN OVERVIEW: A surface cold front is already south of HWY 2 to switch winds to the north, with winds in the south still coming out of the west. This front and an upper level shortwave trough are working together to bring scattered rain and snow showers to the area through Saturday afternoon. There is a small chance for freezing rain tonight as surface temperatures cool closer to the freezing temperature mark. Mostly cloudy skies are limiting warming compared to yesterday. The upper level pressure is expected to weaken Sunday night into Wednesday. There are shortwave troughs that will move through this broad trough pattern to bring scattered rain and snow showers to the area with seasonable temperatures. FORECAST CONFIDENCE & DEVIATIONS: Kept deviations to winds and wind gusts through this evening by maintaining a blend of higher resolution and 90th percentile guidance for the frontal passage. Confidence is moderate for the temperature pattern. There is moderate (50 percent) confidence of precipitation amounts through tomorrow evening being below 0.05 inches, and low confidence for precipitation amounts beyond that period. && .AVIATION... FLIGHT CAT RANGE: VFR, then scattered MVFR after 02Z. DISCUSSION: A shortwave trough is bringing scattered rain showers that will continue on and off through 19Z Saturday. Generally quiet conditions will continue with broken to overcast mid level clouds. There is high confidence that scattered MVFR ceilings will move in behind a cold front late this afternoon. There is moderate confidence these ceilings will continue through the late afternoon tomorrow. WINDS: For KOLF and KGGW, north at 10 to 20 knots becoming light and variable after 07Z. KGGW will become southeast at 7 to 12 knots after 18Z. For KSDY and KGDV, west at 10 to 20 knots becoming north at 7 to 17 knots after 02Z, becoming light and variable after 09Z. LLWS: There is low confidence of LLWS affecting KGDV from 07Z to 10Z. EQUIPMENT: KOLF`s ASOS telecom circuit is down and can not be dialed into. Therefore, AMD NOT SKED for this TAF until repairs can be made. && .GGW WATCHES/WARNINGS/ADVISORIES... Lake Wind Advisory until 5 PM MST this afternoon for Central and Southeast Phillips-Central and Southern Valley-Garfield-McCone- Petroleum. && $$ weather.gov/glasgow