Area Forecast Discussion
Issued by NWS Missoula, MT

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FXUS65 KMSO 032146

Area Forecast Discussion
National Weather Service Missoula MT
246 PM MST TUE MAR 3 2015

.DISCUSSION...Cool northerly flow will persist over the Northern
Rockies through Wednesday. Due to arctic air in place, expect
mostly clear skies and cold temperatures tonight. Areas that
received fresh snow from Monday`s system will experience the
coldest readings. A very weak upper level disturbance will bring a
few showers along the Continental Divide this evening. Mostly
sunny skies with a 5 to 10 degree warming trend is expected
Wednesday compared to today.

A relatively warm and dry period is anticipated across the
Northern Rockies Thursday through early next week. Temperatures
will steadily climb to above the seasonal average for most
locations, as a high pressure ridge re-intensifies along the west
coast. In fact, daytime temperatures could exceed 60 degrees at
many north central Idaho and western Montana locations below 4000
feet. Aside from a very few high mountain snow showers, mainly
near Glacier Park, there are only minor expectations of
precipitation Thursday through Monday.

Long range models suggest that a shift in the large scale pattern
will arrive over the Northern Rockies by the middle of next week.
Details are fleeting, however a moist southwest flow appears to
develop for several days over the region, effectively squashing
the coastal ridge of high pressure and pushing the recent warm air
toward the central US. The biggest uncertainty is how significant
the surge of subtropical moisture will be during this time.


.AVIATION...Fair flying conditions are anticipated for all area
terminals. A weak disturbance will slide down along the
Continental Divide this evening which could create a few light
snow showers and brief mountain obscurations.



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