Alert archive / Virginia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 25, NWS Wakefield, VA

April 28, 2016City of Chesapeake, City of Portsmouth, City of Suffolk, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Apr 28, 2016, 9:57 PM EDT for City of Chesapeake, City of Portsmouth, City of Suffolk, Virginia. It was in force for 22 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: Apr 28, 2016, 9:57 PM EDT (01:57 UTC)
Expired: Apr 28, 2016, 10:19 PM EDT
In force: 22 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties City of Chesapeake, VA, City of Portsmouth, VA, City of Suffolk, VA

The radar

The Norfolk radar (KAKQ), 59 km from the middle of the area, began a volume at 02:00 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

Newport, NC (KMHX), launched 00:00Z, 2.0 hours before the alert went out and 223 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: 227 J/kg
Mixed-layer CIN: -164 J/kg
Mixed-layer LCL: 1235 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 109 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Apr 28, 9:33 PM EDT, 24 minutes earlier.

Area forecast discussion, Apr 28, 9:33 PM EDT, 24 minutes before

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Hazardous weather outlook, Apr 28, 8:52 PM EDT, 1 hour 5 minutes before

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In the hours before

Local storm report, Apr 28, 8:50 PM EDT, 1 hour 7 minutes before

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Special weather statement, Apr 28, 8:59 PM EDT, 58 minutes before

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Special weather statement, Apr 28, 9:04 PM EDT, 53 minutes before

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Special weather statement, Apr 28, 9:17 PM EDT, 40 minutes before

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Special weather statement, Apr 28, 9:34 PM EDT, 23 minutes before

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Special weather statement, Apr 28, 9:37 PM EDT, 20 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
Apr 28, 8:14 PM EDT	Special Weather Statement	AKQ	Hanover	46 min
Apr 28, 8:21 PM EDT	Special Weather Statement	AKQ	Amelia, Cumberland, Powhatan	39 min
Apr 28, 8:27 PM EDT	Marine Dense Fog Advisory	AKQ		7 hr
Apr 28, 8:28 PM EDT	Severe Thunderstorm Warning	AKQ	Amelia, Cumberland, Powhatan	32 min
Apr 28, 8:49 PM EDT	Special Weather Statement	AKQ	City of Franklin	26 min
Apr 28, 8:59 PM EDT	Special Weather Statement	AKQ	Amelia	46 min
Apr 28, 9:04 PM EDT	Special Weather Statement	AKQ	Essex, King and Queen, King William	26 min
Apr 28, 9:17 PM EDT	Special Weather Statement	AKQ	City of Suffolk	28 min
Apr 28, 9:34 PM EDT	Special Weather Statement	AKQ	King and Queen	41 min
Apr 28, 9:37 PM EDT	Special Weather Statement	AKQ	Chesterfield	23 min
Apr 28, 10:00 PM EDT	Special Weather Statement	AKQ	Lancaster, Middlesex	30 min
Apr 28, 10:02 PM EDT	Special Weather Statement	AKQ	Chesterfield, Henrico, New Kent, City of Colonial Heights, City of Hopewell, City of Petersburg and 1 more	28 min
Apr 28, 10:11 PM EDT	Special Weather Statement	AKQ	City of Hampton, City of Newport News, City of Poquoson	34 min
Apr 28, 10:18 PM EDT	Special Weather Statement	AKQ	City of Norfolk, City of Virginia Beach	42 min
Apr 28, 10:22 PM EDT	Severe Thunderstorm Warning	AKQ	City of Norfolk, City of Portsmouth	23 min
Apr 28, 10:30 PM EDT	Special Weather Statement	AKQ	Charles City, Chesterfield, Dinwiddie, Henrico, James City, Prince George and 4 more	45 min
Apr 28, 10:34 PM EDT	Special Weather Statement	AKQ	Gloucester, Lancaster, Mathews, Middlesex	26 min
Apr 28, 10:35 PM EDT	Special Marine Warning	AKQ		55 min
Apr 28, 10:40 PM EDT	Special Weather Statement	AKQ	York, City of Hampton, City of Newport News, City of Norfolk, City of Poquoson, City of Virginia Beach	35 min
Apr 28, 11:04 PM EDT	Special Weather Statement	AKQ	Mathews	11 min
Apr 28, 11:07 PM EDT	Special Marine Warning	AKQ		38 min
Apr 28, 11:16 PM EDT	Special Weather Statement	AKQ	Charles City, James City, Prince George, York, City of Williamsburg	44 min
Apr 28, 11:19 PM EDT	Special Weather Statement	AKQ	Northampton	41 min
Apr 28, 8:15 PM EDT	Special Weather Statement	AKQ	Bertie, Hertford, Northampton	45 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2016 Every severe thunderstorm warning in 2016

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.