Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
115 PM PDT TUE JUN 18 2013

UPDATED DAY ONE DISCUSSION

ORZ041-042-044-049-050-502-503-505>509-WAZ024-026>030-520-521-
191215-
EASTERN COLUMBIA RIVER GORGE OF OREGON-NORTH CENTRAL OREGON-
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-
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 OF WASHINGTON-
EAST SLOPES OF THE WASHINGTON CASCADES-SIMCOE HIGHLANDS-
115 PM PDT TUE JUN 18 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
OREGON...NORTH CENTRAL OREGON...NORTHEAST OREGON...CENTRAL
WASHINGTON...SOUTH WASHINGTON...SOUTH CENTRAL WASHINGTON AND
SOUTHEAST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

A LARGE UPPER LOW WILL CONTINUE TO MOVE TOWARDS THE PACIFIC
NORTHWEST COAST AND WILL COME ASHORE LATE TONIGHT. DISTURBANCES
ROTATING AROUND THE LOW ALONG WITH DAYTIME HEATING WILL CAUSE THE
DEVELOPMENT OF SCATTERED SHOWERS AND THUNDERSTORMS THROUGH TONIGHT.
A FEW THUNDERSTORMS MAY BRING PENNY TO NICKEL SIZE HAIL AND WIND
GUSTS TO 50 MPH...MAINLY IN EASTERN GRANT, UNION, AND WALLOWA
COUNTIES.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THE UPPER LOW WILL CROSS THE AREA ON WEDNESDAY WITH A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF AFTERNOON AND EVENING
THUNDERSTORMS. THE LOW WILL TRACK OFF TO THE NORTHEAST THURSDAY
AND FRIDAY WITH A CHANCE OF SHOWERS EACH DAY AND A SLIGHT CHANCE
OF THUNDERSTORMS ALONG THE HIGHER TERRAIN OF WALLOWA COUNTY.
SATURDAY AND SUNDAY WEAK HIGH PRESSURE WILL LEAD TO DRY AND FAIR
CONDITIONS. ANOTHER DISTURBANCE WILL MOVE INTO THE AREA ON MONDAY
WITH A SLIGHT CHANCE OF SHOWERS AND A SLIGHT CHANCE OF AFTERNOON
THUNDERSTORMS IN THE EASTERN OREGON MOUNTAINS.

$$

Special Weather Statement

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PENDLETON OR
1158 AM PDT TUE JUN 18 2013

ORZ050-503-509-WAZ520-191300-
WALLOWA COUNTY-SOUTHERN BLUE MOUNTAINS OF OREGON-
EAST SLOPES OF THE OREGON CASCADES-
EAST SLOPES OF THE WASHINGTON CASCADES-
INCLUDING THE CITIES OF...ENTERPRISE...JOSEPH...WALLOWA...
LONG CREEK...NORTH POWDER...UKIAH...BEND...CAMP SHERMAN...
LA PINE...SISTERS...SUNRIVER...APPLETON...CLE ELUM...CLIFFDELL...
EASTON...ROSLYN...TROUT LAKE
1158 AM PDT TUE JUN 18 2013

...COLD AND WET IN THE MOUNTAINS WITH SNOW IN THE HIGHER TERRAIN
OVER THE NEXT SEVERAL DAYS...

A LARGE LOW PRESSURE SYSTEM OFF THE COAST WILL MOVE INLAND TONIGHT
THEN WILL REMAIN STATIONARY OVER WASHINGTON AND OREGON WEDNESDAY
AND THURSDAY. COLDER AIR WILL SPREAD EAST OF THE CASCADES...AND
SNOW LEVELS WILL LOWER TO NEAR 6500 FEET. SNOW WILL DEVELOP IN THE
HIGHER TERRAIN OF THE CASCADES...THE EAGLE CAP WILDERNESS...THE
ELKHORN MOUNTAINS...AND THE STRAWBERRY WILDERNESS. THREE TO SIX INCHES
OF SNOW CAN BE EXPECTED ABOVE 6500 FEET TONIGHT THROUGH THURSDAY.

CAMPERS...HIKERS...AND OTHER OUTDOOR ENTHUSIAST SHOULD BE PREPARED
FOR COLD AND WET CONDITIONS IN THE MOUNTAINS AS WELL AS SNOW IN
THE HIGHER TERRAIN.

$$