Alert archive / Washington / Special Weather Statements in 2021

Special Weather Statement, NWS Seattle, WA

November 9, 2021Grays Harbor County, Washington

NWS Seattle, WA issued this special weather statement at Nov 9, 2021, 2:50 PM PST for Grays Harbor County, Washington. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Nov 9, 2021, 2:50 PM PST (22:50 UTC)
Expired: Nov 9, 2021, 3:15 PM PST
In force: 25 min
Issued by: NWS Seattle, WA
Hail: 0.25 in
Wind: 50

County Grays Harbor County, WA

The radar

The Langley Hill radar (KLGX), 33 km from the middle of the area, began a volume at 22:52 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, 10.8 hours before the alert went out and 98 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 599 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 887 m²/s²
0-3 km storm-relative helicity: 1203 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Seattle, WA wrote its last area forecast discussion before this special weather statement went out at Nov 9, 2:21 PM PST, 29 minutes earlier.

Area forecast discussion, Nov 9, 2:21 PM PST, 29 minutes before

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In the hours before

Special weather statement, Nov 9, 1:36 PM PST, 1 hour 14 minutes before

Special Weather Statement
National Weather Service Seattle WA
136 PM PST Tue Nov 9 2021

WAZ507-510-511-555-556-558-559-092215-
Admiralty Inlet Area-Bremerton and Vicinity-Hood Canal Area-East
Puget Sound Lowlands-Everett and Vicinity-Seattle and
Vicinity-Bellevue and Vicinity-
136 PM PST Tue Nov 9 2021

...Strong thunderstorms will impact portions of eastern Kitsap...
southwestern Snohomish...northwestern King...northwestern Pierce and
southeastern Island Counties through 215 PM PST...

At 135 PM PST, Doppler radar was tracking an area of strong
thunderstorms 7 miles southwest of Edmonds, moving east at 40 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Seattle, Bellevue, Everett, Edmonds, Bremerton, Renton, Redmond,
Kirkland, Sammamish, Lynnwood, Bothell, Burien, Issaquah, Lake
Stevens, Mukilteo, Mountlake Terrace, Mill Creek, Monroe, Woodinville
and Newcastle.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4747 12199 4741 12251 4751 12247 4746 12237
      4748 12236 4758 12254 4742 12253 4740 12263
      4792 12257 4792 12256 4780 12248 4778 12240
      4791 12232 4796 12244 4799 12236 4792 12232
      4812 12194 4783 12187
TIME...MOT...LOC 2135Z 251DEG 41KT 4771 12244

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

PULLIN

Special weather statement, Nov 9, 1:52 PM PST, 58 minutes before

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Local storm report, Nov 9, 1:58 PM PST, 52 minutes before

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Special weather statement, Nov 9, 2:14 PM PST, 36 minutes before

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Special weather statement, Nov 9, 2:38 PM PST, 12 minutes before

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Special weather statement, Nov 9, 2:50 PM PST, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 8, 10:15 PM PST	River Flood Warning	SEW	Mason	46 hr
Nov 9, 12:15 AM PST	Gale Warning	SEW		20 hr
Nov 9, 12:15 AM PST	Storm Warning	SEW		7 hr
Nov 9, 1:50 AM PST	High Wind Warning	SEW	San Juan	8 hr
Nov 9, 4:04 AM PST	Special Weather Statement	SEW	Clallam	26 min
Nov 9, 6:29 AM PST	Special Weather Statement	SEW	Island	46 min
Nov 9, 7:17 AM PST	Special Weather Statement	SEW	Skagit, Whatcom	28 min
Nov 9, 11:15 AM PST	Special Weather Statement	SEW	Grays Harbor	45 min
Nov 9, 11:23 AM PST	Special Marine Warning	SEW		52 min
Nov 9, 11:40 AM PST	Tornado Warning	SEW	Kitsap	35 min
Nov 9, 11:59 AM PST	Tornado Warning	SEW	Kitsap	17 min
Nov 9, 12:01 PM PST	Special Marine Warning	SEW		44 min
Nov 9, 12:24 PM PST	Special Weather Statement	SEW	Mason	51 min
Nov 9, 12:58 PM PST	Special Weather Statement	SEW	Clallam	32 min
Nov 9, 1:36 PM PST	Special Weather Statement	SEW	Kitsap	39 min
Nov 9, 1:52 PM PST	Special Weather Statement	SEW	Grays Harbor	38 min
Nov 9, 2:00 PM PST	Severe Thunderstorm Warning	SEW	Grays Harbor, Mason	30 min
Nov 9, 2:14 PM PST	Special Weather Statement	SEW	Snohomish	46 min
Nov 9, 2:27 PM PST	Severe Thunderstorm Warning	SEW	Mason, Thurston	33 min
Nov 9, 2:38 PM PST	Special Weather Statement	SEW	Kitsap	37 min
Nov 9, 2:41 PM PST	Special Marine Warning	SEW		28 min

Nearby

Special Weather Statements in Washington, 2021 Every special weather statement in 2021

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.