textproduct: Glasgow

KEY MESSAGES

- Red Flag Warning in effect until 9 PM this evening.

- Lake Wind Advisory in effect until 9 PM this evening with waves up to 5 ft. - Gusty west winds will continue this afternoon. Visibility reductions from blowing dust at times in the afternoon.

- Widespread rain beginning Saturday night lasting through Tuesday. Overnight temperatures Monday and Tuesday are expected to be near freezing.

DISCUSSION

WEATHER PATTERN OVERVIEW:

During the day today winds will increase, but not be as strong as days previous. The surface low will drift into western Ontario while a slow moving cold front drops south close to the Montana/Canada border.

An upper trough will move into Montana on Saturday allowing an increase in lift and possibly rain for the area. The models are showing the upper low to dig into the central Rockies Sunday that will push the precipitation shield to our south but the CWA may be lucky enough to be on the northern edge of it. Some of the models are showing it to be cold enough for snow, though periods of mixed precipitation during the nighttime hours is more likely.

The upper trough begins to lift out Tuesday so a return to more normal conditions can be expected for the remainder of the seven days.

FORECAST CONFIDENCE & DEVIATIONS: Increased PoPs using a blend of HiRes models to account for weak instability this afternoon.

AVIATION

LAST UPDATED: 0700Z

FLIGHT CAT RANGE: VFR, MVFR this afternoon.

DISCUSSION:

Gusty west winds return in the afternoon today before lessening tonight. Visibility reductions from blowing dust at times in the afternoon creating areas of MVFR conditions.

LLWS:

Areas of LLWS over KGDV through 12Z.

EQUIPMENT: KSDY will remain AMD NOT SKED.

FIRE WEATHER

Critical fire weather will continue today across northeast Montana. Gusty west winds 25 to 35 mph with gusts to 40 mph are expected today with min RH in the 20s in most areas and in the 30s near the Canadian Border.

Winds will lighten tonight, lowering to 5 to 10 mph with nighttime recovery RH in the 50s in most areas and 60 to 70 north of HWY 2.

GGW WATCHES/WARNINGS/ADVISORIES

Red Flag Warning until 9 PM MDT this evening for Dawson/McCone/Prairie/Richland/Wibaux Counties-Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties-Northern Valley and Northern Phillips Counties-Southern Petroleum and Southern Garfield Counties-The Little Rockies-The Lower Missouri River Breaks including the Charles M Russell National Wildlife Refuge.

Lake Wind Advisory until 9 PM MDT this evening for Central and Southeast Phillips-Central and Southern Valley-Garfield-McCone- Petroleum.