Alert archive / Washington / Wind Advisories in 2011
Wind Advisory 8, NWS Seattle, WA
NWS Seattle, WA issued this wind advisory at Mar 9, 2011, 6:35 AM PST for San Juan County, Washington. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Mar 9, 2011, 6:35 AM PST (14:35 UTC)
- Expired
- Mar 9, 2011, 12:00 PM PST
- In force
- 5 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 14:38 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, 2.6 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.
- Mixed-layer CAPE
- 36 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 494 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 413 m²/s²
- 0-3 km storm-relative helicity
- 541 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
202 WWUS76 KSEW 091435 NPWSEW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 635 AM PST WED MAR 9 2011 WAZ001-503-506-510-100000- /O.NEW.KSEW.WI.Y.0008.110309T1435Z-110309T2000Z/ /O.CON.KSEW.HW.A.0003.110310T1400Z-110311T0000Z/ SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY- ADMIRALTY INLET AREA- 635 AM PST WED MAR 9 2011 ...WIND ADVISORY IN EFFECT FOR THE NORTHWEST INTERIOR UNTIL NOON PST TODAY... ...HIGH WIND WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL NOON TODAY. A HIGH WIND WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY AFTERNOON. * SOME AFFECTED LOCATIONS...OAK HARBOR...BELLINGHAM...FRIDAY HARBOR...AND MOUNT VERNON. * WINDS...SOUTHERLY 20 TO 30 MPH WITH GUSTS NEAR 45 MPH THIS MORNING...EXCEPT 30 TO 35 MPH WITH GUSTS NEAR 50 MPH ACROSS WHIDBEY ISLAND. EXPECT THE WINDS TO DIMINISH THIS AFTERNOON. HOWEVER SOUTHERLY WINDS WILL PICK UP AGAIN ON THURSDAY INTO THE 25 TO 35 MPH RANGE WITH GUSTS NEAR 60 MPH. * TIMING...WINDS WILL PEAK LATE THIS MORNING AND THEN SUBSIDE. HOWEVER WINDS WILL INCREASE ON THURSDAY...WITH THE STRONGEST SPEEDS EXPECTED TO OCCUR DURING THE LATE MORNING THROUGH EARLY AFTERNOON TIME FRAME. * IMPACTS...THE STRONG AND GUSTY WINDS WILL LIKELY RESULT IN SOME POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS CONDITIONS ARE FAVORABLE FOR DAMAGING WINDS. HIGH WINDS CAN TOPPLE TREES...DOWN POWER LINES...AND DAMAGE SOME STRUCTURES. 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. && $$ WAZ516-517-100000- /O.CON.KSEW.HW.A.0003.110310T1400Z-110311T0000Z/ NORTH COAST-CENTRAL COAST- 635 AM PST WED MAR 9 2011 ...HIGH WIND WATCH REMAINS IN EFFECT FOR THE COAST FROM THURSDAY MORNING THROUGH THURSDAY AFTERNOON... A HIGH WIND WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY AFTERNOON. * SOME AFFECTED LOCATIONS...HOQUIAM AND FORKS. * WINDS...EXPECTED TO INCREASE FROM THE SOUTH AT 25 TO 35 MPH WITH GUSTS NEAR 60 MPH ON THURSDAY. * TIMING...THE STRONGEST WINDS ARE EXPECTED TO OCCUR DURING THE LATE MORNING THROUGH EARLY AFTERNOON TIME FRAME. * IMPACTS...THE POTENTIALLY DAMAGING WINDS WILL LIKELY RESULT IN SOME POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS CONDITIONS ARE FAVORABLE FOR DAMAGING WINDS. HIGH WINDS CAN TOPPLE TREES...DOWN POWER LINES...AND DAMAGE SOME STRUCTURES. && $$ WWW.WEATHER.GOV/SEATTLE
The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 8, 4:02 PM PST | Winter Storm Warning | SEW | 24 hr | |
| Mar 9, 2:39 AM PST | Gale Watch | SEW | 12 hr | |
| Mar 9, 2:46 AM PST | Winter Weather Advisory | SEW | 13 hr | |
| Mar 9, 3:24 AM PST | High Wind Watch | SEW | San Juan | 20 hr |
| Mar 9, 2:05 PM PST | River Flood Advisory | SEW | Mason | 14 hr |
| Mar 9, 2:49 PM PST | Gale Warning | SEW | 33 hr | |
| Mar 9, 2:49 PM PST | Small Craft Advisory for Rough Bar | SEW | 11 days |
Nearby
Wind Advisories in Washington, 2011Every wind advisory in 2011
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.