Alert archive / North Carolina / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 163, NWS Wakefield, VA

July 23, 2017Bertie County, Hertford County, Northampton County, North Carolina

NWS Wakefield, VA issued this severe thunderstorm warning at Jul 23, 2017, 6:20 PM EDT for Bertie County, Hertford County, Northampton County, North Carolina. 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: Jul 23, 2017, 6:20 PM EDT (22:20 UTC)
Expired: Jul 23, 2017, 6:48 PM EDT
In force: 28 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Bertie County, NC, Hertford County, NC, Northampton County, NC

The radar

The Norfolk radar (KAKQ), 79 km from the middle of the area, began a volume at 22:21 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 12:00Z, 10.3 hours before the alert went out and 168 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: 1870 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 811 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 55 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 23, 3:33 PM EDT, 2 hours 47 minutes earlier.

Area forecast discussion, Jul 23, 3:33 PM EDT, 2 hours 47 minutes before

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Hazardous weather outlook, Jul 23, 3:59 PM EDT, 2 hours 21 minutes before

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In the hours before

Special weather statement, Jul 23, 3:39 PM EDT, 2 hours 41 minutes before

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Special weather statement, Jul 23, 3:49 PM EDT, 2 hours 31 minutes before

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Special weather statement, Jul 23, 4:19 PM EDT, 2 hours 1 minute before

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Special weather statement, Jul 23, 4:32 PM EDT, 1 hour 48 minutes before

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Special weather statement, Jul 23, 5:26 PM EDT, 54 minutes before

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Special weather statement, Jul 23, 6:16 PM EDT, 4 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
Jul 22, 8:01 PM EDT	Special Marine Warning	AKQ		89 min
Jul 22, 8:29 PM EDT	Special Weather Statement	AKQ	Middlesex	46 min
Jul 22, 8:44 PM EDT	Special Weather Statement	AKQ	Lancaster, Northumberland	31 min
Jul 22, 8:48 PM EDT	Special Weather Statement	AKQ	Accomack	57 min
Jul 22, 9:01 PM EDT	Special Marine Warning	AKQ		89 min
Jul 22, 9:25 PM EDT	Special Marine Warning	AKQ		65 min
Jul 22, 9:29 PM EDT	Special Weather Statement	AKQ	Richmond	46 min
Jul 22, 9:59 PM EDT	Special Weather Statement	AKQ	Louisa	46 min
Jul 22, 10:28 PM EDT	Special Marine Warning	AKQ		32 min
Jul 22, 10:45 PM EDT	Severe Thunderstorm Warning	AKQ	Fluvanna, Goochland, Louisa	45 min
Jul 22, 10:57 PM EDT	Special Weather Statement	AKQ	Caroline, Westmoreland	48 min
Jul 22, 11:11 PM EDT	Special Weather Statement	AKQ	Caroline	49 min
Jul 22, 11:33 PM EDT	Special Weather Statement	AKQ	Westmoreland	42 min
Jul 22, 11:50 PM EDT	Special Weather Statement	AKQ	Essex, King and Queen, King William, Richmond, Westmoreland	40 min
Jul 23, 12:29 AM EDT	Special Weather Statement	AKQ	King and Queen, Lancaster, Northumberland, Richmond	46 min
Jul 23, 12:30 AM EDT	Special Weather Statement	AKQ	Charles City, Chesterfield, City of Colonial Heights, City of Hopewell, City of Petersburg	45 min
Jul 23, 3:06 PM EDT	Special Marine Warning	AKQ		69 min
Jul 23, 4:19 PM EDT	Special Weather Statement	AKQ	Accomack	41 min
Jul 23, 5:27 PM EDT	Special Marine Warning	AKQ		63 min
Jul 23, 7:12 PM EDT	Special Weather Statement	AKQ	City of Chesapeake, City of Suffolk	48 min
Jul 23, 2:50 PM EDT	Special Weather Statement	AKQ	Currituck	40 min
Jul 23, 2:56 PM EDT	Special Weather Statement	AKQ	Camden, Pasquotank	49 min
Jul 23, 3:39 PM EDT	Special Weather Statement	AKQ	Currituck	51 min
Jul 23, 5:26 PM EDT	Special Weather Statement	AKQ	Northampton	49 min
Jul 23, 6:16 PM EDT	Special Weather Statement	AKQ	Hertford	44 min
Jul 23, 6:52 PM EDT	Areal Flood Advisory	AKQ	Hertford, Northampton	3 hr
Jul 23, 7:45 PM EDT	Special Weather Statement	AKQ	Bertie, Chowan	45 min
Jul 22, 8:37 PM EDT	Special Weather Statement	AKQ	Worcester	38 min
Jul 22, 10:34 PM EDT	Special Weather Statement	AKQ	Dorchester, Wicomico	41 min
Jul 22, 11:16 PM EDT	Special Weather Statement	AKQ	Wicomico, Worcester	44 min
Jul 22, 11:45 PM EDT	Special Weather Statement	AKQ	Dorchester	45 min
Jul 23, 12:04 AM EDT	Special Weather Statement	AKQ	Wicomico, Worcester	41 min
Jul 23, 12:33 AM EDT	Special Weather Statement	AKQ	Somerset	42 min
Jul 23, 12:42 AM EDT	Areal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico	3 hr
Jul 23, 1:12 AM EDT	Special Weather Statement	AKQ	Worcester	48 min
Jul 23, 2:59 PM EDT	Special Weather Statement	AKQ	Dorchester	46 min
Jul 23, 3:49 PM EDT	Special Weather Statement	AKQ	Wicomico, Worcester	41 min
Jul 23, 4:32 PM EDT	Special Weather Statement	AKQ	Worcester	43 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2017 Every severe thunderstorm warning in 2017

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.