Alert archive / Washington / Wind Advisories in 2012

Wind Advisory 25, NWS Seattle, WA

April 2, 2012San Juan County, Washington

NWS Seattle, WA issued this wind advisory at Apr 2, 2012, 4:03 AM PDT for San Juan County, Washington. It took effect at Apr 2, 2012, 9:42 AM PDT. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Apr 2, 2012, 4:03 AM PDT (11:03 UTC)
In effect from
Apr 2, 2012, 9:42 AM PDT
Expired
Apr 2, 2012, 8:33 PM PDT
In force
11 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 11:02 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 00:00Z, 11.1 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 00:00Z on 2012-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 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 00:00Z on 2012-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.1939587897117136Sfc1 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
14 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
846 m above ground
0-6 km bulk shear
80 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
55 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.

951 
WWUS76 KSEW 021103
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
403 AM PDT MON APR 2 2012

...WINDY CONDITIONS ALONG THE COAST AND NORTH INTERIOR TODAY...

.SOUTH TO SOUTHEAST WINDS WILL INCREASE ALONG THE COAST AND NORTH
INTERIOR TODAY AS A DEEP SURFACE LOW FORMS OVER THE OFFSHORE
WATERS AND A COLD FRONT APPROACHES. WINDS WILL EASE LATE THIS
EVENING AS THE FRONT MOVES INLAND. 

WAZ516-517-030000-
/O.NEW.KSEW.WI.Y.0025.120402T2100Z-120403T0600Z/
NORTH COAST-CENTRAL COAST-
403 AM PDT MON APR 2 2012

...WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM PDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM
PDT THIS EVENING. 

* SOME AFFECTED LOCATIONS...OCEAN SHORES...PACIFIC BEACH...HOQUIAM...FORKS
  AND NEAH BAY.

* TIMING...WINDS WILL INCREASE THIS AFTERNOON...PEAKING THIS
  EVENING. 

* WIND...SUSTAINED SOUTH TO SOUTHEAST WIND 25 TO 35 MPH WITH
  GUSTS TO 50 MPH.

* IMPACTS...ISOLATED POWER OUTAGES CAUSED BY DOWNED TREES 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.

&&

$$

WAZ001-503-506-510-030000-
/O.NEW.KSEW.WI.Y.0025.120403T0000Z-120403T0900Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-
403 AM PDT MON APR 2 2012

...WIND ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 2 AM PDT
TUESDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO 2 AM
PDT TUESDAY. 

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

* TIMING...WINDS WILL INCREASE THIS AFTERNOON...PEAKING THIS
  EVENING. 

* WIND...SUSTAINED SOUTH TO SOUTHEAST WIND 25 TO 35 MPH WITH
  GUSTS TO 50 MPH.

* IMPACTS...ISOLATED POWER OUTAGES CAUSED BY DOWNED TREES 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.

&&

$$

33
2 follow-up statements
326 
WWUS76 KSEW 021642
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
942 AM PDT MON APR 2 2012

...WINDY CONDITIONS ALONG THE COAST AND NORTH INTERIOR TODAY...

.SOUTHEAST WINDS WILL INCREASE ALONG THE COAST AND NORTH INTERIOR
TODAY AS A COLD FRONT APPROACHES OFFSHORE. WINDS WILL EASE
OVERNIGHT TONIGHT AS THE FRONT MOVES INLAND.

WAZ516-517-030900-
/O.EXT.KSEW.WI.Y.0025.120402T1642Z-120403T0900Z/
NORTH COAST-CENTRAL COAST-
942 AM PDT MON APR 2 2012

...WIND ADVISORY NOW IN EFFECT UNTIL 2 AM PDT TUESDAY...

* SOME AFFECTED LOCATIONS...OCEAN SHORES...PACIFIC BEACH... 
  HOQUIAM...FORKS AND NEAH BAY. 

* TIMING...WINDS WILL INCREASE THROUGH MIDDAY...PEAKING THIS
  EVENING.

* WIND...SUSTAINED SOUTH TO SOUTHEAST WIND 25 TO 35 MPH WITH 
  GUSTS TO 50 MPH. 

* IMPACTS...ISOLATED POWER OUTAGES CAUSED BY DOWNED TREES 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.

&&

$$

WAZ001-503-506-510-030900-
/O.EXT.KSEW.WI.Y.0025.120402T1642Z-120403T0900Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-
942 AM PDT MON APR 2 2012

...WIND ADVISORY NOW IN EFFECT UNTIL 2 AM PDT TUESDAY...

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

* TIMING...WINDS WILL INCREASE THIS AFTERNOON...PEAKING THIS 
  EVENING. 

* WIND...SUSTAINED SOUTH TO SOUTHEAST WIND 25 TO 35 MPH WITH 
  GUSTS TO 50 MPH. 

* IMPACTS...ISOLATED POWER OUTAGES CAUSED BY DOWNED TREES 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.

&&

$$
695 
WWUS76 KSEW 030333
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
833 PM PDT MON APR 2 2012

...THE WIND ADVISORIES HAVE BEEN CANCELLED...

WAZ001-503-506-510-516-517-030445-
/O.CAN.KSEW.WI.Y.0025.000000T0000Z-120403T0900Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-NORTH COAST-CENTRAL COAST-
833 PM PDT MON APR 2 2012

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS CANCELLED THE WIND
ADVISORY. THE FRONT MOVING INTO WESTERN WASHINGTON IS NOT AS
STRONG AS IT WAS FORECAST TO BE...THE WIND ADVISORIES HAVE BEEN
CANCELLED. IT WILL BE BREEZY TONIGHT SOME AREAS.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 3:44 AM PDTWinter Storm WatchSEW12 hr
Apr 2, 2:59 PM PDTSmall Craft Advisory for Hazardous SeasSEW3 days
Apr 2, 4:08 PM PDTWinter Weather AdvisorySEW23 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.