textproduct: Glasgow

KEY MESSAGES

- A Red Flag Warning is in effect until 9 pm Friday evening. - A High Wind Warning is in effect through midnight tonight but the highest winds should be exiting the area by 6 to 9 pm. A Blowing Dust Advisory is in effect until 6 pm

- Strong west winds will continue on Friday but they will be not as strong as they will be today.

- Colder conditions are expected Sunday and Monday. Overnight temperatures are expected to be near freezing. Some snow is also a possibility.

DISCUSSION

WEATHER PATTERN OVERVIEW:

Stacked surface and upper low will drift from southern Saskatchewan to Manitoba tonight. The strongest winds will subside and the High Wind Warning expiring at midnight looks good. A Blowing Dust Advisory is in effect until 6 pm and this also looks like a good ending point.

Friday, the winds will increase a bit but not be as strong as today. 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 Sunday allowing an increase in lift and possibly rain for the area. The models are showing the upper low to dig into the central Rockies Monday 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. Weather grids right now spelling out for just Sunday night. Will have to keep an eye out for this one if the models bring this system further north, there could be significant impacts.

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: A blend with the GLAMP in wind grids were made. No other deviations were made. TFJ

AVIATION

LAST UPDATED: 1900Z

FLIGHT CAT RANGE: LIFR/IFR Conditions should become VFR this evening.

DISCUSSION:

Strong low pressure over southern Saskatchewan today will finally lift to the northeast and allow the strong winds to relax. As a result, blowing dust should end by this evening.

Windy conditions will resume Friday but not nearly as strong as today.

Mainly clear skies are expected tonight and Friday.

EQUIPMENT: No obs from KSDY. TAF will be AMD NOT SKED until obs return.

CLIMATE

The Glasgow Airport ASOS reported a peak wind gust of 82 mph this morning. This broke the old May record of 69 mph set last year. TFJ

GGW WATCHES/WARNINGS/ADVISORIES

High Wind Warning until midnight MDT tonight for Central and Southeast Phillips-Central and Southern Valley-Daniels-Dawson- Eastern Roosevelt-Garfield-McCone-Northern Phillips-Northern Valley-Petroleum-Prairie-Richland-Sheridan-Southwest Phillips- Western Roosevelt-Wibaux.

Red Flag Warning until 9 PM MDT Friday 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.

Blowing Dust Advisory until 6 PM MDT this evening for Central and Southeast Phillips-Central and Southern Valley-Daniels- Dawson-Eastern Roosevelt-McCone-Richland-Sheridan-Western Roosevelt.