713
WGUS56 KPDT 230138
FFWPDT
ORC063-230230-
/O.NEW.KPDT.FF.W.0013.230823T0138Z-230823T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PENDLETON OR
638 PM PDT TUE AUG 22 2023
THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
THE DOUBLE CREEK BURN SCAR IN...
EAST CENTRAL WALLOWA COUNTY IN NORTHEASTERN OREGON...
* UNTIL 730 PM PDT.
* AT 638 PM PDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN OVER THE DOUBLE CREEK BURN SCAR. UP TO 0.5 INCHES OF
RAIN HAVE FALLEN. THE EXPECTED RAINFALL RATE IS 0.5 TO 1.5 INCHES
IN 1 HOUR. FLASH FLOODING IS ONGOING OR EXPECTED TO BEGIN SHORTLY.
EXCESSIVE RAINFALL OVER THE BURN SCAR WILL RESULT IN DEBRIS FLOW
MOVING THROUGH THE DOUBLE CREEK BURN SCAR. THE DEBRIS FLOW CAN
CONSIST OF ROCK, MUD, VEGETATION AND OTHER LOOSE MATERIALS.
HAZARD...FLASH FLOODING CAUSED BY THUNDERSTORMS IN AND AROUND
THE DOUBLE CREEK BURN SCAR.
SOURCE...RADAR.
IMPACT...FLOODING OF AREAS IN AND AROUND THE DOUBLE CREEK BURN
SCAR.
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
MAINLY RURAL AREAS OF EAST CENTRAL WALLOWA COUNTY
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
PLEASE REPORT OBSERVED FLOODING TO LOCAL EMERGENCY SERVICES OR LAW
ENFORCEMENT AND REQUEST THEY PASS THIS INFORMATION TO THE NATIONAL
WEATHER SERVICE WHEN YOU CAN DO SO SAFELY.
LAT...LON 4569 11674 4564 11672 4572 11666 4565 11649
4562 11646 4552 11662 4556 11661 4555 11663
4541 11671 4544 11660 4535 11665 4532 11680
4539 11684 4544 11677 4567 11682
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...0.5-1.5 INCHES IN 1 HOUR
CP
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