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Weather Alert Detail

  • Special Weather Statement for South Willamette Valley County, Oregon
  • Special Weather Statement issued April 01 at 4:33AM PDT by NWS
  • Effective: Wednesday, April 1, 2015 at 4:33 a.m.
  • Expires: Wednesday, April 1, 2015 at 5 p.m.
  • ...ISOLATED THUNDERSTORMS...SMALL HAIL...AND LOCALLY HEAVY RAIN
    POSSIBLE AGAIN TODAY...
    AN UNSETTLED WEATHER PATTERN WILL ONCE AGAIN BRING THE POTENTIAL
    FOR A FEW HEAVY RAIN AND SMALL HAIL SHOWERS TO DEVELOP ACROSS
    SOUTHWEST WASHINGTON AND NORTHWEST OREGON TODAY. THE COOL AND
    UNSTABLE ENVIRONMENT MAY ALSO ALLOW SOME ISOLATED THUNDERSTORMS
    TO DEVELOP THIS AFTERNOON AND EVENING.
    HEAVIER SHOWERS YESTERDAY PRODUCED LOCALIZED ISSUES WITH PONDING
    OF WATER ON ROADWAYS...AS WELL AS SOME LOCALIZED ACCUMULATION OF
    SMALL HAIL. SIMILAR ISSUES WILL PROBABLY OCCUR TODAY...BUT AGAIN
    THEY WILL BE FAIRLY LOCALIZED TO STRONGER SHOWERS.
    WHILE MOST LOCATIONS WILL JUST EXPERIENCE OCCASIONAL SHOWERS...
    DRIVERS SHOULD BE AWARE OF THE POTENTIAL FOR RAPIDLY CHANGING
    CONDITIONS ESPECIALLY THIS AFTERNOON. PONDING OF WATER IN HEAVIER
    SHOWERS MAY CAUSE FAST MOVING VEHICLES TO HYDROPLANE. SMALL HAIL
    MAY BRIEFLY ACCUMULATE ON ROADWAYS...MAKING ROADWAYS LOCALLY
    SLICK.
    STAY INFORMED OF THE LATEST WEATHER INFORMATION BY VISITING OUR
    WEB SITE AT WWW.WEATHER.GOV/PORTLAND...OR BY CHECKING YOUR
    FAVORITE MEDIA SOURCE OR WEATHER SMART PHONE APPLICATION.

  • Special Weather Statement for South Willamette 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.