Alert archive / Washington / Wind Advisories in 2009
Wind Advisory 13, NWS Seattle, WA
NWS Seattle, WA issued this wind advisory at Oct 30, 2009, 2:55 AM PDT for San Juan County, Washington. It took effect at Oct 30, 2009, 5:00 PM PDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Oct 30, 2009, 2:55 AM PDT (09:55 UTC)
- In effect from
- Oct 30, 2009, 5:00 PM PDT
- Expired
- Oct 31, 2009, 2:00 AM PDT
- In force
- 9 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 09:55 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, 9.9 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
- 2 J/kg
- Mixed-layer CIN
- -261 J/kg
- Mixed-layer LCL
- 467 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 196 m²/s²
- 0-3 km storm-relative helicity
- 245 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS76 KSEW 300955 NPWSEW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 255 AM PDT FRI OCT 30 2009 ...A COLD FRONT WILL BRING WINDY CONDITIONS TO PORTIONS OF WESTERN WASHINGTON LATE TODAY THROUGH EARLY SATURDAY MORNING... WAZ001-503-506-507-510-514-515-301800- /O.NEW.KSEW.WI.Y.0013.091031T0000Z-091031T0900Z/ 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- 255 AM PDT FRI OCT 30 2009 ...WIND ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 2 AM PDT SATURDAY... THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WIND ADVISORY FOR THE LOWLANDS NORTH OF SEATTLE INCLUDING THE STRAIT OF JUAN DE FUCA. STRONG WINDS WILL DEVELOP AHEAD OF AND ALONG A COLD FRONT THAT WILL PASS THROUGH WESTERN WASHINGTON EARLY SATURDAY MORNING. AREAS NORTH OF SEATTLE ARE EXPECTED TO EXPERIENCE THE STRONGEST WIND SPEEDS. SUSTAINED WINDS OF 30 TO 35 MPH WITH GUSTS TO 55 MPH WILL BE POSSIBLE BEGINNING LATE THIS AFTERNOON AND EASING BEHIND THE COLD FRONT EARLY SATURDAY MORNING. 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. 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 BE ALERT FOR SUDDEN...STRONG CROSS WINDS. && $$ WWW.WEATHER.GOV/SEATTLE
3 follow-up statements
000 WWUS76 KSEW 301618 NPWSEW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 918 AM PDT FRI OCT 30 2009 ...A COLD FRONT WILL BRING WINDY CONDITIONS TO PORTIONS OF WESTERN WASHINGTON LATE TODAY THROUGH EARLY SATURDAY MORNING... WAZ514-301730- /O.CAN.KSEW.WI.Y.0013.091031T0000Z-091031T0900Z/ EASTERN STRAIT OF JUAN DE FUCA- 918 AM PDT FRI OCT 30 2009 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SEATTLE HAS CANCELLED THE WIND ADVISORY. $$ WAZ515-310030- /O.UPG.KSEW.WI.Y.0013.091031T0000Z-091031T0900Z/ /O.NEW.KSEW.HW.W.0002.091030T2100Z-091031T0700Z/ WESTERN STRAIT OF JUAN DE FUCA- 918 AM PDT FRI OCT 30 2009 ...HIGH WIND WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO MIDNIGHT PDT TONIGHT FOR LAND AREAS ADJACENT TO THE WESTERN STRAIT... THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO MIDNIGHT PDT TONIGHT. STRONG SOUTH WINDS WILL DEVELOP THIS AFTERNOON OVER LAND AREAS ADJACENT TO THE WESTERN STRAIT OF JUAN DE FUCA. WIND SPEEDS ARE EXPECTED TO PEAK BETWEEN 6 AND 11 PM...WHEN SUSTAINED WINDS OF 30 TO 40 MPH WITH GUSTS TO 60 MPH ARE EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS THAT A HAZARDOUS WIND EVENT IS IMMINENT OR OCCURRING. HIGH WINDS CAN TOPPLE TREES...DOWN POWER LINES...AND DESTROY PROPERTY. && $$ WAZ001-503-506-507-510-310030- /O.CON.KSEW.WI.Y.0013.091031T0000Z-091031T0900Z/ SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY- EVERETT AND VICINITY-ADMIRALTY INLET AREA- 918 AM PDT FRI OCT 30 2009 ...WIND ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 2 AM PDT SATURDAY... A WIND ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 2 AM PDT SATURDAY. STRONG WINDS WILL DEVELOP AHEAD OF AND ALONG A COLD FRONT THAT WILL PASS THROUGH WESTERN WASHINGTON EARLY SATURDAY MORNING. AREAS NORTH OF SEATTLE ARE EXPECTED TO EXPERIENCE THE STRONGEST WIND SPEEDS. SUSTAINED WINDS OF 30 TO 35 MPH WITH GUSTS TO 55 MPH WILL BE POSSIBLE BEGINNING LATE THIS AFTERNOON AND EASING BEHIND THE COLD FRONT EARLY SATURDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS OF 30 TO 39 MPH OR GUSTS OF 45 TO 57 MPH ARE LIKELY. WINDS THIS STRONG CAN SNAP SMALL TREE BRANCHES...TOPPLE SMALL OR SHALLOW-ROOTED TREES...AND CAUSE LOCAL POWER OUTAGES. MOTORISTS...ESPECIALLY THOSE WITH HIGH PROFILE VEHICLES...SHOULD BE ALERT FOR SUDDEN...STRONG CROSS WINDS. && $$
000 WWUS76 KSEW 302222 NPWSEW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 322 PM PDT FRI OCT 30 2009 ...A COLD FRONT WILL BRING WINDY CONDITIONS TO PORTIONS OF WESTERN WASHINGTON LATE TODAY THROUGH EARLY SATURDAY MORNING... WAZ515-310600- /O.CON.KSEW.HW.W.0002.000000T0000Z-091031T0700Z/ WESTERN STRAIT OF JUAN DE FUCA- 322 PM PDT FRI OCT 30 2009 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT. SOUTH WINDS WILL INCREASE AND BECOME STRONG BY EARLY THIS EVENING OVER LAND AREAS ADJACENT TO THE WESTERN STRAIT OF JUAN DE FUCA. WIND SPEEDS ARE EXPECTED TO PEAK BETWEEN 6 AND 11 PM...WHEN SUSTAINED WINDS OF 30 TO 40 MPH WITH GUSTS TO 60 MPH ARE EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS THAT A HAZARDOUS WIND EVENT IS IMMINENT OR OCCURRING. HIGH WINDS CAN TOPPLE TREES...DOWN POWER LINES... AND DESTROY PROPERTY. && $$ WAZ001-503-506-507-510-310600- /O.CON.KSEW.WI.Y.0013.091031T0000Z-091031T0900Z/ SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY- EVERETT AND VICINITY-ADMIRALTY INLET AREA- 322 PM PDT FRI OCT 30 2009 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT SATURDAY... A WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT SATURDAY. SOUTH WINDS WILL INCREASE THROUGH EARLY THIS EVENING. AREAS NORTH OF SEATTLE ARE EXPECTED TO EXPERIENCE THE STRONGEST WIND SPEEDS. SUSTAINED WINDS OF 25 TO 35 MPH WITH GUSTS TO 50 TO 55 MPH ARE EXPECTED THIS EVENING. WIND SPPEDS WILL EASE BEHIND THE COLD FRONT EARLY SATURDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS OF 30 TO 39 MPH OR GUSTS OF 45 TO 57 MPH ARE LIKELY. WINDS THIS STRONG CAN SNAP SMALL TREE BRANCHES...TOPPLE SMALL OR SHALLOW-ROOTED TREES...AND CAUSE LOCAL POWER OUTAGES. MOTORISTS...ESPECIALLY THOSE WITH HIGH PROFILE VEHICLES...SHOULD BE ALERT FOR SUDDEN...STRONG CROSS WINDS. && $$ HANER WEATHER.GOV/SEATTLE
000 WWUS76 KSEW 310413 NPWSEW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 913 PM PDT FRI OCT 30 2009 ...WINDY CONDITIONS OVER PORTIONS OF WESTERN WASHINGTON TONIGHT THROUGH EARLY SATURDAY MORNING... WAZ515-310700- /O.CON.KSEW.HW.W.0002.000000T0000Z-091031T0700Z/ WESTERN STRAIT OF JUAN DE FUCA- 913 PM PDT FRI OCT 30 2009 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT. STRONG SOUTH WINDS WILL CONTINUE OVER LAND AREAS ADJACENT TO THE WESTERN STRAIT OF JUAN DE FUCA. WIND SPEEDS ARE EXPECTED TO PEAK BETWEEN 9 AND 11 PM...WHEN SUSTAINED WINDS OF 30 TO 40 MPH WITH GUSTS TO 60 MPH ARE EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS THAT A HAZARDOUS WIND EVENT IS IMMINENT OR OCCURRING. HIGH WINDS CAN TOPPLE TREES...DOWN POWER LINES... AND DESTROY PROPERTY. && $$ WAZ001-503-506-507-510-310900- /O.CON.KSEW.WI.Y.0013.000000T0000Z-091031T0900Z/ SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY- EVERETT AND VICINITY-ADMIRALTY INLET AREA- 913 PM PDT FRI OCT 30 2009 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT SATURDAY... A WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT SATURDAY. STRONG SOUTH WINDS OVER AREAS NORTH OF SEATTLE WILL REACH SUSTAINED SPEEDS OF 25 TO 35 MPH WITH GUSTS TO 50 TO 55 MPH. WIND SPEEDS WILL EASE BEHIND THE COLD FRONT EARLY SATURDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS OF 30 TO 39 MPH OR GUSTS OF 45 TO 57 MPH ARE LIKELY. WINDS THIS STRONG CAN SNAP SMALL TREE BRANCHES...TOPPLE SMALL OR SHALLOW-ROOTED TREES...AND CAUSE LOCAL POWER OUTAGES. MOTORISTS...ESPECIALLY THOSE WITH HIGH PROFILE VEHICLES...SHOULD BE ALERT FOR SUDDEN...STRONG CROSS WINDS. && $$
The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 30, 3:06 AM PDT | Small Craft Advisory | SEW | 39 hr | |
| Oct 30, 9:18 AM PDT | High Wind Warning | SEW | 15 hr | |
| Oct 30, 10:44 AM PDT | River Flood Warning | SEW | Pierce | 17 hr |
Nearby
Wind Advisories in Washington, 2009Every wind advisory in 2009
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.