News

National Weather Service: Wind and flood advisory

The National Weather Service has released a wind advisory for Western Washington for the evening hours until 10 a.m. Saturday.

Along with the wind advisory the weather service released a flood advisory including an advisory for King County for flooding in small stream from melting snow and rain.

Wind Advisory

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
303 PM PST FRI JAN 20 2012

...A WIND ADVISORY IS IN EFFECT FOR MOST OF WESTERN WASHINGTON. A
STRONG FRONTAL SYSTEM WILL MOVE THROUGH THE REGION THIS
EVENING...WITH A STRONG TROUGH OF LOW PRESSURE REACHING WESTERN
WASHINGTON AROUND DAYBREAK SATURDAY...

WAZ503>509-511-512-210715-
/O.NEW.KSEW.WI.Y.0005.120121T0800Z-120121T1800Z/
WESTERN WHATCOM COUNTY-SOUTHWEST INTERIOR-
EAST PUGET SOUND LOWLANDS-WESTERN SKAGIT COUNTY-
EVERETT AND VICINITY-SEATTLE/BREMERTON AREA-TACOMA AREA-
HOOD CANAL AREA-LOWER CHEHALIS VALLEY AREA-
303 PM PST FRI JAN 20 2012

...WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM PST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM PST
SATURDAY.

* SOME AFFECTED LOCATIONS...EVERETT...SEATTLE...TACOMA...OLYMPIA.

* TIMING...SOUTHEAST WINDS WILL INCREASE AHEAD OF THE FRONT THIS
  EVENING. THE WIND WILL SHIFT TO SOUTHWESTERLY BEHIND THE FRONT.


* WIND...SOUTHERLY WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH WILL
  DEVELOP AFTER MIDNIGHT TONIGHT AND CONTINUE SATURDAY MORNING.

* IMPACTS...GUSTY WINDS MAY SNAP TREE BRANCHES AND CAUSE LOCAL
  POWER OUTAGES. AREAS WITH TREE AND LIMB DAMAGE CAUSED BY THE ICE
  STORM MAY SEE NUMEROUS ADDITIONAL FALLING LIMBS. BEWARE SNAGS
  WHICH ARE LIKELY TO FALL WHEN THE WIND INCREASES OVERNIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS OF 30 TO 39 MPH OR
GUSTS OF 45 TO 57 MPH ARE LIKELY.



 

 

 

Flood Advisory

FLOOD ADVISORY
NATIONAL WEATHER SERVICE SEATTLE WA
350 PM PST FRI JAN 20 2012

FLOOD BULLETIN NO. 1

WAC009-027-029-031-033-035-041-045-053-055-057-061-067-073-212330-
/O.NEW.KSEW.FA.Y.0001.120120T2350Z-120121T2330Z/
/00000.N.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
THURSTON-SAN JUAN-ISLAND-LEWIS-SNOHOMISH-WHATCOM-KITSAP-JEFFERSON-
MASON-GRAYS HARBOR-CLALLAM-SKAGIT-KING-PIERCE-
350 PM PST FRI JAN 20 2012

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY FOR RAIN AND MELTING SNOW
  IN...
  CLALLAM COUNTY...
  ISLAND COUNTY...
  JEFFERSON COUNTY...
  SAN JUAN COUNTY...
  SKAGIT COUNTY...
  WHATCOM COUNTY...
  KING COUNTY...
  KITSAP COUNTY...
  LEWIS COUNTY...
  MASON COUNTY...
  PIERCE COUNTY...
  SNOHOMISH COUNTY...
  THURSTON COUNTY...
  GRAYS HARBOR COUNTY...

* UNTIL 330 PM PST SATURDAY.

* AT 331 PM PST RAIN GAGE REPORTS AND NWS DOPPLER RADAR SHOWED
MODERATE RAIN OVER MOST OF THE ADVISORY AREA. AMOUNTS RANGE FROM
OVER AN INCH IN THE SOUTHWEST WHERE THE RAIN BEGAN SEVERAL HOURS AGO
TO A FEW HUNDREDTHS OR ZERO TO THE NORTH WHERE THE RAIN IS JUST
GETTING STARTED.

LIGHT TO MODERATE RAIN WITH OCCASIONALLY HEAVY RAIN WILL OVERSPREAD
THE ENTIRE AREA TONIGHT INTO SATURDAY. TOGETHER WITH MELTING SNOW
OVER THE LOWLANDS...EXPECT PONDING OF WATER ON ROADS AND IN
NEIGHBORHOODS. STORMWATER WILL POOL IN THE SNOW COVER BEFORE
EVENTUALLY MELTING AND RUNNING OFF. IN ADDITION...THE SNOW COVER AND
ICE COULD BE BLOCKING STORM DRAINS AND/OR CULVERTS WHICH COULD ALSO
RESULT IN EXCESSIVE PONDING OF WATER OR CAUSE SMALL STREAM TO
OVERFLOW THEIR BANKS.

RUNOFF FROM THE RAIN AND MELTING SNOW WILL INCREASE THE POSSIBILITY
OF LANDSLIDES AND DEBRIS FLOWS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

CLEARING NEARBY STORM DRAINS COULD HELP LESSEN THE PONDING OF WATER.

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.






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