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Weather Alert
    Other Weather Alerts
Type SPECIAL WEATHER STATEMENT
Issued By NATIONAL WEATHER SERVICE PORTLAND OR
Issuing Time Sat, 03 Dec 2016 13:54:00 PST
Broadcast Time Sat, 03 Dec 2016 13:54:00 PST
Valid Until Sun, 04 Dec 2016 15:00:00 PST
Brief Description SPECIAL WEATHER STATEMENT
Detailed Description NORTH OREGON COAST-CENTRAL OREGON COAST- COAST RANGE OF NORTHWEST OREGON- CENTRAL COAST RANGE OF WESTERN OREGON-LOWER COLUMBIA- GREATER PORTLAND METRO AREA-CENTRAL WILLAMETTE VALLEY- SOUTH WILLAMETTE VALLEY-NORTHERN OREGON CASCADE FOOTHILLS- NORTHERN OREGON CASCADES-CASCADE FOOTHILLS IN LANE COUNTY- CASCADES IN LANE COUNTY-UPPER HOOD RIVER VALLEY- WESTERN COLUMBIA RIVER GORGE-CENTRAL COLUMBIA RIVER GORGE- SOUTH WASHINGTON CASCADES-WILLAPA HILLS-SOUTH WASHINGTON COAST-I- 5 CORRIDOR IN COWLITZ COUNTY-GREATER VANCOUVER AREA- SOUTH WASHINGTON CASCADE FOOTHILLS- INCLUDING THE CITIES OF...ASTORIA...CANNON BEACH...TILLAMOOK... NETARTS...PACIFIC CITY...LINCOLN CITY...NEWPORT... CAPE FOULWEATHER...YACHATS...FLORENCE...VERNONIA...JEWELL... SUNSET SUMMIT...LEES CAMP...TRASK...GRANDE RONDE...BURNT WOODS... TIDEWATER...SWISSHOME...VENETA...ST. HELENS...CLATSKANIE... HILLSBORO...PORTLAND...WILSONVILLE...OREGON CITY...GRESHAM... TROUTDALE...SALEM...MCMINNVILLE...WOODBURN...STAYTON...DALLAS... EUGENE...SPRINGFIELD...CORVALLIS...ALBANY...LEBANON...SANDY... ESTACADA...SILVER FALLS STATE PARK...SWEET HOME... GOVERNMENT CAMP...DETROIT...SANTIAM PASS...VIDA...JASPER... LOWELL...COTTAGE GROVE...MCKENZIE PASS...MCKENZIE BRIDGE... OAKRIDGE...WILLAMETTE PASS...PARKDALE...ODELL...CORBETT... ROOSTER ROCK...MULTNOMAH FALLS...CASCADE LOCKS...HOOD RIVER... COLDWATER RIDGE VISITORS CENTER...MOUNT ST. HELENS... WIND RIVER VALLEY...WILLAPA...FRANCES...ELK MOUNTAIN... RYDERWOOD...RAYMOND...LONG BEACH...OCEAN PARK...NASELLE... CATHLAMET...CAPE DISAPPOINTMENT...LONGVIEW...KELSO... CASTLE ROCK...VANCOUVER...BATTLE GROUND...RIDGEFIELD... WASHOUGAL...YACOLT...AMBOY...TOUTLE...ARIEL...LAKE MERWIN... YALE LAKE...COUGAR...NORTH BONNEVILLE...STEVENSON...CARSON... UNDERWOOD 154 PM PST SAT DEC 3 2016 ...WINTRY PRECIPITATION MIX POSSIBLE TO LOW ELEVATIONS OF SOUTHWEST WASHINGTON AND NORTHWEST OREGON LATE SUNDAY NIGHT AND MONDAY... THERE IS A DECENT CHANCE OF SEEING SOME SNOW TO LOW ELEVATIONS OF SOUTHWEST WASHINGTON AND NORTHWEST OREGON LATE SUNDAY NIGHT AND MONDAY. AS COOLER AND SOMEWHAT DRIER AIR SPREADS INTO THE AREA LATE SUNDAY AND SUNDAY NIGHT IN THE WAKE OF A STRONG COLD FRONT SUNDAY...THIS SETS THE STAGE FOR PRECIPITATION FROM THE NEXT SYSTEM LATE SUNDAY NIGHT AND MONDAY BEING SNOW DOWN TO LOW ELEVATIONS. WHEN THE AIR IS RELATIVELY COOL AND DRY LIKE WHAT IS EXPECTED SUNDAY NIGHT...AS PRECIPITATION FIRST BEGINS TO FALL EVAPORATIVE COOLING FROM THE PRECIPITATION CAN CAUSE ADDITIONAL COOLING AND LOWER THE SNOW LEVEL EVEN MORE. WEATHER MODELS ARE SHOWING INDICATIONS THAT THIS WILL TAKE PLACE. WARM GROUND AND ROAD SURFACES WILL CAUSE ANY SNOW THAT FALLS TO THE VALLEY FLOORS TO INITIALLY MELT AND HAVE LITTLE OR MINOR IMPACT...BUT IF ENOUGH SNOW FALLS OR IF THE INTENSITY IS ENOUGH SOME MAY BEGIN TO STICK. THE CURRENT IDEA IS THAT PERHAPS UP TO AN INCH IS POSSIBLE. THE BEST CHANCE OF ACCUMULATING SNOW IS FROM ABOUT SALEM NORTHWARD...BUT THAT DELINEATION IS VERY APPROXIMATE. A MIX OF RAIN AND SNOW IS ALSO POSSIBLE NEAR THE COAST...BUT CHANCES OF STICKING SNOW ARE MORE REMOTE AT THE COAST. IN THE CASCADES...6 INCHES OR MORE OF SNOW ARE POSSIBLE LATE SUNDAY NIGHT AND MONDAY. IN THE CASCADE FOOTHILLS AND THE COASTAL MOUNTAINS...AMOUNTS COULD REACH 1 TO 3 OR 1 TO 4 INCHES. TRAVEL THROUGH THE CASCADE AND COASTAL PASSES WILL PROBABLY BE DIFFICULT AS ROADS WILL LIKELY BECOME SNOW COVERED AND SLICK. BE SURE TO CONTINUE TO MONITOR THE LATEST FORECASTS AND STATEMENTS ABOUT THE UPCOMING WINTER WEATHER LATE SUNDAY NIGHT AND MONDAY.
       
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