Flash Flood Watch
Issued by NWS Portland, OR

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671
WGUS66 KPQR 180405
FFAPQR

FLOOD WATCH
NATIONAL WEATHER SERVICE PORTLAND OR
805 PM PST TUE JAN 17 2017

...FLOODING POSSIBLE TONIGHT THROUGH THURSDAY FOR PORTIONS OF
NORTHWEST OREGON AND SOUTHWEST WASHINGTON...

.PERIODS OF HEAVY RAIN...COMBINED WITH MELTING SNOW...TONIGHT
THROUGH WEDNESDAY NIGHT WILL CAUSE RISES ON SEVERAL RIVERS AND
CREEKS IN NORTHWEST OREGON AND SOUTHWEST WASHINGTON. THE HEAVIEST
RAIN WILL FALL ALONG THE COAST AND COAST RANGE IN OREGON AND IN
THE WILLAPA HILLS AND CASCADE FOOTHILLS IN SOUTHWEST
WASHINGTON...WHERE RAINFALL TOTALS OF 3 TO 7 INCHES ARE EXPECTED.
ANY RIVER FLOODING THAT OCCURS IS EXPECTED TO HAVE ONLY MINOR
IMPACTS. IN ADDITION TO RIVER FLOODING...URBAN FLOODING AND
ROADWAY PONDING IS LIKELY...ESPECIALLY IN AREAS WHERE SNOW AND
ICE ARE BLOCKING STORM DRAINS IN THE NORTHERN WILLAMETTE VALLEY
AND SOUTHWEST WASHINGTON.

ORZ001-003-005-006-WAZ020>022-039-040-182015-
/O.CON.KPQR.FA.A.0001.000000T0000Z-170119T1200Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTH OREGON COAST-COAST RANGE OF NORTHWEST OREGON-LOWER COLUMBIA-
GREATER PORTLAND METRO AREA-WILLAPA HILLS-SOUTH WASHINGTON COAST-
I-5 CORRIDOR IN COWLITZ COUNTY-GREATER VANCOUVER AREA-
SOUTH WASHINGTON CASCADE FOOTHILLS-
INCLUDING THE CITIES OF...ASTORIA...CANNON BEACH...TILLAMOOK...
NETARTS...PACIFIC CITY...VERNONIA...JEWELL...SUNSET SUMMIT...
LEES CAMP...TRASK...ST. HELENS...CLATSKANIE...HILLSBORO...
PORTLAND...WILSONVILLE...OREGON CITY...GRESHAM...TROUTDALE...
WILLAPA...FRANCES...ELK MOUNTAIN...RYDERWOOD...RAYMOND...
LONG BEACH...OCEAN PARK...NASELLE...CATHLAMET...
CAPE DISAPPOINTMENT...LONGVIEW...KELSO...CASTLE ROCK...
VANCOUVER...BATTLE GROUND...RIDGEFIELD...WASHOUGAL...YACOLT...
AMBOY...TOUTLE...ARIEL...LAKE MERWIN...YALE LAKE...COUGAR
805 PM PST TUE JAN 17 2017

...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE WEDNESDAY NIGHT FOR
PORTIONS OF NORTHWEST OREGON AND SOUTHWEST WASHINGTON...

THE FLOOD WATCH CONTINUES FOR...

* PORTIONS OF NORTHWEST OREGON AND SOUTHWEST WASHINGTON...
  INCLUDING THE FOLLOWING AREAS...IN NORTHWEST OREGON...COAST
  RANGE OF NORTHWEST OREGON...GREATER PORTLAND METRO AREA...
  LOWER COLUMBIA AND NORTH OREGON COAST. IN SOUTHWEST
  WASHINGTON...GREATER VANCOUVER AREA...I-5 CORRIDOR IN COWLITZ
  COUNTY...SOUTH WASHINGTON CASCADE FOOTHILLS...SOUTH WASHINGTON
  COAST AND WILLAPA HILLS.

* THROUGH LATE WEDNESDAY NIGHT.

* THE ONSET OF HEAVY RAIN TONIGHT...COMBINED WITH SNOWMELT...WILL
  CAUSE MODERATE TO SHARP RISES ON RIVERS AND CREEKS DRAINING THE
  COAST RANGE...WILLAPA HILLS...AND SOUTH WASHINGTON CASCADES.
  HEAVY RAIN WILL ALSO CAUSE URBAN FLOODING IN THE PORTLAND AND
  VANCOUVER METRO AREA AS THE RAIN WILL HELP MELT THE EXISTING
  SNOW AND ICE. BLOCKED STORM DRAINS MAY ALSO CONTRIBUTE TO
  PONDING OF WATER ON STREETS.

* RAINFALL AMOUNTS THROUGH THURSDAY...1 TO 2 INCHES PORTLAND AND
  VANCOUVER METRO AREA...4 TO 7 INCHES NORTH COAST RANGE...3 TO 4
  INCHES IN THE WILLAPA HILLS...AND 4 TO 5 INCHES IN THE SOUTH
  WASHINGTON CASCADES FOOTHILLS.

* RIVERS OF CONCERN INCLUDE...BUT ARE NOT LIMITED TO...THE GRAYS
  RIVER IN WAHKIAKUM COUNTY...THE LOWER NEHALEM RIVER IN TILLAMOOK
  AND CLATSOP COUNTIES...THE WILSON RIVER IN TILLAMOOK COUNTY...
  THE TUALATIN RIVER IN WASHINGTON COUNTY...AND JOHNSON CREEK IN
  MULTNOMAH AND CLACKAMAS COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

LANDSLIDES AND DEBRIS FLOWS ARE POSSIBLE...ESPECIALLY IN AND NEAR
STEEP SLOPES.

&&

$$

ORZ002-004-007-008-010-012-182015-
/O.CON.KPQR.FA.A.0001.000000T0000Z-170119T1200Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CENTRAL OREGON COAST-CENTRAL COAST RANGE OF WESTERN OREGON-
CENTRAL WILLAMETTE VALLEY-SOUTH WILLAMETTE VALLEY-
NORTHERN OREGON CASCADE FOOTHILLS-
CASCADE FOOTHILLS IN LANE COUNTY-
INCLUDING THE CITIES OF...LINCOLN CITY...NEWPORT...
CAPE FOULWEATHER...YACHATS...FLORENCE...GRANDE RONDE...
BURNT WOODS...TIDEWATER...SWISSHOME...VENETA...SALEM...
MCMINNVILLE...WOODBURN...STAYTON...DALLAS...EUGENE...
SPRINGFIELD...CORVALLIS...ALBANY...LEBANON...SANDY...ESTACADA...
SILVER FALLS STATE PARK...SWEET HOME...VIDA...JASPER...LOWELL...
COTTAGE GROVE
805 PM PST TUE JAN 17 2017

...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE WEDNESDAY NIGHT FOR
PORTIONS OF NORTHWEST OREGON...

THE FLOOD WATCH CONTINUES FOR...

* A PORTION OF NORTHWEST OREGON...INCLUDING THE FOLLOWING
  AREAS...CASCADE FOOTHILLS IN LANE COUNTY...COAST RANGE OF WEST
  CENTRAL OREGON...COAST OF WEST CENTRAL OREGON...CENTRAL
  WILLAMETTE VALLEY...NORTHERN OREGON CASCADE FOOTHILLS AND SOUTH
  WILLAMETTE VALLEY.

* THROUGH LATE WEDNESDAY NIGHT.

* THE ONSET OF HEAVY RAIN TONIGHT...COMBINED WITH SOME SNOWMELT IN
  THE COAST RANGE AND CASCADES FOOTHILLS...WILL CAUSE RISES ON
  RIVERS AND CREEKS DRAINING THE COAST RANGE...AND NORTH OREGON
  CASCADE FOOTHILLS.

* RAINFALL AMOUNTS THROUGH THURSDAY...1 TO 2 INCHES IN THE CENTRAL
  AND SOUTHERN WILLAMETTE VALLEY...4 TO 7 INCHES IN THE COAST AND
  COAST RANGE OF WEST CENTRAL OREGON...AND 2 TO 4 INCHES IN THE
  CASCADE FOOTHILLS OF NORTH OREGON AND LANE COUNTY.

* RIVERS OF CONCERN INCLUDE...BUT ARE NOT LIMITED TO...THE MARYS
  RIVER IN BENTON COUNTY...AND THE LUCKIAMUTE RIVER IN POLK AND
  BENTON COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

LANDSLIDES AND DEBRIS FLOWS ARE POSSIBLE...ESPECIALLY IN AND NEAR
STEEP SLOPES.

&&

$$



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