Alert archive / Maryland / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 264, NWS Wakefield, VA

August 19, 2019Worcester County, Maryland

NWS Wakefield, VA issued this severe thunderstorm warning at Aug 19, 2019, 2:18 PM EDT for Worcester County, Maryland. It was in force for 28 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 19, 2019, 2:18 PM EDT (18:18 UTC)
Expired: Aug 19, 2019, 2:46 PM EDT
In force: 28 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Worcester County, MD

The radar

The Dover AFB radar (KDOX), 69 km from the middle of the area, began a volume at 18:22 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, 6.3 hours before the alert went out and 33 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: 1552 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1081 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 48 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 19, 10:46 AM EDT, 3 hours 32 minutes earlier.

Area forecast discussion, Aug 19, 10:46 AM EDT, 3 hours 32 minutes before

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Hazardous weather outlook, Aug 19, 4:27 AM EDT, 9 hours 51 minutes before

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In the hours before

Special weather statement, Aug 19, 1:59 PM EDT, 19 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 19, 2:44 PM EDT	Special Weather Statement	AKQ	Caroline	46 min
Aug 19, 3:41 PM EDT	Special Weather Statement	AKQ	New Kent	34 min
Aug 19, 4:17 PM EDT	Special Weather Statement	AKQ	Amelia	28 min
Aug 19, 4:19 PM EDT	Special Weather Statement	AKQ	City of Virginia Beach	26 min
Aug 19, 4:36 PM EDT	Severe Thunderstorm Warning	AKQ	City of Virginia Beach	27 min
Aug 19, 4:44 PM EDT	Special Weather Statement	AKQ	Henrico	31 min
Aug 19, 4:47 PM EDT	Special Weather Statement	AKQ	Richmond	43 min
Aug 19, 5:13 PM EDT	Special Weather Statement	AKQ	Mecklenburg	32 min
Aug 19, 5:15 PM EDT	Special Weather Statement	AKQ	Henrico	30 min
Aug 19, 5:24 PM EDT	Special Weather Statement	AKQ	Dinwiddie	36 min
Aug 19, 5:28 PM EDT	Special Weather Statement	AKQ	Northumberland	32 min
Aug 19, 5:29 PM EDT	Special Weather Statement	AKQ	Essex, Richmond	46 min
Aug 19, 5:38 PM EDT	Severe Thunderstorm Warning	AKQ	Northumberland	52 min
Aug 19, 5:47 PM EDT	Severe Thunderstorm Warning	AKQ	Chesterfield, Henrico	43 min
Aug 19, 5:56 PM EDT	Special Weather Statement	AKQ	Caroline	34 min
Aug 19, 6:09 PM EDT	Special Weather Statement	AKQ	Dinwiddie	51 min
Aug 19, 6:10 PM EDT	Areal Flood Advisory	AKQ	Northumberland, Westmoreland	3 hr
Aug 19, 6:15 PM EDT	Special Weather Statement	AKQ	Northumberland	45 min
Aug 19, 6:18 PM EDT	Special Weather Statement	AKQ	Sussex	42 min
Aug 19, 6:25 PM EDT	Special Weather Statement	AKQ	Fluvanna	50 min
Aug 19, 6:27 PM EDT	Severe Thunderstorm Warning	AKQ	Brunswick, Lunenburg, Nottoway	48 min
Aug 19, 6:32 PM EDT	Special Weather Statement	AKQ	Lunenburg, Prince Edward	43 min
Aug 19, 6:37 PM EDT	Severe Thunderstorm Warning	AKQ	Lunenburg, Nottoway, Prince Edward	38 min
Aug 19, 6:47 PM EDT	Severe Thunderstorm Warning	AKQ	Lunenburg, Nottoway	28 min
Aug 19, 6:56 PM EDT	Special Weather Statement	AKQ	Lancaster	34 min
Aug 19, 6:59 PM EDT	Areal Flood Advisory	AKQ	Brunswick, Dinwiddie, Lunenburg, Nottoway, Prince Edward	3 hr
Aug 19, 7:16 PM EDT	Special Weather Statement	AKQ	Lunenburg	44 min
Aug 19, 7:22 PM EDT	Special Weather Statement	AKQ	Westmoreland	38 min
Aug 19, 7:34 PM EDT	Special Weather Statement	AKQ	Lunenburg	26 min
Aug 19, 7:39 PM EDT	Severe Thunderstorm Warning	AKQ	Essex, Richmond, Westmoreland	39 min
Aug 19, 1:59 PM EDT	Special Weather Statement	AKQ	Worcester	31 min
Aug 19, 2:49 PM EDT	Special Weather Statement	AKQ	Worcester	26 min
Aug 19, 3:37 PM EDT	Areal Flood Advisory	AKQ	Worcester	113 min
Aug 19, 4:11 PM EDT	Special Weather Statement	AKQ	Dorchester	34 min
Aug 19, 5:45 PM EDT	Special Weather Statement	AKQ	Dorchester	45 min
Aug 19, 6:53 PM EDT	Special Weather Statement	AKQ	Dorchester	52 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2019 Every 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.