Alert archive / Virginia / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 119, NWS Wakefield, VA

July 21, 20204 counties in Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Jul 21, 2020, 8:16 PM EDT for 4 counties in Virginia. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 21, 2020, 8:16 PM EDT (00:16 UTC)
Expired: Jul 21, 2020, 8:43 PM EDT
In force: 27 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Caroline County, VA, Essex County, VA, Richmond County, VA, Westmoreland County, VA

The radar

The Norfolk radar (KAKQ), 114 km from the middle of the area, began a volume at 00:15 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 0.3 hours before the alert went out and 137 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: 3628 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 1027 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Wakefield, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 21, 7:16 PM EDT, 1 hour earlier.

Area forecast discussion, Jul 21, 7:16 PM EDT, 1 hour before

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Hazardous weather outlook, Jul 21, 2:32 PM EDT, 5 hours 44 minutes before

Hazardous Weather Outlook
National Weather Service Wakefield VA
232 PM EDT Tue Jul 21 2020

MDZ021>024-NCZ012>017-030>032-102-VAZ048-060>062-064>069-075>090-092-
093-095>100-509>525-221845-
Dorchester-Wicomico-Somerset-Inland Worcester-Northampton-Hertford-
Gates-Pasquotank-Camden-Western Currituck-Bertie-Chowan-Perquimans-
Eastern Currituck-Fluvanna-Prince Edward-Cumberland-Goochland-
Caroline-Mecklenburg-Lunenburg-Nottoway-Amelia-Powhatan-Westmoreland-
Richmond-Northumberland-Lancaster-Brunswick-Dinwiddie-Prince George-
Charles City-New Kent-Gloucester-Middlesex-Mathews-Greensville-
Sussex-Surry-James City-Southampton-Isle of Wight-Norfolk/Portsmouth-
Suffolk-Chesapeake-Virginia Beach-Accomack-Western Louisa-
Eastern Louisa-Western Hanover-Eastern Hanover-Western Chesterfield-
Eastern Chesterfield (Including Col. Heights)-
Western Henrico (Including the City of Richmond)-Eastern Henrico-
Western King William-Eastern King William-Western King and Queen-
Eastern King and Queen-Western Essex-Eastern Essex-York-Newport News-
Hampton/Poquoson-
232 PM EDT Tue Jul 21 2020

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT WEDNESDAY...

This Hazardous Weather Outlook is for southeast Maryland, northeast
North Carolina, central Virginia, east central Virginia, eastern
Virginia, north central Virginia, south central Virginia and
southeast Virginia.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

In addition, localized flash flooding will be possible this
afternoon and evening from slow moving thunderstorms.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MDZ025-221845-
Maryland Beaches-
232 PM EDT Tue Jul 21 2020

This Hazardous Weather Outlook is for southeast Maryland.

.DAY ONE...This afternoon and tonight.

Localized heavy rainfall will be possible this afternoon and
evening.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jul 21, 7:23 PM EDT, 53 minutes before

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Special weather statement, Jul 21, 7:25 PM EDT, 51 minutes before

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Special weather statement, Jul 21, 7:40 PM EDT, 36 minutes before

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Special weather statement, Jul 21, 7:47 PM EDT, 29 minutes before

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Special weather statement, Jul 21, 8:00 PM EDT, 16 minutes before

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Special weather statement, Jul 21, 8:10 PM EDT, 6 minutes before

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The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 21, 8:00 PM EDT	Special Weather Statement	AKQ	Goochland	30 min
Jul 21, 8:10 PM EDT	Special Weather Statement	AKQ	Westmoreland	50 min
Jul 21, 8:26 PM EDT	Special Weather Statement	AKQ	Accomack	64 min
Jul 21, 8:50 PM EDT	Special Weather Statement	AKQ	Westmoreland	25 min
Jul 21, 9:39 PM EDT	Special Weather Statement	AKQ	Chesterfield, Dinwiddie, Hanover, Henrico, City of Colonial Heights, City of Hopewell and 2 more	51 min
Jul 21, 10:15 PM EDT	Severe Thunderstorm Warning	AKQ	Charles City, Chesterfield, Hanover, Henrico, New Kent	45 min
Jul 21, 10:22 PM EDT	Special Weather Statement	AKQ	Prince George, City of Petersburg	38 min
Jul 21, 10:41 PM EDT	Special Weather Statement	AKQ	Charles City	19 min
Jul 21, 10:48 PM EDT	Special Weather Statement	AKQ	Gloucester, Middlesex, City of Williamsburg	42 min
Jul 21, 10:57 PM EDT	Special Weather Statement	AKQ	Chesterfield	33 min
Jul 21, 11:27 PM EDT	Areal Flood Advisory	AKQ	Gloucester	10 min
Jul 21, 11:29 PM EDT	Special Weather Statement	AKQ	Gloucester, Mathews, Middlesex, York, City of Newport News, City of Williamsburg	46 min
Jul 21, 11:37 PM EDT	Flash Flood Warning	AKQ	Gloucester	3 hr
Jul 21, 11:40 PM EDT	Special Weather Statement	AKQ	Amelia, Cumberland, Powhatan	50 min
Jul 21, 11:45 PM EDT	Areal Flood Advisory	AKQ	James City, York, City of Williamsburg	12 min
Jul 21, 11:57 PM EDT	Flash Flood Warning	AKQ	James City, York, City of Williamsburg	3 hr
Jul 22, 12:15 AM EDT	Special Weather Statement	AKQ	Surry, City of Newport News	45 min
Jul 22, 12:42 AM EDT	Special Weather Statement	AKQ	Chesterfield, Cumberland, Powhatan, City of Richmond	48 min
Jul 22, 1:07 AM EDT	Areal Flood Advisory	AKQ	Chesterfield, Henrico, City of Hopewell, City of Richmond	3 hr
Jul 22, 1:17 AM EDT	Special Weather Statement	AKQ	Charles City, Chesterfield, Henrico, City of Colonial Heights, City of Hopewell, City of Petersburg	43 min
Jul 22, 2:29 PM EDT	Special Weather Statement	AKQ	Louisa	46 min
Jul 22, 3:23 PM EDT	Special Weather Statement	AKQ	Louisa	37 min
Jul 22, 4:05 PM EDT	Special Weather Statement	AKQ	Fluvanna, Louisa	55 min
Jul 22, 4:40 PM EDT	Special Weather Statement	AKQ	Caroline	65 min
Jul 22, 4:59 PM EDT	Special Weather Statement	AKQ	Amelia, Cumberland, Fluvanna, Goochland, Hanover, Louisa and 4 more	61 min
Jul 22, 5:25 PM EDT	Severe Thunderstorm Warning	AKQ	Cumberland	50 min
Jul 22, 5:46 PM EDT	Special Weather Statement	AKQ	Caroline, Essex, Westmoreland	59 min
Jul 22, 6:18 PM EDT	Special Weather Statement	AKQ	City of Norfolk, City of Portsmouth	42 min
Jul 22, 6:55 PM EDT	Special Weather Statement	AKQ	City of Richmond	50 min
Jul 22, 7:00 PM EDT	Special Weather Statement	AKQ	City of Virginia Beach	45 min
Jul 22, 7:03 PM EDT	Special Marine Warning	AKQ		57 min
Jul 22, 7:20 PM EDT	Special Marine Warning	AKQ		55 min
Jul 21, 9:30 PM EDT	Special Weather Statement	AKQ	Dorchester	60 min
Jul 21, 9:53 PM EDT	Special Weather Statement	AKQ	Dorchester	52 min
Jul 21, 11:56 PM EDT	Special Weather Statement	AKQ	Somerset	49 min
Jul 22, 12:29 AM EDT	Special Weather Statement	AKQ	Worcester	46 min
Jul 22, 12:45 AM EDT	Special Weather Statement	AKQ	Worcester	45 min
Jul 22, 4:54 PM EDT	Special Weather Statement	AKQ	Dorchester	51 min
Jul 22, 5:12 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	63 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2020 Every severe thunderstorm warning in 2020

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.