MSN Live Space News Blog.

Issued by The National Weather Service
Seattle/Tacoma, WA
3:30 pm PST, Sat., Dec. 25, 2010

WINTER WEATHER IS HEADING TO WESTERN WASHINGTON BETWEEN CHRISTMAS AND NEW YEARS DAY…

SEVERAL WINTER WEATHER EVENTS ARE COMING NEXT WEEK… INCLUDING THE POSSIBILITY OF LOWLAND SNOW BEGINNING ABOUT WEDNESDAY.

FIRST UP IS SNOW IN THE MOUNTAINS SUNDAY NIGHT AND MONDAY MORNING. THE SNOW LEVEL WILL FALL TO AS LOW AS 1000 FEET… SO ALL MOUNTAIN PASSES WILL SEE SNOW. THE AMOUNTS LOOK LIKE THEY WILL BE IN THE ADVISORY RANGE… PERHAPS 6 TO 10 INCHES OVERNIGHT.

THE SECOND WINTER WEATHER EVENT IS A MUCH HEAVIER MOUNTAIN SNOWFALL PREDICTED FOR MONDAY NIGHT AND TUESDAY. STRONG WESTERLY FLOW ALOFT AND A MOIST AIR MASS WILL CREATE A CLASSIC HEAVY SNOW PRODUCING PATTERN FOR THE MOUNTAINS. ONE TO THREE FEET OF NEW SNOW IS POSSIBLE MONDAY NIGHT AND TUESDAY.

FINALLY… AND POSSIBLY OF MOST INTEREST… THERE IS A CHANCE OF LOWLAND SNOW BEGINNING ABOUT WEDNESDAY AND LASTING INTO THURSDAY NIGHT. A DEEP UPPER TROUGH WILL SETTLE OVER WESTERN WASHINGTON. PRECIPITATION WILL BE SHOWERY AND WILL DIMINISH BY THURSDAY. HOWEVER IT IS LIKELY THAT AT LEAST SOME OF THE PRECIPITATION WILL BE IN THE FORM OF SNOW. WITH HIGH TEMPERATURES IN THE 30S AND LOWS IN THE 20S… SOME OF THE SNOW WILL STICK.

THIS SNOWFALL IS STILL FOUR DAYS AWAY AND THE FORECAST COULD CHANGE. THE PRECIPITATION CURRENTLY LOOKS MORE SHOWERY IN THE MODELS RATHER THAN A WIDESPREAD SYNOPTIC SNOW EVENT. SHOWERS WOULD IMPLY A MORE HIT OR MISS SNOW EVENT. STILL… LOWLAND SNOW IS USUALLY A BIG EVENT AROUND WESTERN WASHINGTON… SO STAY INFORMED.

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