Area Forecast Discussion
Issued by NWS Glasgow, MT
Issued by NWS Glasgow, MT
147 FXUS65 KGGW 050258 AFDGGW Area Forecast Discussion National Weather Service Glasgow MT 858 PM MDT Thu Jul 4 2024 .DISCUSSION... KEY MESSAGES: 1) Expect daily chances for scattered thunderstorms through this weekend, especially during the afternoon and evening hours. 2) Conditions are expected to trend toward hot and dry next week with upper level ridging setting up. WEATHER PATTERN OVERVIEW: Active upper level northwest flow over the Northern High Plains will continue daily chances for showers and thunderstorms. Although any storm may produce brief downpours, the lack of shear is expected to limit the potential for sustained updrafts. Thus, mostly ordinary cell convection is expected. Ensembles continue to support a large upper level ridge becoming established over the CONUS next week. This suggests that the pattern will shift toward drier weather conditions as temperatures gradually return to near normal, and eventually above normal. FORECAST CONFIDENCE & DEVIATIONS: While confidence is low on precise timing and placement of any thunderstorms, confidence is high on an overall active weather pattern remaining in place this week with growing confidence on hot and dry weather next week. The NBM was largely followed which captured expected trends rather well. && .AVIATION... LAST UPDATED: 0245Z FLIGHT CAT RANGE: VFR - MVFR DISCUSSION: Scattered showers and thunderstorms will clear out into the evening before midnight, but return again around Noon Friday through the afternoon and early evening hours. These convective showers may come with brief MVFR ceilings or visibilities if tracking directly over a taf site. WIND: NW between 10 and 20 kts, gusting to 25 kts through 03Z. Then decreasing to 10 kts or under through tonight and into Friday. GAH && .GGW WATCHES/WARNINGS/ADVISORIES... None. && $$ weather.gov/glasgow