Alert archive / Virginia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 17, NWS Wakefield, VA

February 25, 20175 counties in Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Feb 25, 2017, 5:45 PM EST for 5 counties in Virginia. It was in force for 30 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: Feb 25, 2017, 5:45 PM EST (22:45 UTC)
Expired: Feb 25, 2017, 6:15 PM EST
In force: 30 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties City of Hampton, VA, City of Newport News, VA, City of Poquoson, VA, Isle of Wight County, VA, York County, VA

The radar

The Norfolk radar (KAKQ), 48 km from the middle of the area, began a volume at 22:49 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
Feb 25, 1:30 PM EST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.8 hours before the alert went out and 135 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 960 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 83 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 Feb 25, 5:39 PM EST, 6 minutes earlier.

Area forecast discussion, Feb 25, 5:39 PM EST, 6 minutes before

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Hazardous weather outlook, Feb 25, 5:05 PM EST, 40 minutes before

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In the hours before

Local storm report, Feb 25, 4:40 PM EST, 1 hour 5 minutes before

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Special weather statement, Feb 25, 4:48 PM EST, 57 minutes before

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Local storm report, Feb 25, 5:00 PM EST, 45 minutes before

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Local storm report, Feb 25, 5:20 PM EST, 25 minutes before

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Special weather statement, Feb 25, 5:36 PM EST, 9 minutes before

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Special weather statement, Feb 25, 5:38 PM EST, 7 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
Feb 25, 1:28 PM EST	Special Weather Statement	AKQ	Cumberland, Goochland, Prince Edward	47 min
Feb 25, 1:48 PM EST	Severe Thunderstorm Warning	AKQ	Amelia, Chesterfield, Goochland, Nottoway, Powhatan, Prince Edward	42 min
Feb 25, 2:06 PM EST	Special Weather Statement	AKQ	Prince Edward	39 min
Feb 25, 2:11 PM EST	Special Weather Statement	AKQ	Lunenburg	49 min
Feb 25, 2:18 PM EST	Severe Thunderstorm Warning	AKQ	Lunenburg, Nottoway, Prince Edward	42 min
Feb 25, 2:28 PM EST	Severe Thunderstorm Warning	AKQ	Amelia, Chesterfield, Goochland, Hanover, Henrico, Powhatan and 1 more	47 min
Feb 25, 2:43 PM EST	Special Weather Statement	AKQ	Goochland	47 min
Feb 25, 2:50 PM EST	Severe Thunderstorm Warning	AKQ	Caroline, Essex, Hanover	40 min
Feb 25, 2:51 PM EST	Severe Thunderstorm Warning	AKQ	Amelia, Chesterfield, Dinwiddie, Nottoway	39 min
Feb 25, 3:04 PM EST	Special Weather Statement	AKQ	Lunenburg	26 min
Feb 25, 3:05 PM EST	Special Weather Statement	AKQ	Mecklenburg	25 min
Feb 25, 3:13 PM EST	Severe Thunderstorm Warning	AKQ	Essex, Hanover, Henrico, King and Queen, King William, Richmond and 1 more	47 min
Feb 25, 3:16 PM EST	Severe Thunderstorm Warning	AKQ	Amelia, Chesterfield, Dinwiddie, Prince George, City of Colonial Heights, City of Hopewell	44 min
Feb 25, 3:17 PM EST	Special Weather Statement	AKQ	Mecklenburg	43 min
Feb 25, 3:27 PM EST	Severe Thunderstorm Warning	AKQ	Caroline, Essex, Richmond, Westmoreland	33 min
Feb 25, 3:41 PM EST	Special Weather Statement	AKQ	Mecklenburg	49 min
Feb 25, 3:42 PM EST	Severe Thunderstorm Warning	AKQ	Charles City, Chesterfield, Henrico, New Kent, Prince George, City of Colonial Heights and 1 more	48 min
Feb 25, 3:43 PM EST	Severe Thunderstorm Warning	AKQ	Brunswick, Mecklenburg	36 min
Feb 25, 3:53 PM EST	Tornado Warning	AKQ	Charles City, Chesterfield, Henrico, New Kent, City of Hopewell	19 min
Feb 25, 3:57 PM EST	Severe Thunderstorm Warning	AKQ	Richmond, Westmoreland	18 min
Feb 25, 4:08 PM EST	Tornado Warning	AKQ	Westmoreland	22 min
Feb 25, 4:14 PM EST	Severe Thunderstorm Warning	AKQ	Charles City, Gloucester, James City, King and Queen, King William, Middlesex and 1 more	46 min
Feb 25, 4:18 PM EST	Special Weather Statement	AKQ	Dinwiddie, City of Petersburg	42 min
Feb 25, 4:22 PM EST	Special Weather Statement	AKQ	Brunswick	38 min
Feb 25, 4:24 PM EST	Special Weather Statement	AKQ	Northumberland	36 min
Feb 25, 4:31 PM EST	Special Marine Warning	AKQ		59 min
Feb 25, 4:39 PM EST	Special Weather Statement	AKQ	Charles City, New Kent, Prince George, City of Hopewell, City of Petersburg	51 min
Feb 25, 4:42 PM EST	Severe Thunderstorm Warning	AKQ	Gloucester, King and Queen, Lancaster, Mathews, Middlesex	38 min
Feb 25, 4:48 PM EST	Special Weather Statement	AKQ	Charles City, Gloucester, Isle of Wight, James City, Mathews, Prince George and 7 more	42 min
Feb 25, 5:14 PM EST	Special Marine Warning	AKQ		2 hr
Feb 25, 5:23 PM EST	Severe Thunderstorm Warning	AKQ	Accomack, Northampton	67 min
Feb 25, 5:26 PM EST	Special Marine Warning	AKQ		94 min
Feb 25, 5:36 PM EST	Special Weather Statement	AKQ	Mathews, York, City of Hampton, City of Newport News, City of Poquoson	39 min
Feb 25, 6:09 PM EST	Special Marine Warning	AKQ		96 min
Feb 25, 6:11 PM EST	Severe Thunderstorm Warning	AKQ	Northampton	37 min
Feb 25, 6:12 PM EST	Special Marine Warning	AKQ		63 min
Feb 25, 6:52 PM EST	Special Weather Statement	AKQ	Southampton, City of Franklin	38 min
Feb 25, 4:15 PM EST	Severe Thunderstorm Warning	AKQ	Dorchester	13 min
Feb 25, 4:39 PM EST	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	51 min
Feb 25, 5:38 PM EST	Special Weather Statement	AKQ	Worcester	67 min

Nearby

Severe Thunderstorm Warnings in Virginia, 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.