Alert archive / Virginia / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 152, NWS Wakefield, VA

July 11, 20194 counties in Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Jul 11, 2019, 7:04 PM EDT for 4 counties in Virginia. It was in force for 24 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 11, 2019, 7:04 PM EDT (23:04 UTC)
Expired
Jul 11, 2019, 7:28 PM EDT
In force
24 min
Issued by
NWS Wakefield, VA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Chesterfield County, VA, City of Richmond, VA, Hanover County, VA, Henrico County, VA

The radar

The Norfolk radar (KAKQ), 73 km from the middle of the area, began a volume at 23:07 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 11.1 hours before the alert went out and 157 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-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2019-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 114 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2019-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
114 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
1075 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
102 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 11, 4:27 PM EDT, 2 hours 37 minutes earlier.

Area forecast discussion, Jul 11, 4:27 PM EDT, 2 hours 37 minutes before
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Hazardous weather outlook, Jul 11, 4:12 PM EDT, 2 hours 52 minutes before
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In the hours before

Special weather statement, Jul 11, 5:46 PM EDT, 1 hour 18 minutes before
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Special weather statement, Jul 11, 5:56 PM EDT, 1 hour 8 minutes before
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Special weather statement, Jul 11, 6:13 PM EDT, 51 minutes before
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Special weather statement, Jul 11, 6:19 PM EDT, 45 minutes before
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Special weather statement, Jul 11, 6:32 PM EDT, 32 minutes before
Special Weather Statement
National Weather Service Wakefield VA
632 PM EDT Thu Jul 11 2019

VAZ064-075-076-519-521-112315-
Western King and Queen-Richmond-Westmoreland-Western Essex-Caroline-
632 PM EDT Thu Jul 11 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN KING AND
QUEEN...NORTHWESTERN RICHMOND...CAROLINE...NORTHWESTERN WESTMORELAND
AND NORTHWESTERN ESSEX COUNTIES...

At 632 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Fairview Beach to Fort A.p. Hill to
near Ladysmith. Movement was east at 25 mph.

Wind gusts in excess of 40 mph are possible with these storms.

Rainfall amounts of up to 1 inch are possible with these storms.

Locations impacted include...
Colonial Beach, Bowling Green, Montross, Champlain, Milford, Port
Royal, Ladysmith, Newtown, Newland, Loretto, Leedstown, Fort A.p.
Hill, Beazley, Golansville, Hustle, Potomac Beach, Corbin, Elevon,
Supply and Penola.

If you see lightning or hear thunder, you are at risk! Take shelter
indoors immediately. If you cannot find shelter in a building a
vehicle provides safety from lightning.

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.

Motorists should use extra caution in the vicinity of these storms.
Be prepared for rapid changes in weather and road conditions. Heavy
rain could cause ponding of water on roads, and possible minor
flooding of ditches and poor drainage areas.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike more than 10 miles away from a thunderstorm.
Seek a safe shelter inside a building or vehicle.

LAT...LON 3821 7695 3817 7681 3806 7682 3801 7690
      3807 7692 3801 7691 3786 7713 3791 7723
      3788 7725 3796 7760 3812 7739 3823 7739
      3825 7735 3822 7729 3825 7723 3823 7725
      3819 7725 3814 7707 3826 7705 3828 7698
TIME...MOT...LOC 2232Z 278DEG 23KT 3827 7729 3810 7724 3797 7745

EI
Special weather statement, Jul 11, 6:55 PM EDT, 9 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 12:24 PM EDTSpecial Weather StatementAKQFluvanna36 min
Jul 11, 2:54 PM EDTSpecial Weather StatementAKQAccomack36 min
Jul 11, 5:02 PM EDTSpecial Weather StatementAKQPrince Edward43 min
Jul 11, 5:30 PM EDTSpecial Weather StatementAKQFluvanna, Louisa45 min
Jul 11, 5:35 PM EDTSpecial Weather StatementAKQLunenburg, Mecklenburg, Nottoway55 min
Jul 11, 5:46 PM EDTSpecial Weather StatementAKQAmelia, Cumberland44 min
Jul 11, 5:56 PM EDTSpecial Weather StatementAKQPrince Edward34 min
Jul 11, 6:05 PM EDTSevere Thunderstorm WarningAKQCaroline25 min
Jul 11, 6:13 PM EDTSpecial Weather StatementAKQAmelia, Cumberland, Fluvanna, Goochland, Louisa, Powhatan and 1 more47 min
Jul 11, 6:19 PM EDTSpecial Weather StatementAKQBrunswick, Dinwiddie, Lunenburg, Mecklenburg, Nottoway56 min
Jul 11, 6:32 PM EDTSpecial Weather StatementAKQCaroline43 min
Jul 11, 6:55 PM EDTSpecial Weather StatementAKQChesterfield, Hanover, Henrico, City of Colonial Heights, City of Hopewell, City of Petersburg and 1 more50 min
Jul 11, 7:06 PM EDTSpecial Weather StatementAKQEssex, Northumberland, Richmond, Westmoreland39 min
Jul 11, 7:07 PM EDTSpecial Weather StatementAKQDinwiddie, Greensville, Prince George, Sussex, City of Emporia, City of Petersburg53 min
Jul 11, 7:15 PM EDTSpecial Marine WarningAKQ2 hr
Jul 11, 7:18 PM EDTSevere Thunderstorm WarningAKQDinwiddie, Prince George, Sussex27 min
Jul 11, 7:21 PM EDTSevere Thunderstorm WarningAKQEssex, Lancaster, Northumberland, Richmond, Westmoreland39 min
Jul 11, 7:39 PM EDTSpecial Weather StatementAKQGloucester, James City, Lancaster, Mathews, Middlesex66 min
Jul 11, 7:44 PM EDTSevere Thunderstorm WarningAKQIsle of Wight, Prince George, Southampton, Surry, Sussex31 min
Jul 11, 7:46 PM EDTSpecial Marine WarningAKQ119 min
Jul 11, 12:26 PM EDTSpecial Weather StatementAKQWorcester34 min
Jul 11, 7:08 PM EDTSpecial Weather StatementAKQDorchester52 min
Jul 11, 7:33 PM EDTSevere Thunderstorm WarningAKQDorchester, Wicomico42 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2019Every severe thunderstorm warning in 2019

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.