Good Morning!

Cloudy and cold this morning with snow starting to spread north of the WA/OR border, (Pendleton already has 4" of new snow).  The next winter storm will push more snow into the region later this morning from south to north.  This system will produce significant snowfall (maybe some freezing rain/mix in the foothills) through tomorrow morning.  Expect the heaviest snow to fall in the Yakima/Kittitas Valleys, Blues, Cascades/Passes and East Slopes.  Avalanche danger will be high in the mountains due to heavy snowfall.  Winter Storm Warnings and Advisories are effect until tomorrow morning.   Here's my Snow Forecast for New Accumulation

 

Yakima/Kittitas Valleys…

- Timing: AM/Midday-10 AM Tuesday

- 5 to 10 "

- Possibly 12"

 

Tri-Cities/Columbia Basin/Foothills…

- Timing:  AM/Midday - 9-11 PM Tonight

- 2 to 6"

- Possible Freezing Rain, Sleet, Snow and Rain mix mainly in Foothills

 

East Slopes…

- Timing:  AM/Midday-Tuesday Afternoon

- 8 to 16"

 

Cascades/Passes…

- Timing:  AM/Midday-Tuesday Afternoon

- 1 to 3 ft.

- Expect Pass Closures for Avalanche Control

 

Blues…

- Timing: AM/Midday-Tuesday Morning

- Up to 1 ft.

 

It looks like most of us will get a little break Tuesday morning-afternoon.  Our active winter weather continues Tuesday-Wednesday with more snow (1-3") and maybe a little freezing rain.  Thursday looks dry with highs in the mid 20s-low 30s.  Snow develops overnight Thursday-Friday morning with pockets of freezing rain, sleet, rain/snow mix or all of the above.  Dry Friday afternoon, but the winds increase during the evening ahead of our next snow maker.  Gusty winds and accumulating snow possible Friday night-Saturday morning.

 

Models are trying to build a ridge into the region Saturday evening-Sunday.  That means cold sunshine for Sunday with highs in the 20s and lows in the teens.

 

Monty

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