Alert archive / Virginia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 31, NWS Wakefield, VA

May 10, 20186 counties in Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at May 10, 2018, 4:49 PM EDT for 6 counties in Virginia. It was in force for 41 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: May 10, 2018, 4:49 PM EDT (20:49 UTC)
Expired: May 10, 2018, 5:30 PM EDT
In force: 41 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Charles City County, VA, Hanover County, VA, Henrico County, VA, King and Queen County, VA, King William County, VA, New Kent County, VA

The radar

The Norfolk radar (KAKQ), 68 km from the middle of the area, began a volume at 20:52 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 10, 1:14 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.8 hours before the alert went out and 154 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: 1336 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 206 m²/s²
0-3 km storm-relative helicity: 171 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 May 10, 4:37 PM EDT, 12 minutes earlier.

Area forecast discussion, May 10, 4:37 PM EDT, 12 minutes before

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Hazardous weather outlook, May 10, 4:41 PM EDT, 8 minutes before

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In the hours before

Special weather statement, May 10, 2:17 PM EDT, 2 hours 32 minutes before

Special Weather Statement
National Weather Service Wakefield VA
217 PM EDT THU MAY 10 2018

VAZ048-509-101900-
Fluvanna-Western Louisa-
217 PM EDT THU MAY 10 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN LOUISA AND
NORTHERN FLUVANNA COUNTIES...

At 217 PM EDT, radar indicated strong thunderstorms located along a
line extending from near Boswells Tavern to 6 miles north of
Schuyler. Movement was east at 40 mph.

Wind gusts in excess of 40 mph and nickel size hail are possible with
these storms.

Locations impacted include...
Louisa, Palmyra, Lake Monticello, Ferncliff, Boswells Tavern, Kents
Store, Troy, Gordonsville, Nahor, Green Springs, Zion Crossroads,
Antioch, Union Mills, Wildwood, Bybee, Waldrop, Byrd Mill,
Trevilians, Wilmington and Vawter Corner.

Strong wind gusts are possible with these storms. These wind gusts
are capable of knocking down tree limbs...small or weakened trees...
and blowing around trash cans...potted plants...lawn furniture and
other light outdoor objects.

These storms 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 3806 7826 3813 7821 3813 7818 3814 7815
      3814 7812 3815 7809 3813 7805 3814 7801
      3812 7798 3811 7793 3812 7792 3811 7791
      3790 7807 3783 7816 3784 7845
TIME...MOT...LOC 1817Z 271DEG 33KT 3808 7823 3789 7867

MRD

Local storm report, May 10, 2:50 PM EDT, 1 hour 59 minutes before

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Special weather statement, May 10, 3:15 PM EDT, 1 hour 34 minutes before

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Local storm report, May 10, 3:41 PM EDT, 1 hour 8 minutes before

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Special weather statement, May 10, 4:03 PM EDT, 46 minutes before

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Local storm report, May 10, 4:46 PM EDT, 3 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
May 9, 9:40 PM EDT	Marine Dense Fog Advisory	AKQ		10 hr
May 9, 11:54 PM EDT	Dense Fog Advisory	AKQ	Accomack, Greensville, James City, Northampton, Southampton, Surry and 10 more	6 hr
May 10, 2:17 PM EDT	Special Weather Statement	AKQ	Louisa	43 min
May 10, 2:22 PM EDT	Severe Thunderstorm Warning	AKQ	Fluvanna, Louisa	38 min
May 10, 2:57 PM EDT	Severe Thunderstorm Warning	AKQ	Fluvanna, Goochland, Louisa	48 min
May 10, 3:15 PM EDT	Special Weather Statement	AKQ	Fluvanna	45 min
May 10, 3:26 PM EDT	Severe Thunderstorm Warning	AKQ	Cumberland, Fluvanna, Goochland	49 min
May 10, 3:30 PM EDT	Severe Thunderstorm Warning	AKQ	Caroline, Hanover	45 min
May 10, 3:49 PM EDT	Severe Thunderstorm Warning	AKQ	Cumberland, Goochland, Hanover, Louisa, Powhatan	41 min
May 10, 4:03 PM EDT	Special Weather Statement	AKQ	Amelia, Nottoway, Prince Edward	42 min
May 10, 4:13 PM EDT	Severe Thunderstorm Warning	AKQ	Caroline, Essex, Hanover, King and Queen, King William, Richmond	47 min
May 10, 4:15 PM EDT	Severe Thunderstorm Warning	AKQ	Caroline, Chesterfield, Hanover, Henrico, King William, City of Richmond	45 min
May 10, 4:19 PM EDT	Severe Thunderstorm Warning	AKQ	Amelia, Chesterfield, Powhatan	41 min
May 10, 4:54 PM EDT	Special Weather Statement	AKQ	Brunswick, Lunenburg, Mecklenburg, Nottoway, Prince Edward	51 min
May 10, 4:55 PM EDT	Special Marine Warning	AKQ		65 min
May 10, 4:55 PM EDT	Severe Thunderstorm Warning	AKQ	Essex, King and Queen, Lancaster, Middlesex, Northumberland, Richmond	40 min
May 10, 4:56 PM EDT	Severe Thunderstorm Warning	AKQ	Amelia, Charles City, Chesterfield, Dinwiddie, Henrico, Prince George and 3 more	64 min
May 10, 5:06 PM EDT	Special Marine Warning	AKQ		84 min
May 10, 5:17 PM EDT	Special Marine Warning	AKQ		118 min
May 10, 5:19 PM EDT	Severe Thunderstorm Warning	AKQ	Charles City, Essex, Gloucester, James City, King and Queen, King William and 4 more	41 min
May 10, 5:35 PM EDT	Severe Thunderstorm Warning	AKQ	Brunswick, Mecklenburg	40 min
May 10, 5:39 PM EDT	Special Weather Statement	AKQ	Dinwiddie	36 min
May 10, 5:43 PM EDT	Severe Thunderstorm Warning	AKQ	Brunswick, Dinwiddie, Greensville, Prince George, Sussex	32 min
May 10, 5:43 PM EDT	Severe Thunderstorm Warning	AKQ	Gloucester, Lancaster, Mathews, Middlesex, Northumberland	47 min
May 10, 5:58 PM EDT	Special Weather Statement	AKQ	Charles City, Prince George, City of Hopewell, City of Petersburg	32 min
May 10, 5:59 PM EDT	Special Marine Warning	AKQ		2 hr
May 10, 6:08 PM EDT	Severe Thunderstorm Warning	AKQ	Isle of Wight, Prince George, Southampton, Surry, Sussex	52 min
May 10, 6:11 PM EDT	Special Weather Statement	AKQ	Greensville, City of Emporia	49 min
May 10, 6:22 PM EDT	Special Weather Statement	AKQ	Accomack	53 min
May 10, 6:31 PM EDT	Special Marine Warning	AKQ		89 min
May 10, 6:34 PM EDT	Special Marine Warning	AKQ		41 min
May 10, 6:39 PM EDT	Special Marine Warning	AKQ		96 min
May 10, 6:44 PM EDT	Special Weather Statement	AKQ	Isle of Wight, James City, Surry, York, City of Hampton, City of Newport News and 4 more	46 min
May 10, 7:01 PM EDT	Special Weather Statement	AKQ	Southampton, City of Franklin	59 min
May 10, 7:35 PM EDT	Special Weather Statement	AKQ	Northampton	10 min
May 10, 7:39 PM EDT	Special Weather Statement	AKQ	City of Chesapeake, City of Suffolk	51 min
May 10, 7:45 PM EDT	Special Marine Warning	AKQ		2 hr

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.