353 AM PST SUN DEC 1 2013 ...THE CHANGE TO MUCH COLDER WEATHER FOR WESTERN WASHINGTON REMAINS FOR NEXT WEEK... RAIN ASSOCIATED WITH A STRONG PACIFIC FRONTAL SYSTEM IS EXPECTED CONTINUE INTO TONIGHT. THE COLD FRONT IS EXPECTED TO MOVE INLAND TONIGHT AND BEGIN USHERING IN A MUCH COLDER AIR MASS EARLY NEXT WEEK... THE INCOMING FRONTAL SYSTEM WILL HAVE A LOT OF MOISTURE WITH IT AND IS EXPECTED TO PRODUCE COPIOUS RAINFALL IN THE MOUNTAINS TODAY INTO TONIGHT. SNOW LEVELS SHOULD REMAIN ABOVE 4000 FEET. HEAVY RAINFALL WILL RESULT IN A LOT OF WATER ON ROADWAYS AND ROAD SPRAY WILL REDUCE VISIBILITIES. SNOW LEVELS WILL PLUNGE FOLLOWING THE COLD FRONT LATE TONIGHT...FALLING BELOW THE PASSES BY EARLY MONDAY MORNING... A MUCH COLDER AIR MASS WILL SPREAD SOUTH THROUGH WESTERN WASHINGTON MONDAY AND MONDAY NIGHT FROM THE INTERIOR OF WESTERN CANADA. BLUSTERY FRASER RIVER CANYON OUTFLOW WILL IMPACT WESTERN WHATCOM COUNTY AND THE SAN JUANS LATER MONDAY AND CONTINUE INTO TUESDAY. SNOW SHOWERS MAY ACCOMPANY CONVERGENCE ZONES ON MONDAY AND A COLD FRONT LATE MONDAY AFTERNOON OR MONDAY EVENING AS IT MOVES SOUTH THROUGH WESTERN WASHINGTON MONDAY. AT THIS TIME IT APPEARS THAT SPOTTY SNOWFALL ACCUMULATIONS OF AN INCH OR TWO ARE POSSIBLE IN THE INTERIOR MONDAY OR MONDAY EVENING. BE SURE TO MONITOR THE LATEST FORECASTS AS THIS SITUATION DRAWS CLOSER... COLD TEMPERATURES ARE EXPECTED MONDAY NIGHT THROUGH MUCH OF NEXT WEEK WITH TEMPERATURES RUNNING 10 TO 20 DEGREES BELOW AVERAGE FOR THIS TIME OF YEAR. LOWS IN WESTERN WASHINGTON IN THE MID TEENS AND 20S WILL BE COMMON...WITH HIGHS IN ONLY THE UPPER 20S TO MID 30S. |
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