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Weather Alert Detail

  • Special Weather Statement for South Washington Cascades County, Washington
  • Special Weather Statement issued March 28 at 4:40AM PDT by NWS
  • Effective: Friday, March 28, 2014 at 4:40 a.m.
  • Expires: Friday, March 28, 2014 at 5 p.m.
  • ...HEAVY RAINS UNDERWAY BRINGING RAPID RIVER RISES AND INCREASED
    LANDSLIDE POTENTIAL...
    LOW PRESSURE CENTERED OFF VANCOUVER ISLAND WILL FUNNEL MODERATE
    AMOUNTS OF SUBTROPICAL MOISTURE ACROSS THE AREA TODAY. EXPECT
    PERIODS OF MODERATE TO HEAVY RAIN WITH SNOW LEVELS RISING ABOVE THE
    PASSES. BEST ESTIMATES OF TOTAL RAINFALL THROUGH FRIDAY EVENING ARE
    FOR 2 TO 5 INCHES ALONG THE COAST...COAST RANGE...AND
    CASCADES...WITH 1 TO 3 INCHES ELSEWHERE. HEAVIEST AMOUNTS WILL ALIGN
    ALONG A LINE CENTERED OVER THE CENTRAL COAST/COAST RANGE EXTENDING
    NORTHEAST TO THE NORTHERN OREGON CASCADES AND COLUMBIA GORGE.
    PLAN ON MODERATE TO SHARP RISES FOR SMALL STREAMS AND RIVERS TODAY
    THROUGH SATURDAY. FLOODING IS NOT EXPECTED AT THIS TIME. SOME MINOR
    LANDSLIDES ARE ALREADY BEING REPORTED AROUND THE REGION UNDER
    SATURATED SOIL CONDITIONS. ADDITIONAL LANDSLIDES ARE NOT OUT OF THE
    QUESTION...ESPECIALLY ALONG THE AXIS OF HEAVIEST RAINS MENTIONED
    ABOVE.
    ADDITIONALLY...SOUTH WINDS WILL PEAK THIS MORNING. EXPECT SOUTH
    WINDS OF 15 TO 30 MPH ON THE COAST...WITH GUSTS 40 TO 50 MPH.
    STRONGEST WINDS WILL BE ON THE EXPOSED HEADLANDS AND OPEN BEACHES.
    BREEZY CONDITIONS CAN BE EXPECTED FARTHER INLAND TODAY. THUNDERSTORM
    POTENTIAL TODAY AND SATURDAY COULD ALSO RESULT IN GUSTY OUTFLOW WITH
    SPEEDS LIKELY REACHING 30 TO 40 MPH 50 MPH OUTFLOW GUSTS ARE NOT OUT
    OF THE QUESTION ON SATURDAY. THE SATURATED SOILS MAY COMBINE WITH
    LEAFING TREES AND COULD RESULT IN TREE DAMAGE OR TOPPLING...EVEN
    WITH WIND GUSTS 30 TO 35 MPH.
    BEHIND THE COLD FRONT LATER THIS AFTERNOON...HEAVIER RAIN WILL SHIFT
    FURTHER SOUTH AND SNOW LEVELS WILL GRADUALLY LOWER. SIGNIFICANT SNOW
    DEVELOPS AS THE COLDER AIR ALOFT ARRIVES FRIDAY NIGHT AND SATURDAY.
    SEVERAL INCHES ARE POSSIBLE AT MAJOR PASS LEVELS IN THE CASCADES
    BEGINNING TONIGHT THROUGH THE WEEKEND WITH LARGER AMOUNTS WELL ABOVE
    THE PASSES.
    SPECIFIC DETAILS ARE SOMEWHAT CERTAIN BUT OBSERVED SPECIFIC
    CONDITIONS WILL LIKELY CHANGE. SO PLEASE...STAY TUNED INTO TO YOUR
    FAVORITE WEATHER SOURCE FOR THE LATEST FORECASTS AND STATEMENTS.
    THIS WILL NOT BE A GREAT TIME FOR OUTDOOR ACTIVITIES.

  • Special Weather Statement for South Washington Cascades County, Washington
  • Special Weather Statement issued March 16 at 3:56PM PDT by NWS
  • Effective: Sunday, March 16, 2014 at 3:56 p.m.
  • Expires: Monday, March 17, 2014 at 5 a.m.
  • ...HEAVY RAINFALL HAS INCREASED THE RISK OF LANDSLIDES IN WESTERN
    WASHINGTON...
    HEAVY RAINFALL OVER THE PAST 24 HOURS HAS INCREASED SOIL MOISTURE
    TO HIGH LEVELS ACROSS WESTERN WASHINGTON. RAINFALL AMOUNTS ARE
    UP TO 1 INCH IN PORTIONS OF THE INTERIOR WITH 1 TO 3 INCHES ALONG
    THE COAST. THE HEAVY RAIN THAT HAS FALLEN WILL PUT EXTRA PRESSURE
    ON SOIL INSTABILITY...LEADING TO AN INCREASED RISK OF LANDSLIDES.
    CUMULATIVE RAINFALL OVER THE LAST WEEK HAS SOAKED SOILS TO THE
    POINT WHERE THE WASHINGTON LANDSLIDE RISK LEVEL IS AT ELEVATED
    LEVELS. LANDSLIDES ARE POSSIBLE OVER THE NEXT COUPLE OF DAYS.
    WITH AN ELEVATED LANDSLIDE RISK...RAINFALL INDUCED LANDSLIDES ARE
    POSSIBLE DURING BURSTS OF INTENSE RAINFALL OR WHEN THERE IS HEAVY
    RAINFALL OVER A PERIOD OF A DAY OR TWO AS NOTED IN THE FORECAST
    ELEVATED RISK LEVEL. A GRADUALLY DIMINISHING RISK OF LANDSLIDES
    WILL CONTINUE FOR SEVERAL DAYS AFTER THE RAIN ENDS. AREAS MOST
    SUSCEPTIBLE TO LANDSLIDES UNDER THESE CONDITIONS ARE STEEP COASTAL
    BLUFFS AND OTHER STEEP HILLSIDES.
    FOR MORE INFORMATION ABOUT CURRENT CONDITIONS...VISIT
    WWW.WEATHER.GOV/SEATTLE...SELECT HYDROLOGY...AND THEN SCROLL DOWN
    FOR THE LINKS TO THE LANDSLIDE INFORMATION PAGES.
    TO REPORT LANDSLIDES TO THE STATE FOR TABULATION...GO TO THE
    WASHINGTON STATE LANDSLIDE RISK WEB PAGE AND THE LINK FOR
    REPORTING.