Alert archive / Washington / Wind Advisories in 2016

Wind Advisory 22, NWS Seattle, WA

December 18, 2016San Juan County, Washington

NWS Seattle, WA issued this wind advisory at Dec 18, 2016, 2:41 PM PST for San Juan County, Washington. It took effect at Dec 18, 2016, 10:00 PM PST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Dec 18, 2016, 2:41 PM PST (22:41 UTC)
In effect from
Dec 18, 2016, 10:00 PM PST
Expired
Dec 19, 2016, 10:00 AM PST
In force
12 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 22:45 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, 10.7 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 2016-12-18Temperature 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 2016-12-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 154 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
728 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
154 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

811 
WWUS76 KSEW 182241
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
241 PM PST SUN DEC 18 2016

WAZ001-503-506-507-510-511-516-190700-
/O.NEW.KSEW.WI.Y.0022.161219T0600Z-161219T1800Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
EVERETT AND VICINITY-ADMIRALTY INLET AREA-HOOD CANAL AREA-
NORTH COAST-
241 PM PST SUN DEC 18 2016

...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST
MONDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WIND ADVISORY...
WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST MONDAY. 

* TIMING...WINDS WILL INCREASE IN THE MIDDLE OF THE NIGHT.

* WINDS...SOUTH 20 TO 30 MPH WITH GUSTS TO 45 MPH.

* IMPACTS...TREE LIMBS MAY FALL AND LOCAL POWER OUTAGES ARE
  POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS
STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE
VEHICLES. USE EXTRA CAUTION.

&&

$$
3 follow-up statements
130 
WWUS76 KSEW 190548
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
948 PM PST SUN DEC 18 2016

WAZ001-503-506-507-510-511-516-191300-
/O.CON.KSEW.WI.Y.0022.161219T0600Z-161219T1800Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
EVERETT AND VICINITY-ADMIRALTY INLET AREA-HOOD CANAL AREA-
NORTH COAST-
948 PM PST SUN DEC 18 2016

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY...

* TIMING...SOUTHEAST WINDS WILL INCREASE TONIGHT...PEAKING IN
  STRENGTH PRIOR TO DAYBREAK MONDAY MORNING. WINDS WILL EASE
  BEHIND A FRONT THROUGH THE REST OF MONDAY MORNING.

* WINDS...SOUTH TO SOUTHEAST WIND 20 TO 30 MPH WITH GUSTS TO 45
  MPH. STRONGEST WINDS IN HOOD CANAL WILL IN THE FAR NORTH
  PORTION.

* IMPACTS...TREE LIMBS MAY FALL AND LOCAL POWER OUTAGES ARE 
  POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS
STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE
VEHICLES. USE EXTRA CAUTION.

&&

$$
184 
WWUS76 KSEW 191122
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
322 AM PST MON DEC 19 2016

WAZ517-191800-
/O.EXA.KSEW.WI.Y.0022.000000T0000Z-161219T1800Z/
CENTRAL COAST-
322 AM PST MON DEC 19 2016

...WIND ADVISORY IN EFFECT FOR THE CENTRAL COAST UNTIL 10 AM PST 
THIS MORNING...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM PST THIS MORNING. 

* WIND...SOUTHERLY WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS
  NEAR 45 MPH EARLY THIS MORNING BEFORE DIMINISHING INTO THE 10
  TO 15 MPH RANGE BY LATE THIS MORNING.

* SOME AFFECTED LOCATIONS...HOQUIAM.

* TIMING...WINDS ARE EXPECTED TO PEAK BY 8 AM PST THIS MORNING.

* IMPACTS...SNAPPED TREE LIMBS AND BRIEF LOCALIZED POWER OUTAGES
  ARE POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

WAZ516-191800-
/O.CON.KSEW.WI.Y.0022.000000T0000Z-161219T1800Z/
NORTH COAST-
322 AM PST MON DEC 19 2016

...WIND ADVISORY REMAINS IN EFFECT FOR THE NORTH COAST UNTIL 10
AM PST THIS MORNING...

* WIND...SOUTHERLY WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS
  NEAR 45 MPH EARLY THIS MORNING AND THEN BECOME WESTERLY NEAR 10
  MPH BY LATE THIS MORNING.

* SOME AFFECTED LOCATIONS...FORKS.

* TIMING...WINDS WILL PEAK BY 8 AM PST THIS MORNING.

* IMPACTS...SNAPPED TREE LIMBS AND BRIEF LOCALIZED POWER OUTAGES
  ARE POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

WAZ001-503-506-507-510-191800-
/O.CON.KSEW.WI.Y.0022.000000T0000Z-161219T1800Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
EVERETT AND VICINITY-ADMIRALTY INLET AREA-
322 AM PST MON DEC 19 2016

...WIND ADVISORY REMAINS IN EFFECT FOR THE NORTHWEST INTERIOR
LOWLANDS FROM SNOHOMISH AND ISLAND COUNTIES NORTHWARD UNTIL 10 AM
PST THIS MORNING...

* WIND...SOUTHERLY WINDS WILL INCREASE TO 20 TO 35 MPH WITH LOCAL
  GUSTS TO 50 MPH EARLY THIS MORNING BEFORE DIMINISHING INTO THE
  10 TO 20 MPH RANGE BY LATE THIS MORNING.

* SOME AFFECTED LOCATIONS...EVERETT...OAK HARBOR...AND BELLINGHAM.

* TIMING...WINDS WILL PEAK BY 10 AM PST THIS MORNING.

* IMPACTS...SNAPPED TREE LIMBS AND BRIEF LOCALIZED POWER OUTAGES
  ARE POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

WAZ511-191800-
/O.CON.KSEW.WI.Y.0022.000000T0000Z-161219T1800Z/
HOOD CANAL AREA-
322 AM PST MON DEC 19 2016

...WIND ADVISORY REMAINS IN EFFECT FOR THE HOOD CANAL AREA UNTIL
10 AM PST THIS MORNING...

* WIND...SOUTHWEST WINDS WILL INCREASE TO 15 TO 30 MPH WITH LOCAL
  GUSTS TO 45 MPH THIS MORNING BEFORE BECOMING MOSTLY LIGHT BY
  MIDDAY.

* SOME AFFECTED LOCATIONS...BRINNON.

* TIMING...WINDS WILL PEAK BY 10 AM PST THIS MORNING.

* IMPACTS...SNAPPED TREE LIMBS AND BRIEF LOCALIZED POWER OUTAGES
  ARE POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

WWW.WEATHER.GOV/SEATTLE
860 
WWUS76 KSEW 191815
NPWSEW

URGENT - WEATHER MESSAGE...RESENT
NATIONAL WEATHER SERVICE SEATTLE WA
1015 AM PST MON DEC 19 2016

WAZ001-503-506-507-510-511-200030-
/O.EXP.KSEW.WI.Y.0022.000000T0000Z-161219T1800Z/
/O.NEW.KSEW.HW.A.0007.161220T1000Z-161221T0000Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
EVERETT AND VICINITY-ADMIRALTY INLET AREA-HOOD CANAL AREA-
1015 AM PST MON DEC 19 2016

...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...
...WIND ADVISORY HAS EXPIRED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON. 

* WIND...WESTERLY WINDS ARE EXPECTED TO INCREASE TO 20 TO 35 MPH
  WITH LOCAL GUSTS TO AROUND 50 MPH EARLY TUESDAY MORNING AND THEN
  CONTINUE THROUGH MOST OF TUESDAY. IT IS POSSIBLE THAT SOME
  SPOTS MAY HAVE SUSTAINED WINDS 30 TO 40 MPH WITH GUSTS TO 60
  MPH...PARTICULARLY OVER THE NORTH INTERIOR NEAR THE STRAIT OF
  JUAN DE FUCA.

* IMPACTS...SNAPPED TREE LIMBS AND LOCALIZED POWER OUTAGES ARE
  POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH
WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH
OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

WAZ516-517-200030-
/O.EXP.KSEW.WI.Y.0022.000000T0000Z-161219T1800Z/
/O.NEW.KSEW.HW.A.0007.161220T0800Z-161221T0000Z/
NORTH COAST-CENTRAL COAST-
1015 AM PST MON DEC 19 2016

...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...
...WIND ADVISORY HAS EXPIRED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON. 

* WIND...WESTERLY WINDS ARE EXPECTED TO INCREASE TO 20 TO 35 MPH
  WITH LOCAL GUSTS TO AROUND 50 MPH LATE TONIGHT AND THEN CONTINUE
  THROUGH MOST OF TUESDAY. IT IS POSSIBLE THAT SOME SPOTS MAY HAVE
  SUSTAINED WINDS 30 TO 40 MPH WITH GUSTS TO 60 MPH.

* IMPACTS...SNAPPED TREE LIMBS AND BRIEF LOCALIZED POWER OUTAGES 
  ARE POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH
WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH
OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

WAZ504-509-514-515-555-556-558-200030-
/O.NEW.KSEW.HW.A.0007.161220T1000Z-161221T0000Z/
SOUTHWEST INTERIOR-TACOMA AREA-EASTERN STRAIT OF JUAN DE FUCA-
WESTERN STRAIT OF JUAN DE FUCA-EAST PUGET SOUND LOWLANDS-
BELLEVUE AND VICINITY-SEATTLE AND VICINITY-
1015 AM PST MON DEC 19 2016

...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON. 

* WIND...WEST TO SOUTHWEST WINDS ARE EXPECTED TO INCREASE TO 20 TO
  35 MPH WITH LOCAL GUSTS TO AROUND 50 MPH EARLY TUESDAY MORNING
  AND THEN CONTINUE THROUGH MOST OF TUESDAY. IT IS POSSIBLE THAT
  SOME SPOTS MAY HAVE SUSTAINED WINDS 30 TO 40 MPH WITH GUSTS TO
  60 MPH...THIS IS MORE LIKELY AROUND THE STRAIT OF JUAN DE FUCA.

* IMPACTS...SNAPPED TREE LIMBS AND BRIEF LOCALIZED POWER OUTAGES 
  ARE POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH
WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH
OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

WAZ512-200030-
/O.NEW.KSEW.HW.A.0007.161220T0800Z-161221T0000Z/
LOWER CHEHALIS VALLEY AREA-
1015 AM PST MON DEC 19 2016

...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON. 

* WIND...WESTERLY WINDS ARE EXPECTED TO INCREASE TO 20 TO 35 MPH
  WITH LOCAL GUSTS TO AROUND 50 MPH EARLY TUESDAY MORNING AND THEN
  CONTINUE THROUGH MOST OF TUESDAY. IT IS POSSIBLE THAT SOME SPOTS
  MAY HAVE SUSTAINED WINDS 30 TO 40 MPH WITH GUSTS TO 60 MPH. 

* IMPACTS...SNAPPED TREE LIMBS AND BRIEF LOCALIZED POWER OUTAGES 
  ARE POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH
WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH
OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 18, 2:27 AM PSTGale WarningSEW35 hr
Dec 18, 3:34 AM PSTWinter Storm WatchSEW11 hr
Dec 18, 3:35 AM PSTWinter Weather AdvisorySEW58 hr

Nearby

Wind Advisories in Washington, 2016Every wind advisory in 2016

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.