The National Weather Service released a special weather statement forecasting cool temperatures and wind caused by a cold Canadian weather mass.

Special Weather Statement

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SEATTLE WA
140 PM PST SUN NOV 9 2014
WAZ001-503-504-506-507-509>517-555-556-558-559-567>569-101300-


SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-SOUTHWEST INTERIOR-
WESTERN SKAGIT COUNTY-EVERETT AND VICINITY-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-
EAST PUGET SOUND LOWLANDS-BELLEVUE AND VICINITY-
SEATTLE AND VICINITY-BREMERTON AND VICINITY-
CASCADES OF WHATCOM AND SKAGIT COUNTIES-
CASCADES OF SNOHOMISH AND KING COUNTIES-
CASCADES OF PIERCE AND LEWIS COUNTIES-
INCLUDING THE CITIES OF...FRIDAY HARBOR...BELLINGHAM...BLAINE...
LYNDEN...OLYMPIA...LACEY...TUMWATER...CENTRALIA...TOLEDO...
MOUNT VERNON...ANACORTES...SEDRO-WOOLLEY...BURLINGTON...EVERETT...
EDMONDS...LYNNWOOD...MARYSVILLE...ARLINGTON...TACOMA...LAKEWOOD...
PUYALLUP...SUMNER...PORT TOWNSEND...PORT LUDLOW...HOODSPORT...
BRINNON...MONTESANO...SEQUIM...PORT ANGELES...JOYCE...
CLALLAM BAY...NEAH BAY...LA PUSH...FORKS...HOQUIAM...ABERDEEN...
WESTPORT...OCEAN SHORES...GOLD BAR...ENUMCLAW...NORTH BEND...
BUCKLEY...BELLEVUE...KIRKLAND...REDMOND...ISSAQUAH...SEATTLE...
SHORELINE...FEDERAL WAY...KENT...BREMERTON...SILVERDALE...
MARBLEMOUNT...CONCRETE...SNOQUALMIE PASS...DARRINGTON...INDEX...
RANDLE...PACKWOOD...ASHFORD...MORTON
140 PM PST SUN NOV 9 2014
...COLDER TEMPERATURES AND LOCALLY WINDY CONDITIONS EXPECTED THIS WEEK...
A COLD CANADIAN AIR MASS WILL DIVE SOUTHWARD ON MONDAY AND SPREAD
ACROSS THE PACIFIC NORTHWEST MONDAY NIGHT THROUGH AT LEAST
WEDNESDAY. STRONG OFFSHORE FLOW WILL DEVELOP ON MONDAY ALLOWING
DRIER AIR TO FILTER INTO WESTERN WASHINGTON. HIGH TEMPERATURES
ACROSS THE LOWLANDS WILL BE IN THE LOW 50S ON MONDAY...THEN FALL
TO THE LOW TO MID 40S BY TUESDAY AND WEDNESDAY. CLEAR SKIES WILL
ALLOW OVERNIGHT TEMPERATURES TO COOL OFF DRAMATICALLY TUESDAY AND
WEDNESDAY. LOW TEMPERATURES AWAY FROM THE WATER ARE EXPECTED TO
FALL INTO THE LOW TO MID 20S. TYPICALLY MILDER SPOTS SUCH AS
SEATTLE CLOSER TO THE WATER WILL GET DOWN TO THE UPPER 20S OR LOW
30S. THIS WILL BE THE FIRST HARD FREEZE FOR SOME AREAS THIS
SEASON. BY WEDNESDAY NIGHT...A WEATHER SYSTEM WILL APPROACH AND SPREAD
CLOUDS INTO WESTERN WASHINGTON. TEMPERATURES WILL BEGIN TO
MODERATE AS A CHANCE OF PRECIPITATION RETURNS THURSDAY.
LOCALLY WINDY CONDITIONS ARE ALSO POSSIBLE AS STRONG OFFSHORE FLOW
DEVELOPS. FRASER OUTFLOW ACROSS THE NORTH INTERIOR SHOULD BEGIN
MONDAY NIGHT OR EARLY TUESDAY WITH GUSTS OVER 45 MPH POSSIBLE
THROUGH TUESDAY NIGHT. LOCATIONS SUCH AS
BELLINGHAM...BLAINE...SUMAS...AND THE SAN JUAND ARE PARTICULARLY
VULNERABLE TO FRASER OUTFLOW. IN ADDITION...STRONG EASTERLY WINDS
ARE ALSO EXPECTED ALONG THE FOOTHILLS DURING THIS PERIOD. WINDS
GUSTS IN EXCESS OF 45 MPH MAY DEVELOP...ESPECIALLY NEAR THE
CASCADE GAPS AFFECTING PLACES LIKE ENUMCLAW AND NORTH BEND. STAY
TUNED TO THE LATEST FORECASTS FOR UPDATES ON THE CHANGING WEATHER.