Area Forecast Discussion
Issued by NWS Glasgow, MT

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FXUS65 KGGW 220948

Area Forecast Discussion
National Weather Service GLASGOW MT
248 AM MST Sun Jan 22 2017

.SHORT TERM...for northeast through Tue...

Mist and fog overnight and into this morning with freezing
temperatures have led to slick road conditions and hoar frost
across many northeast Montana locations.

The general trough of low pressure across the region will finally
begin to lift north and east of the area later today, taking with
it, the low clouds and fog over our central and eastern zones.

A short period of upper-level ridging and no sensible weather is
expected to move through the northeast Montana this evening
through Monday morning.

By Monday evening, southwest flow aloft sets up and brings more
Pacific moisture and renewed chances for snow showers to the area.
The snow will approach from the west on Monday, then diminish away
to the south Monday night through Tuesday morning. Accumulations
will be light if anything at all.


.LONG TERM...Tue night through Sun...

Upper trof moves across the western states midweek with slight
chances of snow and cooler temperatures. A weak shortwave and cold
front will drop out of Canada on the northerly flow on Wednesday
for another round of light snow chances.

Upper ridge then pushes over the Rockies for drier weather
through the end of the week. Cooler temperatures should persist
until the weekend before another chinook begins to develop across




MVFR with occasional IFR conditions expected for most of the TAF
sites this morning with low clouds and fog spreading southeast
across the region. Flight conditions could improve briefly this
afternoon, especially at KGGW and KGDV, before deteriorating




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