748
WGUS86 KPDT 120343
FLSPDT
FLOOD ADVISORY
NATIONAL WEATHER SERVICE PENDLETON OR
843 PM PDT THU SEP 11 2025
ORC063-WAC013-120700-
/O.NEW.KPDT.FA.Y.0008.250912T0343Z-250912T0700Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WALLOWA OR-COLUMBIA WA-
843 PM PDT THU SEP 11 2025
..FLOOD ADVISORY IN EFFECT UNTIL MIDNIGHT PDT TONIGHT
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL IS EXPECTED.
* WHERE...PORTIONS OF NORTHEAST OREGON, INCLUDING THE FOLLOWING
COUNTY, WALLOWA AND SOUTHEAST WASHINGTON, INCLUDING THE FOLLOWING
COUNTY, COLUMBIA.
* WHEN...UNTIL MIDNIGHT PDT TONIGHT.
* IMPACTS...MINOR FLOODING IN LOW-LYING AND POOR DRAINAGE AREAS.
* ADDITIONAL DETAILS...
- AT 843 PM PDT, DOPPLER RADAR INDICATED HEAVY RAIN DUE TO
THUNDERSTORMS. MINOR FLOODING IS ONGOING OR EXPECTED TO BEGIN
SHORTLY IN THE ADVISORY AREA. BETWEEN 1 AND 1.5 INCHES OF
RAIN HAVE FALLEN.
- ADDITIONAL RAINFALL AMOUNTS UP TO 0.5 INCHES ARE EXPECTED
OVER THE AREA. THIS ADDITIONAL RAIN WILL RESULT IN MINOR
FLOODING.
- SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MAINLY RURAL AREAS OF NORTHWESTERN WALLOWA AND SOUTHEASTERN
COLUMBIA COUNTIES
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED
ROADS. FIND AN ALTERNATE ROUTE.
MOVE AWAY FROM RECENTLY BURNED AREAS. LIFE-THREATENING FLOODING OF
CREEKS, ROADS AND NORMALLY DRY ARROYOS IS LIKELY. THE HEAVY RAINS
WILL LIKELY TRIGGER ROCKSLIDES, MUDSLIDES AND DEBRIS FLOWS IN STEEP
TERRAIN, ESPECIALLY IN AND AROUND THESE AREAS.
FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS, RIVERS, OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.
LAT...LON 4607 11778 4607 11763 4598 11761 4593 11777
4587 11779 4586 11782 4586 11785 4586 11788
4586 11792 4592 11795 4598 11786 4602 11784
PDT
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