Area Forecast Discussion
Issued by NWS Glasgow, MT
Issued by NWS Glasgow, MT
000 FXUS65 KGGW 292031 AFDGGW Area Forecast Discussion National Weather Service Glasgow MT 231 PM MDT Tue Jul 29 2025 .DISCUSSION... KEY MESSAGES: 1) Isolated to widely scattered thunderstorms are expected this evening with some severe potential. 2) Upper level ridging will remain over the region though fluctuate some in position over the next several days. The bottom line: expect thunderstorm chances to continue on and off along near seasonable temperatures. WEATHER PATTERN OVERVIEW: Upper ridging will continue over the region this week, though fluctuate in position. Currently, NE Montana sits on the front quadrant of the ridge with NW upper flow. Ample low level moisture, CAPE/Shear are more than supportive of this evening convection already firing up west of Jordan. Ridging late week will shift east allowing southwest upper flow to return with more widespread thunderstorm chances making a return. Temperatures will remain near normal, within a few degrees. FORECAST CONFIDENCE & DEVIATIONS: NBM was used for this forecast cycle which captured the overall pattern well. Confidence is high that temperatures will remain near within a few degrees of normal each day while thunderstorm chances continue. The greatest coverage for thunderstorms will be late in the week. && .AVIATION... LAST UPDATE: July 29, 2025 at 2030Z FLIGHT CAT RANGE: VFR, with MVFR in thunderstorms. DISCUSSION: VFR conditions are expected into tonight. Scattered showers and thunderstorms will result in reductions in ceilings and visibilities down to MVFR at times mainly this evening. WINDS: East winds will persist ranging from 5 to 15 kts into tonight. Gusty and shifting winds will take hold near thunderstorms. && .GGW WATCHES/WARNINGS/ADVISORIES... None. && $$ weather.gov/glasgow