Flood Potential Outlook
Issued by NWS Pendleton, OR

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FGUS76 KPDT 151245
ESFPDT
ORZ050-502-503-505-506-509-WAZ030-520-152300-

HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
545 AM PDT SUN MAR 15 2015

...PERIODS OF HEAVY RAIN EXPECTED THROUGH THIS EVENING...

A PACIFIC STORM WITH AMPLE MOISTURE WILL CONTINUE TO MOVE ACROSS
THE REGION THROUGH TONIGHT. THIS SYSTEM WILL PRODUCE PERIODS
OF HEAVY RAIN AND SNOW LEVELS WILL GENERALLY REMAIN ABOVE 5000
FEET THROUGH THE EVENT. THIS MAY CAUSE SIGNIFICANT RISES ON AREA
RIVERS AND STREAMS BEGINNING TODAY AND LASTING INTO EARLY NEXT
WEEK.

ALONG THE EAST SLOPES OF THE WASHINGTON AND OREGON CASCADES...STORM
TOTAL RAINFALL AMOUNTS ARE FORECAST TO RANGE FROM 1 TO 2 INCHES BY
EARLY MONDAY MORNING. SNOW LEVELS ARE EXPECTED TO LOWER TO
BETWEEN 4000 TO 5000 FEET IN WASHINGTON AND 5500 TO 6500 FEET IN
OREGON TONIGHT.

FOR THE NORTHERN BLUE MOUNTAINS AND WALLOWA COUNTY... STORM TOTAL
RAINFALL AMOUNTS ARE FORECAST TO RANGE FROM 1 TO 2 INCHES WITH
SOME LOCALLY HIGHER AMOUNTS POSSIBLE. SNOW LEVELS WILL GENERALLY
REMAIN ABOVE 7000 FEET THROUGH TODAY BEFORE LOWERING SLIGHTLY TO
5500 TO 6000 FEET BY MONDAY MORNING.

FOR THE SOUTHERN BLUE MOUNTAINS...OCHOCO-JOHN DAY HIGHLANDS AND
THE JOHN DAY BASIN...STORM TOTAL RAINFALL AMOUNTS ARE FORECAST TO
RANGE FROM 0.75 TO 1.50 INCHES WITH THE HIGHEST AMOUNTS IN THE
MOUNTAINS. SNOW LEVELS WILL GENERALLY REMAIN ABOVE 7500 FEET
THROUGH TODAY BEFORE LOWERING TO 6000 FEET BY MONDAY MORNING.

SIGNIFICANT RISES ALONG AREA RIVERS AND STREAMS WILL LIKELY BEGIN
ON TODAY...HOWEVER AT THIS TIME NO FLOODING IS EXPECTED ON THE LARGE
RIVERS. IN ADDITION...SMALLER STREAMS AND CREEKS DRAINING THE
MOUNTAIN AREAS WILL BE RUNNING HIGH AND FAST...WITH SOME MINOR
FLOODING POSSIBLE.

THIS IS AN EVOLVING SITUATION...EXACT PRECIPITATION AMOUNTS AND
RIVER LEVELS MAY VARY. PEOPLE LIVING NEAR CREEKS, STREAMS AND RIVERS
SHOULD CONTINUE TO MONITOR THE FORECAST AND BE ALERT FOR THE
RISING WATER LEVELS THROUGH THE WEEKEND.

STAY UP TO DATE WITH THE LATEST FORECAST AT WEATHER.GOV/PENDLETON
OR MOBILE.WEATHER.GOV


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