textproduct: Glasgow

KEY MESSAGES

- Upper ridging will help provide warm and dry weather conditions through Thursday afternoon to NE Montana.

- As the ridge slides east hot temperatures will turn hotter with highs by Thursday and Friday into the mid 80s to low 90s.

- Hit-and-miss thunderstorm chances look to increase for Thursday evening into the weekend.

DISCUSSION

WEATHER PATTERN OVERVIEW: Upper ridging will continue to provide support for warm and dry weather through Thursday. As the ridge axis slides eastward look for temperatures to trend hotter with highs in the 90s Thursday and Friday afternoon.

As the ridge axis slides east thunderstorm chances will increase each day Thursday evening into the weekend. Coverage will remain isolated to scattered though a few may produce locally heavy rain. Current periods of interest for higher PoPs are Thursday night, Saturday morning, and Saturday night.

FORECAST CONFIDENCE & DEVIATIONS: Ensemble consensus lends to average to above average confidence on warm to hot conditions over the region this week. While thunderstorm chances look to increase late in the week, will need to examine high resolution guidance to better capture thermodynamic environment and finer detail to support confidence on storm timing and intensity.

/GAH

AVIATION

LAST UPDATED: 0430Z.

FLIGHT CAT RANGE: VFR.

DISCUSSION: Upper ridging will continue to provide clear skies through tonight across the region and excellent flying weather. Some high clouds will begin to move into the region Wednesday evening from the SW.

WINDS: Light and E or variable through Wednesday morning. Turning SE at KGGW and remaining variable at other terminals into the afternoon. Becoming E to SE at all location and increasing to 5 to 15 kts This evening through tonight.

GAH

GGW WATCHES/WARNINGS/ADVISORIES

None.