746  
WWUS86 KPDT 031156  
SPSPDT  
 
SPECIAL WEATHER STATEMENT  
NATIONAL WEATHER SERVICE PENDLETON OR  
456 AM PDT FRI NOV 3 2017  
 
ORZ041-044-049-050-502-503-505>511-WAZ024-026>030-520-521-041400-  
EAST COLUMBIA RIVER GORGE-LOWER COLUMBIA BASIN OF OREGON-  
GRANDE RONDE VALLEY-WALLOWA COUNTY-  
NORTHERN BLUE MOUNTAINS OF OREGON-  
SOUTHERN BLUE MOUNTAINS OF OREGON-JOHN DAY BASIN-OCHOCO-  
JOHN DAY HIGHLANDS-  
FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON-  
FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON-  
EAST SLOPES OF THE OREGON CASCADES-NORTH CENTRAL OREGON-  
CENTRAL OREGON-EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-  
KITTITAS VALLEY-YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-  
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-  
NORTHWEST BLUE MOUNTAINS-EAST SLOPES OF THE WASHINGTON CASCADES-  
SIMCOE HIGHLANDS-  
INCLUDING THE CITIES OF ARLINGTON, THE DALLES, BOARDMAN,  
HERMISTON, IONE, COVE, ELGIN, LA GRANDE, UNION, ENTERPRISE,  
JOSEPH, WALLOWA, MEACHAM, TOLLGATE, LONG CREEK, NORTH POWDER,  
UKIAH, DAYVILLE, JOHN DAY, MITCHELL, MONUMENT, SPRAY, BROTHERS,  
PAULINA, PRAIRIE CITY, SENECA, ATHENA, PENDLETON, PILOT ROCK,  
HEPPNER, CONDON, FOSSIL, CAMP SHERMAN, LA PINE, SISTERS,  
SUNRIVER, DUFUR, MAUPIN, MORO, BEND, MADRAS, PRINEVILLE, REDMOND,  
WHITE SALMON, ELLENSBURG, THORP, NACHES, SUNNYSIDE, TOPPENISH,  
YAKIMA, CONNELL, PROSSER, TRI-CITIES, DAYTON, WAITSBURG,  
WALLA WALLA, SKI BLUEWOOD RESORT, APPLETON, CLE ELUM, CLIFFDELL,  
GOLDENDALE, AND BICKLETON  
456 AM PDT FRI NOV 3 2017  
   
..COLDER AND WET CONDITIONS EXPECTED THROUGH THE WEEKEND
 
 
A LARGE UPPER LEVEL LOW PRESSURE AREA IS APPROACHING THE REGION  
AND WILL LINGER THROUGH THE WEEKEND. SIGNIFICANTLY COOLER  
CONDITIONS WILL ENTER THE INTERIOR PACIFIC NORTHWEST. RAIN AND  
SNOW WILL BE MAINLY OVER THE CASCADES AND OREGON TODAY WITH SNOW  
LEVELS BETWEEN 2500 AND 4000 FEET. A BREAK IN THE WIDESPREAD  
PRECIPITATION IS EXPECTED SATURDAY AND THEN ANOTHER SYSTEM WITH  
PRECIPITATION AND EVEN COLDER AIR WILL ARRIVE SATURDAY NIGHT AND  
SUNDAY. SNOW LEVELS WILL LOWER FURTHER TO 500 TO 1000 FEET IN  
WASHINGTON AND 1000 TO 2500 FEET IN OREGON. ACCUMULATING SNOW CAN  
BE EXPECTED AT THE HIGHER PASS LEVELS, WITH THE FIRST SNOW OF THE  
SEASON POSSIBLE AS LOW AS THE VALLEY FLOORS. SOME ACCUMULATING  
SNOW IS POSSIBLE FOR THE YAKIMA AND KITTITAS VALLEY SATURDAY NIGHT  
AND SUNDAY. ACCUMULATING SNOW IS NOT EXPECTED FOR THE LOWEST  
ELEVATIONS OF THE COLUMBIA BASIN, WITH A CHILLY RAIN PREVAILING.  
TRAVELERS TO THE HIGHER ELEVATIONS SHOULD BE PREPARED FOR REDUCED  
VISIBILITY IN SNOW, AND FOR SLICK ROADWAYS.  
 

 
 
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