One product issued by NWS for:
Hazardous Weather Outlook
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE PENDLETON OR 900 PM PDT THU MAY 23 2013 UPDATED TO REMOVE THUNDERSTORMS FOR THIS EVENING ORZ041-042-050-502-503-505>509-WAZ024-026-027-029-030-520-521- 241200- EASTERN COLUMBIA RIVER GORGE OF OREGON-NORTH CENTRAL OREGON- 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-FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON- NORTHWEST BLUE MOUNTAINS OF WASHINGTON- EAST SLOPES OF THE WASHINGTON CASCADES-SIMCOE HIGHLANDS- 900 PM PDT THU MAY 23 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...REST OF TONIGHT NO WIDESPREAD HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. A LARGE UPPER LOW PRESSURE SYSTEM WILL ALLOW SHOWERS TO DEVELOP OVERNIGHT. THUNDERSTORMS HAVE ENDED AND ARE NO LONGER A THREAT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THE ATMOSPHERE WILL REMAIN UNSETTLED AS THE UPPER LOW PRESSURE SYSTEM LINGERS OVER THE AREA THROUGH FRIDAY WITH MORE POSSIBLE AFTERNOON AND EVENING THUNDERSTORMS. ANOTHER LOW PRESSURE SYSTEM WILL MOVE INTO THE REGION ON SUNDAY AND AGAIN ON WEDNESDAY WHICH MAY PRODUCE ISOLATED AFTERNOON AND EVENING THUNDERSTORMS AGAIN. $$