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2 products issued by NWS for: Portland OR
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Winter Storm Watch

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PORTLAND OR
504 AM PST MON JAN 16 2017

...MAJOR ICE STORM APPEARING LIKELY TUESDAY AND WEDNESDAY FOR THE
HOOD RIVER AND WIND RIVER VALLEYS...THE COLUMBIA RIVER GORGE...AS
WELL AS MANY VALLEYS WITHIN THE GIFFORD PINCHOT NATIONAL FOREST...

...SIGNIFICANT ICING ALSO POSSIBLE TUESDAY FOR THE GREATER
PORTLAND AND VANCOUVER METRO AREA...NEARBY VALLEYS IN THE COAST
RANGE AND CASCADES...AND THE CENTRAL WILLAMETTE VALLEY...

.YET ANOTHER ICE STORM IS APPEARING MORE LIKELY FOR THE INLAND
VALLEYS OF SOUTHWEST WASHINGTON AND EXTREME NORTHWEST OREGON
TUESDAY...LIKELY LASTING INTO WEDNESDAY IN AND NEAR THE COLUMBIA
RIVER GORGE. TEMPERATURES WILL BE SLOW TO RECOVER FROM SEVERAL
DAYS OF SUBFREEZING WEATHER...ESPECIALLY WHERE THERE IS SNOW LEFT
ON THE GROUND FROM LAST WEEKS PORTLAND AREA SNOWSTORM.

TEMPERATURES ARE EXPECTED TO REMAIN NEAR OR BELOW FREEZING UNDER
VALLEY INVERSIONS TODAY...THEN REMAIN STEADY NEAR OR BELOW
FREEZING TONIGHT AND TUESDAY MORNING. MEANWHILE...A VERY MOIST
PACIFIC FRONTAL SYSTEM WILL SPREAD RAIN ACROSS THE REGION TUESDAY
MORNING...INCREASING TUESDAY AFTERNOON AND EVENING. THERE WILL
LIKELY BE SEVERAL HOURS OF RAIN BEFORE WARM AIR ALOFT CAN WORK ITS
WAY DOWN TO THE VALLEY FLOORS...LEADING TO THE POTENTIAL OF
SEVERAL HOURS OF FREEZING RAIN. AREAS IN AND NEAR THE COLUMBIA
GORGE WILL BE HARDEST HIT...AS THEY WILL BE THE LAST TO CLIMB
ABOVE FREEZING. IT IS VERY POSSIBLE THAT LOCALLY OVER AN INCH OF
ICE WILL ACCUMULATE IN THE COLUMBIA GORGE...HOOD RIVER...AND WIND
RIVER VALLEYS BY THE TIME TEMPERATURES CRAWL ABOVE FREEZING
WEDNESDAY.


ORZ006-WAZ039-170000-
/O.NEW.KPQR.WS.A.0002.170117T1200Z-170118T0200Z/
GREATER PORTLAND METRO AREA-GREATER VANCOUVER AREA-
INCLUDING THE CITIES OF...HILLSBORO...PORTLAND...OREGON CITY...
GRESHAM...VANCOUVER...BATTLE GROUND...WASHOUGAL
504 AM PST MON JAN 16 2017

...WINTER STORM WATCH IN EFFECT FROM EARLY TUESDAY MORNING THROUGH
TUESDAY AFTERNOON FOR THE GREATER PORTLAND AND VANCOUVER METRO
AREA...

THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A WINTER
STORM WATCH FOR SIGNIFICANT ICING...WHICH IS IN EFFECT FROM EARLY
TUESDAY MORNING THROUGH TUESDAY AFTERNOON.

* TIMING...FREEZING RAIN IS EXPECTED TO DEVELOP EARLY TUESDAY
  MORNING...INCREASING THROUGHOUT THE DAY. TEMPERATURES ARE
  EXPECTED TO SLOWLY CLIMB ABOVE FREEZING TUESDAY...WITH AREAS
  EAST OF INTERSTATE 205 LIKELY BEING THE LAST TO CHANGE TO PLAIN
  RAIN LATE IN THE AFTERNOON OR DURING THE EVENING.

* ICE ACCUMULATION...0.20 TO 0.40 INCH...EXCEPT 0.50 TO 0.75 INCH
  TROUTDALE AND GRESHAM EASTWARD.

* IMPACTS...MANY ROADS REMAIN SNOW AND ICE COVERED FROM LAST WEEKS
  SNOWSTORM. ADDITIONALLY...SEVERAL DAYS OF VERY COLD TEMPERATURES
  WILL MAKE GROUND SURFACES LIKE ROADS AND SIDEWALKS VERY
  RECEPTIVE TO ICE ACCUMULATION. IT MAY TAKE A COUPLE HOURS OF
  TEMPERATURES ABOVE FREEZING TO COMPLETELY END THE FREEZING RAIN
  THREAT AT ANY GIVEN LOCATION. ROADS MAY AGAIN BECOME DIFFICULT
  FOR TRAVEL ACROSS THE GREATER PORTLAND AND VANCOUVER METRO AREA
  TUESDAY. ICE ACCUMULATION ON TREES AND POWER LINES MAY RESULT IN
  DOWNED BRANCHES AND LINES...WHICH WOULD BRING THE THREAT OF
  POWER OUTAGES TUESDAY INTO TUESDAY NIGHT.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

THERE IS A POTENTIAL FOR SIGNIFICANT ICE ACCUMULATIONS. FUTURE
DRIVING...BICYCLING...AND WALKING CONDITIONS MAY BECOME
HAZARDOUS...SO IT IS IMPORTANT TO MONITOR THE LATEST FORECASTS.
ALSO...BE PREPARED FOR POTENTIAL POWER OUTAGES AS ICE MAY BRING
BRANCHES AND POWER LINES DOWN TUESDAY.

&&

$$



Flood Watch

FLOOD WATCH...CORRECTED
NATIONAL WEATHER SERVICE PORTLAND OR
322 PM PST SUN JAN 15 2017

...FLOODING POSSIBLE TUESDAY THROUGH THURSDAY FOR MOST OF
NORTHWEST OREGON AND SOUTHWEST WASHINGTON...

.PERIODS OF HEAVY RAIN COMBINED WITH SNOW MELT TUESDAY AFTERNOON
THROUGH WEDNESDAY NIGHT WILL CAUSE SHARP RISES ON SEVERAL RIVERS
AND CREEKS IN NORTHWEST OREGON AND SOUTHWEST WASHINGTON...WITH
FLOODING POSSIBLE TUESDAY NIGHT THROUGH THURSDAY. THE HEAVIEST
RAIN WILL FALL ALONG THE COAST AND COAST RANGE IN OREGON AND IN
THE WILLAPA HILLS AND CASCADES IN SOUTHWEST WASHINGTON...WHERE
RAINFALL TOTALS OF 4 TO 8 INCHES ARE EXPECTED. IN ADDITION TO
RIVER FLOODING...SOME URBAN FLOODING IS POSSIBLE...ESPECIALLY IN
AREAS WHERE SNOW AND ICE ARE BLOCKING STORM DRAINS.

ORZ001-003-005-006-014>016-WAZ019>022-039-040-045-046-170000-
/O.NEW.KPQR.FA.A.0001.170117T1800Z-170119T1200Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTH OREGON COAST-COAST RANGE OF NORTHWEST OREGON-LOWER COLUMBIA-
GREATER PORTLAND METRO AREA-UPPER HOOD RIVER VALLEY-
WESTERN COLUMBIA RIVER GORGE-CENTRAL COLUMBIA RIVER GORGE-
SOUTH WASHINGTON CASCADES-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...
PARKDALE...ODELL...CORBETT...ROOSTER ROCK...MULTNOMAH FALLS...
CASCADE LOCKS...HOOD RIVER...COLDWATER RIDGE VISITORS CENTER...
MOUNT ST. HELENS...WIND RIVER VALLEY...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...NORTH BONNEVILLE...STEVENSON...CARSON...
UNDERWOOD
322 PM PST SUN JAN 15 2017

...FLOOD WATCH IN EFFECT FOR THE NORTH OREGON COAST AND COAST
RANGE...PORTLAND/VANCOUVER METRO AREA...COLUMBIA RIVER GORGE...AND
SOUTHWEST WASHINGTON FROM THE WILLAPA HILLS TO THE SOUTH
WASHINGTON CASCADES...FROM TUESDAY MORNING THROUGH LATE WEDNESDAY
NIGHT...

THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A

* FLOOD WATCH FOR PORTIONS OF NORTHWEST OREGON AND SOUTHWEST
  WASHINGTON...INCLUDING THE FOLLOWING AREAS...IN NORTHWEST
  OREGON...CENTRAL COLUMBIA RIVER GORGE...COAST RANGE OF
  NORTHWEST OREGON...GREATER PORTLAND METRO AREA...LOWER
  COLUMBIA...NORTH OREGON COAST...UPPER HOOD RIVER VALLEY AND
  WESTERN COLUMBIA RIVER GORGE. IN SOUTHWEST WASHINGTON...
  CENTRAL COLUMBIA RIVER GORGE...GREATER VANCOUVER AREA...I-5
  CORRIDOR IN COWLITZ COUNTY...SOUTH WASHINGTON CASCADE
  FOOTHILLS...SOUTH WASHINGTON CASCADES...SOUTH WASHINGTON
  COAST...WESTERN COLUMBIA RIVER GORGE AND WILLAPA HILLS.

* FROM TUESDAY MORNING THROUGH LATE WEDNESDAY NIGHT

* FREEZING LEVELS WILL RISE TO OVER 8000 FEET MONDAY NIGHT LEADING
  TO RAPID SNOW MELT. IN ADDITION...HEAVY RAIN BEGINNING TUESDAY
  WILL CAUSE SHARP RISES ON RIVERS AND CREEKS DRAINING THE COAST
  RANGE...SOUTH WASHINGTON CASCADES...AND WILLAPA HILLS.

* RAINFALL AMOUNTS THROUGH THURSDAY...
    *PORTLAND/VANCOUVER METRO AREA......1.5 TO 3 INCHES
    *NORTH COAST RANGE/WILLAPA HILLS....4 TO 8 INCHES
    *SOUTH WASHINGTON CASCADES..........4 TO 8 INCHES

* IMPACTS...
    *STREET FLOODING IS POSSIBLE IN URBAN AREAS WHERE ICE AND SNOW
     MAY BLOCK STORM DRAINS.

* RIVERS OF CONCERN INCLUDE THE GRAYS IN WAHKIAKUM COUNTY...THE
  LOWER NEHALEM AND WILSON IN TILLAMOOK COUNTY...THE UPPER
  TUALATIN IN WASHINGTON COUNTY...THE MARYS IN BENTON COUNTY...AND
  JOHNSON CREEK IN CLACKAMAS COUNTY.

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 DURING THIS FLOOD EVENT.
PEOPLE...STRUCTURES AND ROADS LOCATED BELOW STEEP SLOPES...IN
CANYONS AND NEAR THE MOUTHS OF CANYONS MAY BE AT SERIOUS RISK
FROM RAPIDLY MOVING LANDSLIDES.

&&

$$



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