Alert archive / Washington / Wind Advisories in 2012

Wind Advisory 35, NWS Seattle, WA

December 3, 2012San Juan County, Washington

NWS Seattle, WA issued this wind advisory at Dec 3, 2012, 3:26 PM PST for San Juan County, Washington. It took effect at Dec 3, 2012, 6:00 PM PST. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Dec 3, 2012, 3:26 PM PST (23:26 UTC)
In effect from
Dec 3, 2012, 6:00 PM PST
Expired
Dec 4, 2012, 10:00 AM PST
In force
16 hr
Issued by
NWS Seattle, WA

County San Juan County, WA

The radar

The Seattle radar (KATX), 54 km from the middle of the area, began a volume at 23:27 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Quillayute State, WA (KUIL), launched 12:00Z, 11.4 hours before the alert went out and 127 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Quillayute State, WA at 12:00Z on 2012-12-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Quillayute State, WA at 12:00Z on 2012-12-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
557 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

504 
WWUS76 KSEW 032326
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
326 PM PST MON DEC 3 2012

...WINDY TONIGHT AND TUESDAY MORNING COAST AND NORTH INTERIOR...

WAZ001-503-506-510-516-517-040630-
/O.NEW.KSEW.WI.Y.0035.121204T0200Z-121204T2000Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-NORTH COAST-CENTRAL COAST-
326 PM PST MON DEC 3 2012

...WIND ADVISORY IN EFFECT UNTIL NOON PST TUESDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL NOON PST TUESDAY. 

* SOME AFFECTED LOCATIONS...OCEAN SHORES...WESTPORT...LA PUSH...
  BELLINGHAM...OAK HARBOR...FRIDAY HARBOR...MOUNT VERNON.

* TIMING...WINDS WILL INCREASE THIS EVENING AND PEAK BETWEEN 10 PM
  AND 6 AM.

* WIND...SUSTAINED SOUTH WINDS OF 20 TO 35 MPH WITH GUSTS TO 50
  MPH ARE LIKELY ON THE COAST AND OVER THE NORTH INTERIOR.

* IMPACTS...WINDS OF THESE SPEEDS TYPICALLY CAUSE BRANCHES AND A
  FEW TREES TO FALL. ISOLATED POWER OUTAGES ARE POSSIBLE.

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.

&&

$$
2 follow-up statements
202 
WWUS76 KSEW 040607
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
1007 PM PST MON DEC 3 2012

WAZ001-503-506-510-516-517-041330-
/O.CON.KSEW.WI.Y.0035.000000T0000Z-121204T2000Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-NORTH COAST-CENTRAL COAST-
1007 PM PST MON DEC 3 2012

...WIND ADVISORY REMAINS IN EFFECT FOR THE COAST AND NORTH INTERIOR
UNTIL NOON PST TUESDAY...

* SOME AFFECTED LOCATIONS...WESTPORT...HOQUIAM...OAK HARBOR...
  FRIDAY HARBOR...BELLINGHAM...AND CHERRY POINT.

* TIMING...WIND SPEEDS WILL INCREASE LATE TONIGHT AND THEN PEAK
  BETWEEN 2 AM AND 8 AM PST.

* WIND...RISING FROM THE SOUTH AT 20 TO 35 MPH WITH GUSTS TO 50
  MPH. THE STRONGEST WINDS WILL PROBABLY BE OVER THE CENTRAL
  COAST...SAN JUANS...AND WHIDBEY ISLAND.

* IMPACTS...WINDS THIS STRONG CAN SNAP SMALL TREE BRANCHES...
  TOPPLE SMALL OR SHALLOW ROOTED TREES...AND CAUSE LOCAL POWER
  OUTAGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOTORISTS...ESPECIALLY THOSE WITH HIGH PROFILE VEHICLES...SHOULD
BE ALERT FOR SUDDEN...STRONG CROSS WINDS ON EAST/WEST HIGHWAYS
SUCH AS STATE ROUTE 12.

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

&&

$$

WWW.WEATHER.GOV/SEATTLE
115 
WWUS76 KSEW 041150
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
350 AM PST TUE DEC 4 2012

WAZ001-503-506-510-516-517-041800-
/O.EXT.KSEW.WI.Y.0035.000000T0000Z-121204T1800Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-NORTH COAST-CENTRAL COAST-
350 AM PST TUE DEC 4 2012

...WIND ADVISORY NOW IN EFFECT UNTIL 10 AM PST THIS MORNING...

* SOME AFFECTED LOCATIONS...WESTPORT...HOQUIAM...PORT TOWNSEND...
  OAK HARBOR...FRIDAY HARBOR...AND BELLINGHAM. 

* TIMING...THE STRONGEST WINDS ON THE COAST WILL BE THROUGH 8 AM
  THEN EASE. FOR THE NORTH INTERIOR...THE STRONGEST WINDS WILL BE
  FROM ABOUT 5 AM TO 8 AM BEFORE EASING LATER THIS MORNING.

* WIND...SOUTH 20 TO 35 MPH WITH GUSTS TO 50 MPH. 

* IMPACTS...WINDS THIS STRONG CAN SNAP SMALL TREE BRANCHES...
  TOPPLE SMALL OR SHALLOW ROOTED TREES...AND PRODUCE LOCAL POWER
  OUTAGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOTORISTS...ESPECIALLY THOSE WITH HIGH PROFILE VEHICLES...SHOULD
BE ALERT FOR SUDDEN...STRONG CROSS WINDS ON EAST/WEST ROADWAYS AND
BRIDGES.

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

&&

$$

WEATHER.GOV/SEATTLE

The office that day

Everything else NWS Seattle, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 3, 3:06 AM PSTGale WarningSEW31 hr
Dec 3, 7:46 AM PSTCoastal Flood AdvisorySEW2 hr
Dec 3, 8:31 AM PSTFlood WatchSEWGrays Harbor, Lewis, Thurston55 hr
Dec 3, 11:21 AM PSTRiver Flood WarningSEWThurston64 hr
Dec 3, 3:32 PM PSTWinter Storm WatchSEW12 hr
Dec 3, 3:49 PM PSTRiver Flood WarningSEWGrays Harbor69 hr

Nearby

Wind Advisories in Washington, 2012Every wind advisory in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.