Alert archive / Virginia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 109, NWS Wakefield, VA

August 8, 2018Lunenburg County, Mecklenburg County, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Aug 8, 2018, 5:44 PM EDT for Lunenburg County, Mecklenburg County, Virginia. It was in force for 46 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: Aug 8, 2018, 5:44 PM EDT (21:44 UTC)
Expired: Aug 8, 2018, 6:30 PM EDT
In force: 46 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Lunenburg County, VA, Mecklenburg County, VA

The radar

The Norfolk radar (KAKQ), 117 km from the middle of the area, began a volume at 21:45 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

Roanoke, VA (KRNK), launched 12:00Z, 9.7 hours before the alert went out and 115 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: 49 J/kg
Mixed-layer CIN: -130 J/kg
Mixed-layer LCL: 1106 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 56 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 Aug 7, 7:37 PM EDT, 22 hours 7 minutes earlier.

Area forecast discussion, Aug 7, 7:37 PM EDT, 22 hours 7 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
Aug 7, 8:33 PM EDT	Special Weather Statement	AKQ	Nottoway	27 min
Aug 8, 3:43 PM EDT	Special Weather Statement	AKQ	Fluvanna, Louisa	47 min
Aug 8, 4:30 PM EDT	Special Weather Statement	AKQ	Goochland, Louisa	45 min
Aug 8, 4:54 PM EDT	Special Weather Statement	AKQ	Prince Edward	51 min
Aug 8, 5:27 PM EDT	Special Weather Statement	AKQ	Lunenburg	48 min
Aug 8, 5:53 PM EDT	Special Weather Statement	AKQ	Mecklenburg	52 min
Aug 8, 6:31 PM EDT	Special Weather Statement	AKQ	Brunswick	44 min
Aug 8, 6:47 PM EDT	Special Weather Statement	AKQ	New Kent	43 min
Aug 8, 6:52 PM EDT	Special Weather Statement	AKQ	Fluvanna	38 min
Aug 8, 7:26 PM EDT	Special Weather Statement	AKQ	Fluvanna	49 min
Aug 8, 7:54 PM EDT	Special Weather Statement	AKQ	Goochland	36 min
Aug 7, 8:02 PM EDT	Special Weather Statement	AKQ	Dorchester	28 min
Aug 7, 8:30 PM EDT	Special Weather Statement	AKQ	Dorchester	30 min
Aug 7, 8:50 PM EDT	Special Weather Statement	AKQ	Somerset	25 min
Aug 7, 8:57 PM EDT	Special Weather Statement	AKQ	Dorchester	33 min
Aug 7, 9:44 PM EDT	Special Weather Statement	AKQ	Wicomico	31 min
Aug 7, 10:14 PM EDT	Special Weather Statement	AKQ	Wicomico	31 min
Aug 8, 5:37 PM EDT	Special Weather Statement	AKQ	Worcester	8 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.