textproduct: Glasgow
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- Warm and dry weather is expected today.
- Shower and thunderstorm chances start tonight and continue on Sunday as an upper low moves towards Montana. - Widespread rain is expected Sunday night through Monday night as the upper low moves through Montana.
DISCUSSION
WEATHER PATTERN OVERVIEW: A cold front will moving through NE Montana early this morning. There has been a few isolated thunderstorms in or near the forecast area during the night. Temperatures will somewhat cooler today with highs in the 80s west and lower 90s east.
The ridge moves east over the weekend, so precipitation chances increase as an upper trough/low moves in. The GFS and ECMWF ensembles have a high probability of over an inch of rain between Sunday and Tuesday north of US 2 with lower precipitation amounts expected to the south.
An airmass on the humid side is expected to move in from the east on Sunday. Look for chances for showers and isolated strong thunderstorms in some areas on Sunday. SPC has a marginal risk of severe weather on Sunday for most of NE Montana.
The heaviest rain with this system is expected to be Sunday night and Monday as the surface low moves north across eastern Montana. The upper low moves through the area Monday and Monday night and becomes stacked with the surface low over Saskatchewan on Tuesday. Strong west winds are expected across the region on Tuesday.
The low moves to the east Tuesday and Wednesday and Thursday looks dry at this point as upper ridge moves in. FORECAST CONFIDENCE & DEVIATIONS:
There is low confidence in any shower and thunderstorm chances tonight with confidence increasing on Sunday to high confidence Sunday night and Monday.
There is moderate confidence in rainfall amounts from Sunday through Tuesday.
AVIATION
LAST UPDATED: 0630Z
FLIGHT CAT RANGE: VFR.
DISCUSSION: There will be some mid and high clouds at times today and tonight. Look for some daytime cumulus this afternoon. There will be chances for showers and thunderstorms at times tonight. WIND: North to NW 5 to 15 knots this morning becoming north to NE this afternoon and remaining north to NE tonight.
GGW WATCHES/WARNINGS/ADVISORIES
None.
IMPORTANT This is an independent project and has no affiliation with the National Weather Service or any other agency. Do not rely on this website for emergency or critical information: please visit weather.gov for the most accurate and up-to-date information available.
textproduct.us is built and maintained by Joshua Thayer.