338
WGUS66 KPDT 212103
FFAPDT
URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE PENDLETON OR
203 PM PDT TUE APR 21 2026
.HEAVY RAINFALL IS EXPECTED TO DEVELOP OVER PORTIONS OF SOUTHEAST
WASHINGTON AND NORTHEAST OREGON TONIGHT THROUGH THURSDAY MORNING.
ORZ502-507-508-WAZ029-221315-
/O.NEW.KPDT.FA.A.0003.260422T0600Z-260424T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHERN BLUE MOUNTAINS OF OREGON-FOOTHILLS OF THE NORTHERN BLUE
MOUNTAINS OF OREGON-FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF
OREGON-FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-
INCLUDING THE CITIES OF ATHENA, WALLA WALLA, FOSSIL, PENDLETON,
HEPPNER, WAITSBURG, MEACHAM, PILOT ROCK, TOLLGATE, DAYTON, AND
CONDON
203 PM PDT TUE APR 21 2026
...FLOOD WATCH IN EFFECT FROM 11 PM PDT THIS EVENING THROUGH
THURSDAY EVENING...
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL IS POSSIBLE.
* WHERE...PORTIONS OF OREGON, INCLUDING THE FOLLOWING AREAS,
FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, FOOTHILLS OF
THE SOUTHERN BLUE MOUNTAINS OF OREGON AND NORTHERN BLUE MOUNTAINS
OF OREGON AND SOUTHEAST WASHINGTON, INCLUDING THE FOLLOWING AREA,
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON.
* WHEN...FROM 11 PM PDT THIS EVENING THROUGH THURSDAY EVENING.
* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF RIVERS,
CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS.
* ADDITIONAL DETAILS...
- THE BLUE MOUNTAINS ARE EXPECTED TO RECEIVE 3 TO 4 INCHES AND
THE BLUE MOUNTAIN FOOTHILLS ARE EXPECTED TO RECEIVE 1.5 TO
2.5 INCHES. THESE RAIN AMOUNTS MAY LEAD TO FLOODING,
ESPECIALLY ALONG SMALL CREEKS AND STREAMS. ANY FLOODING THAT
DEVELOPS IS NOT EXPECTED TO REACH THE LEVELS SEEN IN MID
MARCH 2026.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD
WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED
TO TAKE ACTION SHOULD FLOODING DEVELOP.
GP
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