Alert archive / Virginia / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 31, NWS Wakefield, VA

April 30, 2014James City County, City of Newport News, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Apr 30, 2014, 3:33 PM EDT for James City County, City of Newport News, Virginia. 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: Apr 30, 2014, 3:33 PM EDT (19:33 UTC)
Expired: Apr 30, 2014, 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

Counties City of Newport News, VA, James City County, VA

The radar

The Norfolk radar (KAKQ), 40 km from the middle of the area, began a volume at 19:33 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 30, 1:15 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.6 hours before the alert went out and 207 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: 4 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 446 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 524 m²/s²
0-3 km storm-relative helicity: 633 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 30, 2:27 PM EDT, 1 hour 6 minutes earlier.

Area forecast discussion, Apr 30, 2:27 PM EDT, 1 hour 6 minutes before

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Hazardous weather outlook, Apr 30, 1:26 PM EDT, 2 hours 7 minutes before

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In the hours before

Special weather statement, Apr 30, 1:20 PM EDT, 2 hours 13 minutes before

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Special weather statement, Apr 30, 1:49 PM EDT, 1 hour 44 minutes before

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Special weather statement, Apr 30, 2:22 PM EDT, 1 hour 11 minutes before

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Special weather statement, Apr 30, 2:58 PM EDT, 35 minutes before

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Special weather statement, Apr 30, 3:09 PM EDT, 24 minutes before

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Special weather statement, Apr 30, 3:12 PM EDT, 21 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 30, 12:52 AM EDT	Special Weather Statement	AKQ	Brunswick, Greensville	38 min
Apr 30, 3:56 AM EDT	Special Weather Statement	AKQ	Goochland, Louisa	49 min
Apr 30, 4:42 AM EDT	Special Weather Statement	AKQ	Hanover, City of Richmond	33 min
Apr 30, 6:25 AM EDT	Coastal Flood Advisory	AKQ	Lancaster, Middlesex, Northumberland, Richmond, Westmoreland	12 hr
Apr 30, 6:25 AM EDT	Special Weather Statement	AKQ	Mecklenburg	50 min
Apr 30, 6:55 AM EDT	Special Weather Statement	AKQ	Mecklenburg	35 min
Apr 30, 7:32 AM EDT	Special Weather Statement	AKQ	Lunenburg	43 min
Apr 30, 8:05 AM EDT	Special Weather Statement	AKQ	Amelia, Lunenburg, Nottoway	40 min
Apr 30, 8:46 AM EDT	Special Weather Statement	AKQ	Amelia, Goochland, Nottoway, Powhatan	44 min
Apr 30, 9:25 AM EDT	Special Weather Statement	AKQ	Hanover, Powhatan	50 min
Apr 30, 9:26 AM EDT	Areal Flood Advisory	AKQ	Lunenburg	3 hr
Apr 30, 11:46 AM EDT	Special Weather Statement	AKQ	Greensville, City of Emporia	44 min
Apr 30, 11:52 AM EDT	River Flood Warning	AKQ	Buckingham, Fluvanna	61 hr
Apr 30, 11:52 AM EDT	River Flood Warning	AKQ	Chesterfield, Henrico, City of Richmond	55 hr
Apr 30, 11:52 AM EDT	River Flood Warning	AKQ	Amelia, Cumberland, Prince Edward	48 hr
Apr 30, 11:52 AM EDT	River Flood Warning	AKQ	Amelia, Chesterfield, Powhatan	5 days
Apr 30, 11:52 AM EDT	River Flood Warning	AKQ	Fluvanna	40 hr
Apr 30, 12:19 PM EDT	Tornado Warning	AKQ	Brunswick, Greensville	26 min
Apr 30, 12:37 PM EDT	Areal Flood Advisory	AKQ	Lunenburg	3 hr
Apr 30, 12:43 PM EDT	Tornado Warning	AKQ	Greensville, Sussex	32 min
Apr 30, 1:14 PM EDT	Special Weather Statement	AKQ	New Kent	61 min
Apr 30, 1:20 PM EDT	Special Weather Statement	AKQ	Amelia, Cumberland, Goochland, Nottoway, Powhatan, Prince Edward	55 min
Apr 30, 1:29 PM EDT	Severe Thunderstorm Warning	AKQ	Essex, King and Queen, King William, Lancaster, Middlesex, Richmond	46 min
Apr 30, 1:41 PM EDT	Areal Flood Advisory	AKQ	Essex, King and Queen, King William, Lancaster, Middlesex, New Kent and 3 more	3 hr
Apr 30, 1:49 PM EDT	Special Weather Statement	AKQ	Charles City, Greensville, James City, Prince George, Southampton, Surry and 4 more	56 min
Apr 30, 2:22 PM EDT	Special Weather Statement	AKQ	Isle of Wight	38 min
Apr 30, 2:49 PM EDT	Areal Flood Advisory	AKQ	Greensville, Isle of Wight, James City, Southampton, Surry, Sussex and 7 more	4 hr
Apr 30, 2:58 PM EDT	Special Weather Statement	AKQ	Gloucester, Isle of Wight, James City, Mathews, Middlesex, Surry and 5 more	62 min
Apr 30, 3:09 PM EDT	Special Weather Statement	AKQ	Amelia, Hanover, Powhatan, City of Richmond	66 min
Apr 30, 3:12 PM EDT	Special Weather Statement	AKQ	Caroline, Westmoreland	48 min
Apr 30, 3:29 PM EDT	Areal Flood Warning	AKQ	Caroline, Hanover, King William, Louisa, New Kent	6 hr
Apr 30, 3:30 PM EDT	Special Marine Warning	AKQ		30 min
Apr 30, 4:02 PM EDT	Special Weather Statement	AKQ	Essex, Westmoreland	58 min
Apr 30, 4:05 PM EDT	River Flood Warning	AKQ	Brunswick	3 days
Apr 30, 4:36 PM EDT	Special Weather Statement	AKQ	York, City of Newport News	24 min
Apr 30, 5:01 PM EDT	Areal Flood Advisory	AKQ	Gloucester, James City, Lancaster, Mathews, Middlesex, York	3 hr
Apr 30, 5:11 PM EDT	Special Weather Statement	AKQ	City of Suffolk	49 min
Apr 30, 5:23 PM EDT	Special Weather Statement	AKQ	Gloucester, Middlesex	37 min
Apr 30, 7:51 PM EDT	Coastal Flood Warning	AKQ	Northumberland, Westmoreland	12 hr
Apr 30, 7:51 PM EDT	Coastal Flood Advisory	AKQ	Accomack, Lancaster, Middlesex, Northampton, Richmond, Surry and 1 more	7 hr
Apr 29, 10:32 PM EDT	Special Weather Statement	AKQ	Bertie	58 min
Apr 29, 11:31 PM EDT	Special Weather Statement	AKQ	Bertie, Chowan	59 min
Apr 30, 12:00 AM EDT	Special Weather Statement	AKQ	Bertie	30 min
Apr 30, 12:16 AM EDT	Special Weather Statement	AKQ	Northampton	29 min
Apr 30, 12:32 AM EDT	Special Weather Statement	AKQ	Northampton	28 min
Apr 30, 4:22 PM EDT	Special Weather Statement	AKQ	Bertie, Chowan	38 min
Apr 30, 4:52 PM EDT	Special Weather Statement	AKQ	Chowan, Perquimans	68 min
Apr 30, 5:35 PM EDT	Special Weather Statement	AKQ	Camden, Currituck, Pasquotank, Perquimans	55 min
Apr 30, 2:56 AM EDT	Coastal Flood Warning	AKQ	Dorchester, Somerset, Wicomico	3 hr
Apr 30, 11:38 AM EDT	Coastal Flood Warning	AKQ	Dorchester, Somerset, Wicomico	8 hr

Nearby

Severe Thunderstorm Warnings in Virginia, 2014 Every severe thunderstorm warning in 2014

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.