Freezing Rain Advisory and Hazardous Weather

Freezing Rain Advisory
URGENT - WINTER WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
511 AM PST THU DEC 31 2009


...A MAJOR WINTER STORM WILL MOVE INTO THE REGION TODAY BRINGING A MIX OF WINTRY PRECIPITATION ACROSS THE FORECAST AREA...


FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON-FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-INCLUDING THE CITIES OF ...HEPPNER...PENDLETON...DAYTON...WAITSBURG...WALLA WALLA
511 AM PST THU DEC 31 2009

...FREEZING RAIN ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 4 PM PST THIS AFTERNOON...

* A BRIEF PERIOD OF SNOW AND OR FREEZING RAIN IS EXPECTED BY
MIDDAY TODAY BEFORE CHANGING TO RAIN THIS AFTERNOON.

* LESS THAN 1 INCH OF SNOW ACCUMULATIONS ARE EXPECTED. ICE
ACCUMULATIONS OF LESS THAN ONE QUARTER INCH ARE EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.


Hazardous Weather Outlook
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
530 AM PST THU DEC 31 2009

ORZ041>044-049-050-501>506-WAZ024-026>030-501-502-011330-
EASTERN COLUMBIA RIVER GORGE OF OREGON-NORTH CENTRAL OREGON-CENTRAL OREGON-LOWER COLUMBIA BASIN OF OREGON-GRANDE RONDE VALLEY-WALLOWA COUNTY-FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON-NORTHERN BLUE MOUNTAINS OF OREGON-SOUTHERN BLUE MOUNTAINS OF OREGON-
NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES-JOHN DAY BASIN-OCHOCO-JOHN DAY HIGHLANDS-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 CENTRAL CASCADES OF WASHINGTON-EAST SLOPES OF THE SOUTHERN CASCADES OF WASHINGTON-
530 AM PST THU DEC 31 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGONAS WELL AS SOUTH CENTRAL AND
SOUTHEAST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

WINTER MIX
EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON, EAST SLOPES OF THE SOUTHERN CASCADES OF WASHINGTON, EASTERN COLUMBIA RIVER GORGE OF WASHINGTON, KITTITAS VALLEY, YAKIMA VALLEY, LOWER COLUMBIA BASIN OF WASHINGTON, EASTERN COLUMBIA RIVER GORGE OF OREGON, NORTH CENTRAL OREGON, CENTRAL OREGON, LOWER COLUMBIA BASIN OF OREGON, NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES

SNOW
NORTHWEST BLUE MOUNTAINS, GRANDE RONDE VALLEY, WALLOWA COUNTY, NORTHERN BLUE MOUNTAINS OF OREGON, SOUTHERN BLUE MOUNTAINS OF OREGON, JOHN DAY BASIN, OCHOCO-JOHN DAY HIGHLANDS

FREEZING RAIN
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON, FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON

A STRONG PACIFIC STORM WILL MOVE INTO THE REGION TODAY AND BRING A MIXTURE OF WINTRY PRECIPITATION TO THE FORECAST AREA. MOST AREAS WILL RECEIVE SIGNIFICANT AMOUNTS OF SNOW...OR SNOW CHANGING TO FREEZING RAIN...AND POSSIBLY ALL RAIN IN SOME AREAS. THIS STORM IS EXPECTED TO HAVE A MAJOR IMPACT TO THE ENTIRE FORECAST AREA. NUMEROUS WINTER STORM WARNINGS OR WINTER WEATHER ADVISORIES ARE IN EFFECT FOR TODAY THROUGH TONIGHT AND EARLY NEW YEARS DAY.

AN AIR STAGNATION ADVISORY REMAINS IN EFFECT THROUGH 10 AM THIS MORNING FOR THE YAKIMA VALLEY WITH LIGHT WINDS AND CONTINUED TRAPPED POLLUTANTS IN THE AIR.