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
- Winds and any showers diminish this evening.
- Cool and breezy Saturday with a few showers over the NE zones.
- Cold front late Tuesday will bring showers and thunderstorms. Severe thunderstorms are not expected.
- Cool and breezy Wednesday.
- No Fire Weather concerns through the period.
DISCUSSION
WEATHER PATTERN OVERVIEW: A strong upper low over central Canada will keep the Canadian polar airmass across northeast Montana through the weekend.
In the meantime, an upper disturbance moving southeast into Montana today (along with a weak cold front) has helped to generate showers and thunderstorms across mainly central Montana. Some of these will move southeast mainly across the central and southern zones that will dissipate this evening but a wind gust about 50-55 mph cannot be ruled out over the SW zones late this afternoon. Stronger/possibly severe storms will stay over central Montana.
Surface high pressure over Alberta will drift into the area tonight and Saturday but some remaining instability Saturday afternoon will lead to NW winds and some showers over at least the northeast zones.
Saturday night will be the coolest night if clouds can clear out of the area. If that happens, temps in the cooler valleys would be in the upper 30s.
Sunday through Tuesday: a slight warming trend takes place before the next cold front arrives Tuesday evening. This cold front looks to bring about a quarter of an inch over the northern zones with dry conditions over parts of the SW zones.
Cooler and breezy conditions are expected in its wake Wednesday with high temps 5 to 10 degrees below normal. A slight warming is expected through Friday.
FORECAST CONFIDENCE & DEVIATIONS:
Made slights adjustments to the pops and winds for today to account for slight under forecasting of both recently. Rest of the forecast followed the NBM. TFJ
AVIATION
VFR.
A few showers may be in the vicinity of KGGW and KOLF through about 01z. Then NW winds and clouds will diminish this evening.
Cumulus clouds will increase again Saturday late morning. Showers may also return Saturday afternoon along with a NW wind at about 15-20 with gusts to 30 kts. TFJ
GGW WATCHES/WARNINGS/ADVISORIES
Lake Wind Advisory until 9 PM MDT this evening for Central and Southeast Phillips-Central and Southern Valley-Garfield-McCone- Petroleum.
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.