Area Forecast Discussion
Issued by NWS Glasgow, MT
Issued by NWS Glasgow, MT
285 FXUS65 KGGW 080938 AFDGGW Area Forecast Discussion National Weather Service Glasgow MT 238 AM MST Sat Nov 8 2025 .DISCUSSION... KEY MESSAGES: - Wind and snow rain mix will slowly dissipate through the morning hours with dry conditions tonight onward. - Cold conditions continue through the weekend before a strong brief warm up on Monday. Afterwards temps moderate out for the workweek. WEATHER PATTERN OVERVIEW: A shortwave/low pressure system will exit northeast Montana this morning. This system will have strong gusty winds to the southeast of the low and brief precipitation in the form of rain or snow which will slowly dissipate out through mid-day. Conditions will remain cool through Sunday and then rapidly warm Monday as a ridge passes over for a 24 hour period. Once the ridge exits temperatures moderate out into the 40s and 50s for highs through the work week with little to no chance for precipitation. FORECAST CONFIDENCE & DEVIATIONS: Deviations from NBM included stretching hourly Sky grids through the afternoon from 80/90% to near 100% to make BKN skies OVC for TAFs using the NBM90. Confidence in the forecast is HIGH through Monday. Confidence in the forecast is MODERATE Monday night through Thursday night when a second ridge arrives. Confidence in the forecast is LOW from Friday onward as ensembles do not yet know how to resolve the exit of the ridge through the weekend. Any frontal passage with the exit of the ridge could bring light precip, but chances are low (5-15%). && .AVIATION... LAST UPDATE: 0800Z FLIGHT CAT RANGE: IFR - VFR DISCUSSION: A low pressure center is moving across northeast Montana this morning from northwest to southeast. To the southwest of the low, it is dragging extremely gusty winds along with rain and snow showers. The low should exit around 12-13Z allowing ceilings to rise to at least MVFR for most terminals. Isolated rain, snow, or mist may linger across the terminals into the early afternoon with full drying out expected by the evening hours. MVFR ceilings will rise above fuel loading in the mid- afternoon, but probably not clear MVFR entirely at all sites until roughly late Sunday morning. WIND: Turning NW at 10 to 20 kts gusting 30 kts through the early morning. Then calming to 10 to 15 kts in the late morning. Veering NW to N and calming further to 10 kts or less in the afternoon. Then slowly veering to the SE and becoming light this evening through Sunday morning. GAH && .GGW WATCHES/WARNINGS/ADVISORIES... Lake Wind Advisory until 8 AM MST this morning for Central and Southeast Phillips-Central and Southern Valley-Garfield-McCone- Petroleum. && $$ weather.gov/glasgow