Walla Walla WA Weather Forecast Walla Walla Current Weather

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

.DAY ONE...TODAY AND TONIGHT

AIR STAGNATION ADVISORY TODAY AND TONIGHT
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, FOOTHILLS OF THE BLUE MOUNTAINS
OF WASHINGTON, EASTERN COLUMBIA RIVER GORGE OF OREGON, NORTH
CENTRAL OREGON, CENTRAL OREGON, LOWER COLUMBIA BASIN OF
OREGON, GRANDE RONDE VALLEY, FOOTHILLS OF THE BLUE MOUNTAINS
OF OREGON, NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES,
JOHN DAY BASIN

THE COMBINATION OF A HIGH PRESSURE RIDGE ALOFT WITH LIGHT SURFACE
WINDS AND STRONG SURFACE BASED TEMPERATURE INVERSIONS WILL LEAD TO
INCREASING AREAS OF FOG AND/OR LOW CLOUDS BEGINNING TODAY AND
TONIGHT. THIS WILL RESULT IN STAGNANT AIR CONDITIONS WITH INCREASING
TRAPPED POLLUTANTS IN THE AREAS LISTED ABOVE. AS SUCH AN AIR
STAGNATION ADVISORY IS IN EFFECT FOR THESE AREAS. PLEASE REFER TO
PDXNPWPDT FOR MORE DETAILS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

AIR STAGNATION ADVISORY FRIDAY AND SATURDAY
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, FOOTHILLS OF THE BLUE MOUNTAINS
OF WASHINGTON, EASTERN COLUMBIA RIVER GORGE OF OREGON, NORTH
CENTRAL OREGON, CENTRAL OREGON, LOWER COLUMBIA BASIN OF
OREGON, GRANDE RONDE VALLEY, FOOTHILLS OF THE BLUE MOUNTAINS
OF OREGON, NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES,
JOHN DAY BASIN

THE AIR STAGNATION ADVISORY IN IN EFFECT THROUGH 4 PM SATURDAY
AFTERNOON DUE TO LIGHT WINDS...STRONG SURFACE BASED TEMPERATURE
INVERSIONS AND A HIGH PRESSURE RIDGE ALOFT CREATING STAGNANT
CONDITIONS IN THE AREAS LISTED ABOVE. PLEASE REFER TO PDXNPWPDT FOR
MORE DETAILS. ELSEWHERE OTHER THAN THE AREAS LISTED ABOVE MOSTLY
CLEAR SKIES WITH SLOWLY MODERATING TEMPERATURES AND DRY CONDITIONS
ARE EXPECTED THROUGH THE WEEKEND. WEATHER SYSTEMS ARE THEN EXPECTED
TO RETURN TO THE REGION NEXT WEEK WITH A THREAT OF RAIN OR SNOW
ACROSS THE FORECAST AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

GRAPHICAL FORECASTS OF WEATHER HAZARDS OUT TO SEVEN DAYS
ARE DISPLAYED ON THE WORLD WIDE WEB AT:

WWW.WRH.NOAA.GOV/PDT/CURRENTHAZARDS/HWO.HTML

ALL LETTERS IN THE ABOVE URL ARE LOWER CASE...EXCEPT THE H IN
CURRENTHAZARDS.