NZUS95 KGGW 110733 LLLGGW MTZ016>027-059>062-111933- Public Information Statement National Weather Service Glasgow MT 133 AM MDT Fri Oct 11 2024 .DISCUSSION... KEY MESSAGES: 1) A weak wave this afternoon could bring an isolated shower along and east of the Yellowstone River. 2) Surface high pressure this weekend will bring freezing temperatures to many areas Saturday night and Sunday morning. 3) Look for warm and dry weather Monday through Wednesday with an upper ridge. WEATHER PATTERN OVERVIEW: A weak wave in nearly zonal flow aloft this afternoon could bring an isolated shower to areas along and east of the Yellowstone River. A mainly dry cold front moves through the area tonight with surface high pressure moving into the area on Saturday. Mostly clear skies and light winds Saturday night will allow temperatures to fall into the upper 20s in the NE half of the forecast area for lows. Some locations that have not had a freeze yet will likely see their first freeze of the season on Sunday morning. Upper ridge builds into Montana early next week with well above normal temperatures that will continue until a cold front Wednesday or Wednesday night brings cooler temperatures for the remainder of next week. FORECAST CONFIDENCE & DEVIATIONS: There is low confidence on any showers this afternoon. There is high confidence for the overall dry pattern over the Weekend and the first half of next week with medium confidence on the extent of ridging and rising temperatures early next week. The base forecast follows this thinking well for now. && .AVIATION... LAST UPDATED: 0800Z FLIGHT CATEGORY RANGE: VFR DISCUSSION: Mostly clear skies early will be followed by a mix of mid and high level clouds moving in from the west in the late morning and continuing through this evening as a cold front moves through the area. KSDY and KGDV could see an isolated shower between 20Z and 00Z this afternoon. Skies will clear late tonight. WINDS: Light and variable this morning becoming SE 10 to 15 knots by 18z. SE winds will diminish to 5 to 10 knots this evening and become NW late tonight. $$