The National Weather Service released a special weather statement for unusually cold temperatures over the next week.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SEATTLE WA
318 PM PST MON DEC 2 2013
WAZ001-503>519-031230-
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-SOUTHWEST INTERIOR-
EAST PUGET SOUND LOWLANDS-WESTERN SKAGIT COUNTY-
EVERETT AND VICINITY-SEATTLE/BREMERTON AREA-TACOMA AREA-
ADMIRALTY INLET AREA-HOOD CANAL AREA-LOWER CHEHALIS VALLEY AREA-


OLYMPICS-EASTERN STRAIT OF JUAN DE FUCA-
WESTERN STRAIT OF JUAN DE FUCA-NORTH COAST-CENTRAL COAST-
WEST SLOPES NORTHERN CASCADES AND PASSES-
WEST SLOPES CENTRAL CASCADES AND PASSES-
318 PM PST MON DEC 2 2013
...UNUSUALLY COLD WEATHER WILL PREVAIL ACROSS WESTERN WASHINGTON
FOR THE NEXT WEEK...
A DEEP UPPER TROUGH OVER WESTERN WASHINGTON...ALONG WITH A
MODIFIED ARCTIC FRONT MOVING SOUTH THROUGH THE AREA...WILL
PRODUCE SCATTERED SHOWERS TONIGHT. THE SNOW LEVEL WILL BE JUST A
FEW HUNDRED FEET ABOVE SEA LEVEL...AND LOCAL SNOW ACCUMULATIONS
OF A HALF INCH TO TWO INCHES ARE POSSIBLE.
THE SHOWERS WILL END OVERNIGHT AS THE UPPER TROUGH MOVES INTO
OREGON...AND COLD DRY AIR WILL SPREAD SOUTH INTO WESTERN
WASHINGTON BEHIND THE ARCTIC FRONT. LOWS TONIGHT SHOULD BE IN THE
MID 20S TO LOWER 30S.
THE MODIFIED ARCTIC AIR WILL ARRIVE BY WAY OF THE FRASER RIVER
VALLEY IN SOUTHWEST BRITISH COLUMBIA...AND IT WILL PRODUCE WINDY
CONDITIONS IN WESTERN WHATCOM COUNTY AND THE SAN JUANS THROUGH
TUESDAY. WIND CHILLS THERE WILL BE AROUND 10 DEGREES. A WIND
ADVISORY WILL REMAIN IN EFFECT THERE THROUGH TUESDAY MORNING.
DRY COLD WEATHER WILL PREVAIL TUESDAY THROUGH THURSDAY. DAYTIME
HIGHS WILL BE IN THE UPPER 20S AND 30S WITH SUNSHINE...AND
OVERNIGHT LOWS WILL BE MAINLY IN THE 15 TO 25 DEGREE RANGE.
THE COLD WEATHER WILL PROBABLY CONTINUE FRIDAY THROUGH EARLY NEXT
WEEK. A WEAK WEATHER SYSTEM IN THE NORTHERLY FLOW ALOFT COULD
BRING SOME SNOW THURSDAY NIGHT AND FRIDAY...BUT THE CHANCE LOOKS
SLIM AT THIS POINT. ANOTHER WEATHER SYSTEM WILL BRING A CHANCE OF
SNOW LATE THIS WEEKEND OR EARLY NEXT WEEK.