Alert archive / Washington / Wind Advisories in 2018
Wind Advisory 21, NWS Seattle, WA
NWS Seattle, WA issued this wind advisory at Dec 28, 2018, 2:05 PM PST for San Juan County, Washington. It took effect at Dec 29, 2018, 7:00 AM PST. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Dec 28, 2018, 2:05 PM PST (22:05 UTC)
- In effect from
- Dec 29, 2018, 7:00 AM PST
- Expired
- Dec 29, 2018, 1:41 PM PST
- In force
- 7 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 22:10 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, 10.1 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 462 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 300 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
562 WWUS76 KSEW 282205 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 205 PM PST Fri Dec 28 2018 WAZ507-509>511-515>517-558-559-291215- /O.NEW.KSEW.WI.Y.0021.181229T1800Z-181230T0000Z/ Everett and Vicinity-Tacoma Area-Admiralty Inlet Area- Hood Canal Area-Western Strait of Juan De Fuca-North Coast- Central Coast-Seattle and Vicinity-Bremerton and Vicinity- 205 PM PST Fri Dec 28 2018 ...WIND ADVISORY IN EFFECT FROM 10 AM TO 4 PM PST SATURDAY... The National Weather Service in Seattle has issued a Wind Advisory, which is in effect from 10 AM to 4 PM PST Saturday. * WIND...Southerly 20 to 35 mph with gusts 45 to 55 mph. * SOME AFFECTED LOCATIONS...Port Townsend, Everett, Bremerton, Seattle, Tacoma, La Push, Ocean Shores, Westport, and Hoquiam. * TIMING...Mid morning Saturday through late Saturday afternoon. | * IMPACTS...Winds may snap weak branches that have not been pruned by recent storms, produce isolated power outages, and make the driving of high-profile vehicles difficult. 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. && $$ www.weather.gov/seattle
2 follow-up statements
933 WWUS76 KSEW 291200 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 400 AM PST Sat Dec 29 2018 WAZ556-300000- /O.EXB.KSEW.WI.Y.0021.181229T1500Z-181230T0000Z/ Bellevue and Vicinity- 400 AM PST Sat Dec 29 2018 ...WIND ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO 4 PM PST THIS AFTERNOON... The National Weather Service in Seattle has issued a Wind Advisory, which is in effect from 7 AM this morning to 4 PM PST this afternoon. * WIND...Southerly 20 to 35 mph with gusts to 45 mph. * IMPACTS...Winds may snap weak branches that have not been pruned by recent storms, produce isolated power outages, and make the driving of high-profile vehicles difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ WAZ001-503-506-300000- /O.EXB.KSEW.WI.Y.0021.181229T1500Z-181230T0000Z/ San Juan County-Western Whatcom County-Western Skagit County- 400 AM PST Sat Dec 29 2018 ...WIND ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO 4 PM PST THIS AFTERNOON... The National Weather Service in Seattle has issued a Wind Advisory, which is in effect from 7 AM this morning to 4 PM PST this afternoon. * WIND...Southerly 20 to 35 mph with gusts to 45 mph. * SOME AFFECTED LOCATIONS...Friday Harbor, Bellingham and Mount Vernon. * IMPACTS...Winds may snap weak branches that have not been pruned by recent storms, produce isolated power outages, and make the driving of high-profile vehicles difficult. 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. && $$ WAZ507-509>511-515>517-558-559-300000- /O.EXT.KSEW.WI.Y.0021.181229T1500Z-181230T0000Z/ Everett and Vicinity-Tacoma Area-Admiralty Inlet Area- Hood Canal Area-Western Strait of Juan De Fuca-North Coast- Central Coast-Seattle and Vicinity-Bremerton and Vicinity- 400 AM PST Sat Dec 29 2018 ...WIND ADVISORY NOW IN EFFECT FROM 7 AM THIS MORNING TO 4 PM PST THIS AFTERNOON... * WIND...Southerly 20 to 35 mph with gusts 45 to 50 mph. * SOME AFFECTED LOCATIONS...Port Townsend, Everett, Bremerton, Seattle, Tacoma, La Push, Ocean Shores, Westport, and Hoquiam. * IMPACTS...Winds may snap weak branches that have not been pruned by recent storms, produce isolated power outages, and make the driving of high-profile vehicles difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ www.weather.gov/seattle
888 WWUS76 KSEW 292141 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 141 PM PST Sat Dec 29 2018 WAZ001-503-506-507-509>511-515>517-556-558-559-292245- /O.CAN.KSEW.WI.Y.0021.000000T0000Z-181230T0000Z/ San Juan County-Western Whatcom County-Western Skagit County- Everett and Vicinity-Tacoma Area-Admiralty Inlet Area- Hood Canal Area-Western Strait of Juan De Fuca-North Coast- Central Coast-Bellevue and Vicinity-Seattle and Vicinity- Bremerton and Vicinity- 141 PM PST Sat Dec 29 2018 ...WIND ADVISORY IS CANCELLED... The National Weather Service in Seattle has cancelled the Wind Advisory. Winds will slowly diminish the rest of this afternoon through Sunday. $$ www.weather.gov/seattle
The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 28, 2:03 AM PST | Small Craft Advisory for Rough Bar | SEW | 3 days | |
| Dec 28, 2:03 AM PST | Small Craft Advisory | SEW | 32 hr | |
| Dec 28, 2:47 PM PST | Gale Warning | SEW | 33 hr |
Nearby
Wind Advisories in Washington, 2018Every wind advisory in 2018
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.