Alert archive / Washington / Special Weather Statements in 2021
Special Weather Statement, NWS Seattle, WA
NWS Seattle, WA issued this special weather statement at Mar 5, 2021, 3:21 PM PST for Kitsap County, Washington. It was in force for 39 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
- Mar 5, 2021, 3:21 PM PST (23:21 UTC)
- Expired
- Mar 5, 2021, 4:00 PM PST
- In force
- 39 min
- Issued by
- NWS Seattle, WA
County Kitsap County, WA
The radar
The Seattle radar (KATX), 39 km from the middle of the area, began a volume at 23:20 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, 11.4 hours before the alert went out and 161 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
- 3 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 645 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 753 m²/s²
- 0-3 km storm-relative helicity
- 930 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
762
WWUS86 KSEW 052321
SPSSEW
Special Weather Statement
National Weather Service Seattle WA
321 PM PST Fri Mar 5 2021
WAZ507-510-556-558-559-060000-
Admiralty Inlet Area-Bremerton and Vicinity-Everett and
Vicinity-Seattle and Vicinity-Bellevue and Vicinity-
321 PM PST Fri Mar 5 2021
...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL KITSAP...
SOUTHWESTERN SNOHOMISH...NORTHWESTERN KING AND SOUTHEASTERN ISLAND
COUNTIES UNTIL 400 PM PST...
At 320 PM PST, Doppler radar was tracking a strong line of
convection extending from 6 miles northwest of Mukilteo to near
Bremerton. Movement was northeast at 25 mph.
Dime size hail and winds in excess of 30 mph will be possible with
these storms.
Locations impacted include...
Seattle, Everett, Marysville, Edmonds, Redmond, Kirkland, Lynnwood,
Bothell, Mukilteo, Mountlake Terrace, Mill Creek, Woodinville,
Shoreline, Bainbridge Island, Kenmore, Lake Forest Park, Indianola,
Brier, Richmond Highlands and Kingston.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may
lead to localized flooding. Drivers should also be prepared for very
heavy rainfall.
&&
LAT...LON 4769 12215 4760 12262 4772 12255 4766 12244
4771 12238 4778 12240 4775 12254 4782 12250
4779 12240 4785 12234 4794 12231 4793 12244
4801 12240 4795 12229 4796 12225 4798 12222
4802 12233 4800 12222 4803 12225 4805 12211
TIME...MOT...LOC 2320Z 226DEG 20KT 4800 12238 4763 12258
$$
KovacikThe office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 8:23 PM PST | Small Craft Advisory | SEW | 47 hr | |
| Mar 5, 8:56 AM PST | Wind Advisory | SEW | San Juan | 5 hr |
| Mar 5, 2:54 PM PST | Gale Watch | SEW | 24 hr | |
| Mar 5, 3:04 PM PST | Special Weather Statement | SEW | Island | 26 min |
| Mar 5, 3:33 PM PST | Special Weather Statement | SEW | Skagit | 42 min |
Nearby
Special Weather Statements in Washington, 2021Every 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.