Alert archive / Maryland / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 147, NWS Wakefield, VA

June 29, 2019Dorchester County, Maryland

NWS Wakefield, VA issued this severe thunderstorm warning at Jun 29, 2019, 3:33 PM EDT for Dorchester County, Maryland. It was in force for 27 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 29, 2019, 3:33 PM EDT (19:33 UTC)
Expired: Jun 29, 2019, 4:00 PM EDT
In force: 27 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Dorchester County, MD

The radar

The Dover AFB radar (KDOX), 72 km from the middle of the area, began a volume at 19:36 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, 7.6 hours before the alert went out and 81 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: 783 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 1214 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 17 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 28, 5:46 PM EDT, 21 hours 47 minutes earlier.

Area forecast discussion, Jun 28, 5:46 PM EDT, 21 hours 47 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 28, 8:30 PM EDT	Special Weather Statement	AKQ	Louisa	30 min
Jun 28, 8:43 PM EDT	Special Weather Statement	AKQ	Essex	47 min
Jun 29, 2:38 PM EDT	Special Weather Statement	AKQ	King George	37 min
Jun 29, 2:52 PM EDT	Special Weather Statement	AKQ	Caroline	23 min
Jun 29, 3:16 PM EDT	Special Weather Statement	AKQ	Westmoreland	44 min
Jun 29, 4:06 PM EDT	Special Weather Statement	AKQ	Louisa	54 min
Jun 29, 4:40 PM EDT	Special Weather Statement	AKQ	Louisa	50 min
Jun 29, 5:32 PM EDT	Special Weather Statement	AKQ	Lunenburg	43 min
Jun 29, 6:11 PM EDT	Special Marine Warning	AKQ		79 min
Jun 29, 2:42 PM EDT	Special Weather Statement	AKQ	Dorchester	48 min
Jun 29, 3:23 PM EDT	Special Weather Statement	AKQ	Dorchester	37 min
Jun 29, 4:17 PM EDT	Special Weather Statement	AKQ	Dorchester	43 min
Jun 29, 5:45 PM EDT	Special Weather Statement	AKQ	Dorchester	45 min
Jun 29, 6:32 PM EDT	Special Weather Statement	AKQ	Wicomico	28 min
Jun 29, 7:54 PM EDT	Special Weather Statement	AKQ	Worcester	21 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.