Full Notification

SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PORTLAND OR 1155 AM PDT SAT OCT 8 2016

...HEAVY RAINFALL TOTALS EXPECTED OVER NORTHWEST OREGON AND SOUTHWEST WASHINGTON SUNDAY...

A SLOW MOVING COLD FRONT DROPPING SOUTHWARD THROUGH SOUTHWEST WASHINGTON AND NORTHWEST OREGON WILL LEAD TO A VERY WET SUNDAY.

RAIN IS EXPECTED TO BEGIN THIS EVENING OVER SOUTHWEST WASHINGTON AND MOVE SLOWLY SOUTHWARD INTO NORTHWEST OREGON...INCLUDING THE PORTLAND/VANCOUVER METRO AREA...BY SUNRISE SUNDAY.

LOCATIONS BETWEEN SOUTHWEST WASHINGTON AND NORTH OF A LINCOLN CITY TO MT HOOD LINE CAN EXPECT SEVERAL HOURS OF STEADY...MODERATE TO LOCALLY HEAVY RAINFALL ON SUNDAY. RAIN WILL END FROM THE NORTH SUNDAY EVENING...AND DIMINISH ACROSS THE ENTIRE AREA BY 11 PM.

RAINFALL TOTALS OF 1 TO 3 INCHES ARE EXPECTED...WITH LOCALIZED AMOUNTS PEAKING AS HIGH AS 5 INCHES IN THE HIGHER TERRAIN OF THE NORTH COAST AND NORTH CASCADE RANGES.

THIS LONG DURATION RAINFALL EVENT WILL LIKELY LEAD TO PONDING OF WATER IN ROADWAYS AND INTERSECTIONS...AND SOME URBAN AND SMALL STREAM FLOODING. THIS IS PARTICULARLY TRUE IN LOW-LYING AREAS SUCH AS UNDERPASSES AND LOCATIONS AFFECTED BY CLOGGED STORM DRAINS DUE TO FALLEN LEAVES.

THE NATIONAL WEATHER SERVICE WILL CONTINUE TO UPDATE THE FORECAST AS NEW DATA ARE RECEIVED. FOR THE LATEST FORECAST INFORMATION...PLEASE VISIT WWW.WEATHER.GOV/PORTLAND.