textproduct: Glasgow

DISCUSSION

KEY MESSAGES:

- Temperature continues to swing with an unsettled weather pattern over the next week.

- Periods of light snow remain likely through the weekend.

WEATHER PATTERN OVERVIEW: Today and tonight: A warm front is currently making its way east out of Montana. Forecasted highs today are still warmer than we've seen the past few days, but they have since lowered with further model runs. A wintry mix of precipitation is possible briefly this afternoon before becoming fully snow by tonight.

Friday the weekend: A cold front and low pressure system drops into the region Friday night will bring the highest chance for 1-2" accumulations, mostly along a like southwest of Malta to Glendive. Light snowfall is looking to taper off by Sunday morning. Current total accumulations (today through Sunday) are between 1-3".

Next week: Upper level ridging over the PNW and high pressure in the intermountain west looks to continue our theme of embedded short-wave disturbances along persistent northwesterly flow. This could again bring warmer temperatures and repeating chances for rain, snow, and maybe some things in between across Montana.

FORECAST CONFIDENCE & DEVIATIONS: Blended HRRR and NBM90 for day 1-2 winds, NBM otherwise.

Today through tonight precip and temperatures: High confidence. Tomorrow through the weekend temperatures: High confidence. Tomorrow through the weekend precip: Moderate confidence.

AVIATION

LAST UPDATED: 0900Z

FLIGHT CAT RANGE: VFR - MVFR

DISCUSSION: A warm front passing through will bring LLWS around KGGW between until 12Z. West winds will remain steady through the TAF cycle. Lowering cloud bases and light snow showers will shift flight cat to MVFR after 0Z, but IFR conditions cannot be ruled out after 6Z tonight.

GGW WATCHES/WARNINGS/ADVISORIES

None.