Area Forecast Discussion
Issued by NWS Glasgow, MT
Issued by NWS Glasgow, MT
340 FXUS65 KGGW 112019 AFDGGW Area Forecast Discussion National Weather Service Glasgow MT 119 PM MST Tue Nov 11 2025 .DISCUSSION... KEY MESSAGES: - An overall ridging pattern will keep temperatures above normal this week with minimal chances for any measurable precipitation. WEATHER PATTERN OVERVIEW: A surface high pressure system will push in from Canada to bring temperatures down a bit tomorrow, and no weather is expected through Friday. There will be on and off high clouds during that time. The warmest temperatures over the next few days are expected to be Thursday and Friday. An upper level trough will move into the western CONUS on Friday that marks the start of a gradual trend toward cooler temperatures and increased precipitation chances, but almost none of the guidance currently presents a significant or abnormal pattern change for the middle of November. FORECAST CONFIDENCE & DEVIATIONS: Made deviations to winds and wind gusts on Day 1, Day 2, and Day 3. Used a blend of NBM 90, NBM, and manual edits to increase winds for much of the area. There is high confidence in temperatures being above normal on Thursday and Friday. There is low confidence on precipitation amounts with the upper low that is expected to move in on Friday. && .AVIATION... LAST UPDATE: 2130Z FLIGHT CAT RANGE: VFR DISCUSSION: A surface high pressure system will keep the weather quiet over the next 24 hours. There is high confidence of mid to high level clouds continuing through the period. WINDS: Northwest at 8 to 18 knots, becoming light and variable after 01Z. For KGGW, winds will switch to the southeast at 7 to 13 knots after 18Z Wednesday. 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... None. && $$ weather.gov/glasgow