Alert archive / Washington / Wind Advisories in 2007

Wind Advisory 13, NWS Seattle, WA

November 26, 2007San Juan County, Washington

NWS Seattle, WA issued this wind advisory at Nov 26, 2007, 2:49 PM PST for San Juan County, Washington. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Nov 26, 2007, 2:49 PM PST (22:49 UTC)
Expired: Nov 26, 2007, 10:07 PM PST
In force: 7 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 22:51 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, 10.8 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1782 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 210 m²/s²
0-3 km storm-relative helicity: 386 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.

000 
WWUS76 KSEW 262249
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
249 PM PST MON NOV 26 2007

WAZ001-503-506-507-510-514-515-270900-
/O.NEW.KSEW.WI.Y.0013.071126T2249Z-071127T0900Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
EVERETT AND VICINITY-ADMIRALTY INLET AREA-
EASTERN STRAIT OF JUAN DE FUCA-WESTERN STRAIT OF JUAN DE FUCA-
249 PM PST MON NOV 26 2007

...WIND ADVISORY IN EFFECT UNTIL 1 AM PST TUESDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 1 AM PST TUESDAY. 

A FAIRLY VIGOROUS COLD FRONT WILL MOVE ACROSS THE REGION THIS
EVENING. A STRONG SURGE OF WIND IS EXPECTED TO DEVELOP IN THE
STRAIT OF JUAN DE FUCA...SPREADING GUSTY WEST WINDS DOWN THE
STRAIT AND INTO THE NORTHWEST INTERIOR...SAN JUANS...ISLAND
COUNTY AND CLIPPING THE ADMIRALTY INLET AND EVERETT AREAS.

SUSTAINED WIND SPEEDS OF 20 TO 30 MPH ARE EXPECTED TO DEVELOP IN
THE WAKE OF THE FRONT WITH GUSTS OVER 45 MPH. THE WINDS WILL BEGIN
TO SUBSIDE SHORTLY AFTER MIDNIGHT TONIGHT. 

A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS OF 30 TO 39 MPH OR
GUSTS OF 45 TO 57 MPH ARE LIKELY. WINDS THIS STRONG CAN SNAP
SMALL TREE BRANCHES...TOPPLE SMALL OR SHALLOW-ROOTED TREES...AND
CAUSE LOCAL POWER OUTAGES. MOTORISTS...ESPECIALLY THOSE WITH HIGH
PROFILE VEHICLES...SHOULD ALSO BE ALERT FOR SUDDEN...STRONG CROSS
WINDS.

$$

CERNIGLIA
WWW.WEATHER.GOV/SEATTLE

1 follow-up statement

000 
WWUS76 KSEW 270607
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
1007 PM PST MON NOV 26 2007

...THE WIND ADVISORY FOR THE STRAIT OF JUAN DE FUCA AND NORTHERN
INTERIOR HAS BEEN CANCELLED...

.WEST WINDS IN THE STRAIT OF JUAN DE FUCA AND NORTHERN INTERIOR
TONIGHT WILL NOT BE AS HIGH AS PREVIOUSLY FORECAST. 

WAZ001-503-506-507-510-514-515-270715-
/O.CAN.KSEW.WI.Y.0013.000000T0000Z-071127T0900Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
EVERETT AND VICINITY-ADMIRALTY INLET AREA-
EASTERN STRAIT OF JUAN DE FUCA-WESTERN STRAIT OF JUAN DE FUCA-
1007 PM PST MON NOV 26 2007

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS CANCELLED THE WIND
ADVISORY. 

EXPECT WEST WINDS NEAR THE STRAIT OF JUAN DE FUCA TO RISE TO
AROUND 20 TO 30 MPH BY MIDNIGHT. WINDS ACROSS MOST OF THE NORTH
INTERIOR WILL BE MERELY BREEZY TONIGHT...15 TO 25 MPH.

$$

The office that day

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

Issued	Product	Office	Lasted
Nov 25, 9:26 PM PST	Winter Storm Watch	SEW	7 hr
Nov 26, 4:40 AM PST	Heavy Snow Warning	SEW	25 hr
Nov 26, 4:40 AM PST	Snow Advisory	SEW	19 hr

Nearby

Wind Advisories in Washington, 2007 Every wind advisory in 2007

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.