Alert archive / Virginia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 55, NWS Wakefield, VA

June 9, 20184 counties in Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Jun 9, 2018, 6:53 PM EDT for 4 counties in Virginia. 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 counties it named.

The facts

Issued: Jun 9, 2018, 6:53 PM EDT (22:53 UTC)
Expired: Jun 9, 2018, 7:18 PM EDT
In force: 25 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Essex County, VA, Lancaster County, VA, Middlesex County, VA, Richmond County, VA

The radar

The Norfolk radar (KAKQ), 95 km from the middle of the area, began a volume at 22:55 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.9 hours before the alert went out and 112 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: 733 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 972 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 51 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 Jun 9, 3:45 PM EDT, 3 hours 8 minutes earlier.

Area forecast discussion, Jun 9, 3:45 PM EDT, 3 hours 8 minutes before

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Hazardous weather outlook, Jun 9, 3:55 PM EDT, 2 hours 58 minutes before

Hazardous Weather Outlook
National Weather Service Wakefield VA
355 PM EDT Sat Jun 9 2018

NCZ012>017-030>032-102-VAZ048-060>062-065>069-079>082-087>090-092-
093-095>098-513>516-523>525-102000-
Northampton-Hertford-Gates-Pasquotank-Camden-Western Currituck-
Bertie-Chowan-Perquimans-Eastern Currituck-Fluvanna-Prince Edward-
Cumberland-Goochland-Mecklenburg-Lunenburg-Nottoway-Amelia-Powhatan-
Brunswick-Dinwiddie-Prince George-Charles City-Greensville-Sussex-
Surry-James City-Southampton-Isle of Wight-Norfolk/Portsmouth-
Suffolk-Chesapeake-Virginia Beach-Western Chesterfield-
Eastern Chesterfield (Including Col. Heights)-
Western Henrico (Including the City of Richmond)-Eastern Henrico-
York-Newport News-Hampton/Poquoson-
355 PM EDT Sat Jun 9 2018

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

.DAY ONE...This Afternoon and Tonight.

Widely scattered to isolated thunderstorms may produce heavy
downpours late this afternoon into early this evening.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Thunderstorms Sunday afternoon into Sunday evening may produce heavy
rain with localized minor flooding of creeks, streams and urban
areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

MDZ021>025-VAZ064-075>078-083>086-099-100-509>512-517>522-102000-
Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches-
Caroline-Westmoreland-Richmond-Northumberland-Lancaster-New Kent-
Gloucester-Middlesex-Mathews-Accomack-Northampton-Western Louisa-
Eastern Louisa-Western Hanover-Eastern Hanover-Western King William-
Eastern King William-Western King and Queen-Eastern King and Queen-
Western Essex-Eastern Essex-
355 PM EDT Sat Jun 9 2018

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

.DAY ONE...This Afternoon and Tonight.

Thunderstorms will continue to produce heavy rainfall late this
afternoon into this evening. Under the heaviest of rain, flooding of
streams and urban areas is possible. In addition, there is a marginal
risk for severe storms this afternoon with damaging winds being the
greatest threat.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Thunderstorms Sunday afternoon into Sunday evening may produce heavy
rain with localized minor flooding of creeks, streams and urban
areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

In the hours before

Special weather statement, Jun 9, 4:20 PM EDT, 2 hours 33 minutes before

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Special weather statement, Jun 9, 4:52 PM EDT, 2 hours 1 minute before

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Special weather statement, Jun 9, 5:21 PM EDT, 1 hour 32 minutes before

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Special weather statement, Jun 9, 5:41 PM EDT, 1 hour 12 minutes before

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Special weather statement, Jun 9, 5:56 PM EDT, 57 minutes before

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Special weather statement, Jun 9, 6:32 PM EDT, 21 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
Jun 9, 2:19 PM EDT	Special Weather Statement	AKQ	Caroline, Westmoreland	41 min
Jun 9, 4:01 PM EDT	Special Weather Statement	AKQ	Northumberland	44 min
Jun 9, 5:41 PM EDT	Special Weather Statement	AKQ	Northumberland	49 min
Jun 9, 5:46 PM EDT	Special Marine Warning	AKQ		59 min
Jun 9, 5:56 PM EDT	Special Weather Statement	AKQ	Accomack, Northampton	49 min
Jun 9, 6:19 PM EDT	Special Marine Warning	AKQ		56 min
Jun 9, 6:32 PM EDT	Special Weather Statement	AKQ	Caroline, Essex, Gloucester, Hanover, King and Queen, King William and 5 more	43 min
Jun 9, 6:37 PM EDT	Special Marine Warning	AKQ		53 min
Jun 9, 7:20 PM EDT	Special Weather Statement	AKQ	Charles City, Gloucester, King and Queen, King William, Lancaster, Mathews and 2 more	40 min
Jun 9, 7:25 PM EDT	Special Weather Statement	AKQ	Northumberland	50 min
Jun 9, 7:31 PM EDT	Special Marine Warning	AKQ		44 min
Jun 9, 12:37 PM EDT	Special Weather Statement	AKQ	Worcester	38 min
Jun 9, 1:10 PM EDT	Flash Flood Warning	AKQ	Worcester	6 hr
Jun 9, 1:50 PM EDT	Special Weather Statement	AKQ	Worcester	40 min
Jun 9, 3:28 PM EDT	Special Weather Statement	AKQ	Dorchester	47 min
Jun 9, 3:38 PM EDT	Special Weather Statement	AKQ	Dorchester	52 min
Jun 9, 4:13 PM EDT	Special Weather Statement	AKQ	Somerset	32 min
Jun 9, 4:20 PM EDT	Special Weather Statement	AKQ	Wicomico	25 min
Jun 9, 4:52 PM EDT	Special Weather Statement	AKQ	Somerset, Wicomico, Worcester	38 min
Jun 9, 5:21 PM EDT	Special Weather Statement	AKQ	Somerset, Worcester	39 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2018 Every severe thunderstorm warning 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.