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Weather Alert Detail

  • Special Weather Statement for Upper Hood River Valley County, Oregon
  • Special Weather Statement issued May 18 at 4:06AM PDT by NWS
  • Effective: Monday, May 18, 2015 at 4:06 a.m.
  • Expires: Monday, May 18, 2015 at 3 p.m.
  • ...SCATTERED THUNDERSTORMS WITH LOCALIZED HEAVY RAIN EXPECTED
    THIS AFTERNOON AND EVENING...
    WARMER TEMPERATURES WILL RESULT IN AN UNSTABLE AIR MASS THIS
    AFTERNOON...WITH SCATTERED THUNDERSTORMS EXPECTED TO DEVELOP
    ACROSS INLAND AREAS OF SOUTHWEST WASHINGTON AND NORTHWEST OREGON.
    THUNDERSTORMS SHOULD FIRST DEVELOP IN THE CASCADES DURING THE
    MIDDAY AND EARLY AFTERNOON HOURS...WITH ADDITIONAL SHOWERS AND
    THUNDERSTORMS DEVELOPING OVER THE COAST RANGE AND WILLAMETTE
    VALLEY LATER THIS AFTERNOON. SHOWERS AND THUNDERSTORMS MAY
    CONTINUE INTO THE EVENING HOURS BEFORE DISSIPATING WITH THE LOSS
    OF DAYTIME HEATING.
    ANY THUNDERSTORMS WHICH DEVELOP WILL HAVE ACCESS TO PLENTIFUL
    MOISTURE WRAPPING AROUND A BROAD LOW PRESSURE SYSTEM ENCOMPASSING
    MUCH OF THE WESTERN UNITED STATES. ADDITIONALLY SHOWERS AND
    THUNDERSTORMS SHOULD BE SLOW MOVING DUE TO THE LACK OF ANY
    SIGNIFICANT STEERING FLOW. GIVEN THESE FACTORS...THERE IS SOME
    CONCERN FOR HIGHLY LOCALIZED URBAN AND SMALL STREAM FLOODING IN
    AREAS AFFECTED BY THESE HEAVIER SHOWERS AND THUNDERSTORMS.
    THE BEST CHANCE OF THESE HEAVIER SHOWERS AND THUNDERSTORMS
    OCCURRING IN THE WILLAMETTE VALLEY WILL BE LATE THIS AFTERNOON...
    JUST IN TIME FOR THE LATE AFTERNOON COMMUTE. THE PORTLAND...SALEM
    AND EUGENE METRO AREAS MAY BE AFFECTED. HEAVY DOWNPOURS WOULD
    LIKELY CAUSE SOME MINOR TRAVEL ISSUES DUE TO PONDING ON ROADWAYS.
    VISIT WEATHER.GOV/PORTLAND OR YOUR FAVORITE SMARTPHONE WEATHER APP
    FOR UPDATED INFORMATION REGARDING IF...WHERE...AND WHEN THESE
    STORMS MAY AFFECT YOUR AREA.

  • Special Weather Statement for Upper Hood River Valley County, Oregon
  • Special Weather Statement issued March 13 at 5:04AM PDT by NWS
  • Effective: Friday, March 13, 2015 at 5:04 a.m.
  • Expires: Friday, March 13, 2015 at 10 p.m.
  • ...HEAVY RAIN EXPECTED ACROSS SOUTHWEST WASHINGTON AND NORTHWEST
    OREGON THIS WEEKEND...
    THE FIRST SIGNIFICANT RAIN EVENT IN SOME TIME IS EXPECTED TO
    DEVELOP OVER SOUTHWEST WASHINGTON AND NORTHWEST OREGON THIS
    UPCOMING WEEKEND. A SLOW MOVING FRONTAL BOUNDARY WITH A CONNECTION
    TO SUBTROPICAL MOISTURE WILL MOVE ONSHORE EARLY SATURDAY AND STALL
    OVER THE REGION THROUGH THE WEEKEND. THIS WILL BRING PERIODS OF
    RAINFALL...HEAVY AT TIMES. THE HIGHEST TOTALS WILL BE IN THE
    HIGHER TERRAIN OF THE COAST RANGE AND CASCADES...WHERE 3 TO 5
    INCHES ARE POSSIBLE. THE COASTAL REGIONS ARE EXPECTED TO SEE 1.5
    TO 3 INCHES...WITH 1 TO 2 INCHES EXPECTED OVER THE INTERIOR
    VALLEYS. IN ADDITION TO HEAVY RAINFALL...GUSTY WINDS ARE EXPECTED
    TO ACCOMPANY THE ARRIVAL OF THE FRONTAL BOUNDARY ON SATURDAY
    MORNING. THE STRONGEST WINDS ARE FORECASTED TO AFFECT THE SOUTH
    WASHINGTON AND NORTH OREGON COAST AND COAST RANGE...WHERE WIND
    GUSTS MAY REACH 40 TO 50 MPH.
    CONFIDENCE IS HIGH THAT HEAVY RAIN WILL AFFECT THE REGION THIS
    WEEKEND...BUT THERE IS SOME UNCERTAINTY AS TO EXACTLY WHERE THE
    FRONTAL BOUNDARY WILL SET UP. STAY TUNED OVER THE NEXT COUPLE OF
    DAYS FOR THE LATEST UPDATES AS THE FINER DETAILS BECOME CLEARER.
    VISIT OUR WEBSITE AT WWW.WEATHER.GOV/PORTLAND.