Irrigon OR Weather Forecast Irrigon 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
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 STRONG HIGH PRESSURE RIDGE ALOFT WITH VERY
LIGHT OR CALM SURFACE WINDS AND STRONG SURFACE BASED TEMPERATURE
INVERSIONS WILL MAINTAIN A STABLE AIRMASS AND STAGNANT AIR
CONDITIONS...WHICH WILL TRAP AIR POLLUTANTS IN THE BOUNDARY LAYER.
AS SUCH AN AIR STAGNATION ADVISORY IS IN EFFECT FOR THE AREAS LISTED
ABOVE. PLEASE REFER TO PDXNPWPDT FOR MORE DETAILS.

SHOW SHOWERS WILL BE POSSIBLE ACROSS EASTERN OREGON.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

AIR STAGNATION ADVISORY UNTIL 4 PM PST MONDAY
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

STRONG TEMPERATURE INVERSIONS WILL CAUSE STABLE CONDITIONS...LOW
MIXING HEIGHTS AND VERY LIGHT OR CALM WINDS TO PERSIST THROUGH
MONDAY. AS A RESULT THE AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4
PM PST MONDAY. PLEASE REFER TO PDXNPWPDT FOR MORE DETAILS.

MULTIPLE WEATHER SYSTEMS ARE EXPECTED TO MOVE THROUGH THE REGION
LATER THIS WEEK...WITH INCREASED PRECIPITATION CHANCES TUESDAY
THROUGH SATURDAY.

.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.