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There are all the storms!

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A WINTER WEATHER ADVISORY has been issued in the Glacier region through Wednesday.

The Pacific is packed with storms. High and low pressures can act like a see-saw. Where there are numerous storm systems, a deep trough in the jet stream is created. Conversely, this creates a ridge in the jet stream under which there is quiet weather. This is the position Montana and much of the West has found itself in since Thanksgiving. This pattern will change slightly allowing a few weak systems into the region through the rest of this week and this weekend. The first minor low pressure will move through Montana on Wednesday with a little light rain and snow breaking out across the Rocky Mountain Front and out through north-central areas in the afternoon and evening. Marias Pass will see a few inches of accumulation but otherwise accumulation will be very light if at all. Thursday will be another bright December day with near average temperatures. Friday will be a mostly cloudy day with light snow showers in the western part of the state. Accumulation will be light. This weekend will be mostly cloudy with some snow showers mainly west of the Continental Divide. At this time there does not appear to be any major snow storms or arctic outbreaks through Christmas.
Have a great day.
Curtis Grevenitz
Chief Meteorologist