Alert archive / Washington / High Wind Warnings in 2017

High Wind Warning 2, NWS Seattle, WA

January 10, 2017San Juan County, Washington

NWS Seattle, WA issued this high wind warning at Jan 10, 2017, 11:03 AM PST for San Juan County, Washington. It was in force for 22 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 10, 2017, 11:03 AM PST (19:03 UTC)
Expired
Jan 11, 2017, 9:00 AM PST
In force
22 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 19:09 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, 7.1 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 12:00Z on 2017-01-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-01-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
682 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

513 
WWUS76 KSEW 101903
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
1103 AM PST TUE JAN 10 2017

WAZ001-503-110315-
/O.UPG.KSEW.WI.Y.0003.000000T0000Z-170111T0800Z/
/O.NEW.KSEW.HW.W.0002.170110T1903Z-170111T0800Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-
1103 AM PST TUE JAN 10 2017

...HIGH WIND WARNING IN EFFECT UNTIL MIDNIGHT PST TONIGHT...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL MIDNIGHT PST TONIGHT. THE WIND
ADVISORY IS NO LONGER IN EFFECT. 

* WIND...NORTHEAST WIND 20 TO 40 MPH WITH GUSTS TO 60 MPH.

* SOME AFFECTED LOCATIONS...THE WINDS WILL AFFECT WESTERN WHATCOM
  COUNTY MAINLY FROM AROUND BELLINGHAM NORTH INCLUDING THE
  IMMEDIATE COAST OF PUGET SOUND...LUMMI ISLAND...AND THE SAN
  JUAN ISLANDS.

* TIMING...WINDS WILL PROBABLY PEAK THIS EVENING AND EASE
  TONIGHT.

* IMPACTS...WINDS THIS STRONG CAN BREAK TREE LIMBS...TOPPLE SMALL
  TREES...AND CAUSE SCATTERED POWER OUTAGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WINDS CAN TOPPLE TREES ONTO ROADS, VEHICLES, AND ROOFTOPS.
FALLING TREES OR LARGE BRANCHES HAVE BEEN KNOWN TO CAUSE
FATALITIES DURING WINDSTORMS. DOWNED POWER LINES CAN CAUSE POWER
OUTAGES LASTING A COUPLE OF HOURS OR LONGER.

&&

$$

WWW.WEATHER.GOV/SEATTLE
3 follow-up statements
441 
WWUS76 KSEW 110315
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
715 PM PST TUE JAN 10 2017

WAZ001-503-110800-
/O.CON.KSEW.HW.W.0002.000000T0000Z-170111T0800Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-
715 PM PST TUE JAN 10 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...

* WIND...NORTHEAST WIND 20 TO 40 MPH WITH GUSTS TO 60 MPH.

* SOME AFFECTED LOCATIONS...THE WINDS WILL AFFECT WESTERN WHATCOM
  COUNTY INCLUDING SUMAS...LYNDEN...FERNDALE...BELLINGHAM AND THE
  IMMEDIATE COAST FROM LUMMI ISLAND UP TO BIRCH BAY...AND THE SAN
  JUAN ISLANDS.

* TIMING...WINDS WILL PROBABLY PEAK THIS EVENING AND EASE 
  TONIGHT. 

* IMPACTS...WINDS THIS STRONG CAN BREAK TREE LIMBS...TOPPLE 
  SMALL TREES...AND CAUSE SCATTERED POWER OUTAGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WINDS CAN TOPPLE TREES ONTO ROADS... VEHICLES... AND
ROOFTOPS. FALLING TREES OR LARGE BRANCHES HAVE BEEN KNOWN TO
CAUSE FATALITIES DURING WINDSTORMS. DOWNED POWER LINES CAN CAUSE
POWER OUTAGES LASTING A COUPLE OF HOURS OR LONGER.

&&

$$

WWW.WEATHER.GOV/SEATTLE
901 
WWUS76 KSEW 110619
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
1019 PM PST TUE JAN 10 2017

WAZ001-503-111300-
/O.EXT.KSEW.HW.W.0002.000000T0000Z-170111T1300Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-
1019 PM PST TUE JAN 10 2017

...HIGH WIND WARNING NOW IN EFFECT UNTIL 5 AM PST WEDNESDAY...

* WIND...NORTHEAST WIND 20 TO 40 MPH WITH GUSTS TO 60 MPH.

* SOME AFFECTED LOCATIONS...THE WINDS WILL AFFECT LOCAL AREAS OF WESTERN
  WHATCOM COUNTY INCLUDING SUMAS...LYNDEN...FERNDALE... BELLINGHAM
  AND THE IMMEDIATE COAST FROM LUMMI ISLAND UP TO BIRCH BAY...AND
  THE SAN JUAN ISLANDS.

* TIMING...WINDS WILL CONTINUE PAST MIDNIGHT THEN BEGIN EASING
  LATE TONIGHT. 

* IMPACTS...WINDS THIS STRONG CAN BREAK TREE LIMBS...TOPPLE 
  SMALL TREES...AND CAUSE SCATTERED POWER OUTAGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WINDS CAN TOPPLE TREES ONTO ROADS...VEHICLES...AND ROOFTOPS.
FALLING TREES OR LARGE BRANCHES HAVE BEEN KNOWN TO CAUSE
FATALITIES DURING WINDSTORMS. DOWNED POWER LINES CAN CAUSE POWER
OUTAGES LASTING A COUPLE OF HOURS OR LONGER.

&&

$$

WWW.WEATHER.GOV/SEATTLE
044 
WWUS76 KSEW 111234
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
434 AM PST WED JAN 11 2017

WAZ001-503-111700-
/O.EXT.KSEW.HW.W.0002.000000T0000Z-170111T1700Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-
434 AM PST WED JAN 11 2017

...HIGH WIND WARNING NOW IN EFFECT UNTIL 9 AM PST THIS MORNING...

* WIND...NORTHEAST WIND 20 TO 40 MPH WITH GUSTS TO 60 MPH. SANDY
  POINT SHORES REPORTED A WIND GUSTS OF 58 MPH AS RECENTLY AS 234
  AM.

* SOME AFFECTED LOCATIONS...THE WINDS WILL AFFECT LOCAL AREAS OF 
  WESTERN WHATCOM COUNTY INCLUDING SUMAS...LYNDEN...FERNDALE... 
  BELLINGHAM AND THE IMMEDIATE COAST FROM LUMMI ISLAND UP TO 
  BIRCH BAY...AND THE SAN JUAN ISLANDS. 

* TIMING...WINDS WILL DIMINISH SLOWLY EARLY THIS MORNING...THEN
  EASE MORE QUICKLY LATE THIS MORNING. 

* IMPACTS...WINDS THIS STRONG CAN BREAK TREE LIMBS...TOPPLE 
  SMALL TREES...AND CAUSE SCATTERED POWER OUTAGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WINDS CAN TOPPLE TREES ONTO ROADS...VEHICLES...AND ROOFTOPS.
FALLING TREES OR LARGE BRANCHES HAVE BEEN KNOWN TO CAUSE
FATALITIES DURING WINDSTORMS. DOWNED POWER LINES CAN CAUSE POWER
OUTAGES LASTING A COUPLE OF HOURS OR LONGER.

&&

$$

WWW.WEATHER.GOV/SEATTLE

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 10, 2:08 PM PSTSmall Craft AdvisorySEW24 hr

Nearby

High Wind Warnings in Washington, 2017Every high wind warning in 2017

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.