Alert archive / Virginia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 52, NWS Wakefield, VA

May 14, 20186 counties in Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at May 14, 2018, 9:08 PM EDT for 6 counties in Virginia. It was in force for 37 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: May 14, 2018, 9:08 PM EDT (01:08 UTC)
Expired: May 14, 2018, 9:45 PM EDT
In force: 37 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 Norfolk, VA, City of Portsmouth, VA, City of Suffolk, VA, City of Virginia Beach, VA, Isle of Wight County, VA

The radar

The Norfolk radar (KAKQ), 61 km from the middle of the area, began a volume at 01:09 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
May 14, 6:11 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 1.1 hours before the alert went out and 152 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: 2 J/kg
Mixed-layer CIN: -306 J/kg
Mixed-layer LCL: 1134 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 104 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 May 14, 9:05 PM EDT, 3 minutes earlier.

Area forecast discussion, May 14, 9:05 PM EDT, 3 minutes before

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Hazardous weather outlook, May 14, 6:18 PM EDT, 2 hours 50 minutes before

Hazardous Weather Outlook
National Weather Service Wakefield VA
618 PM EDT Mon May 14 2018

MDZ021>025-VAZ048-060>062-064>069-075>090-092-093-095>100-509>525-
152230-
Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches-
Fluvanna-Prince Edward-Cumberland-Goochland-Caroline-Mecklenburg-
Lunenburg-Nottoway-Amelia-Powhatan-Westmoreland-Richmond-
Northumberland-Lancaster-Brunswick-Dinwiddie-Prince George-
Charles City-New Kent-Gloucester-Middlesex-Mathews-Greensville-
Sussex-Surry-James City-Southampton-Isle of Wight-Norfolk/Portsmouth-
Suffolk-Chesapeake-Virginia Beach-Accomack-Northampton-
Western Louisa-Eastern Louisa-Western Hanover-Eastern Hanover-
Western Chesterfield-Eastern Chesterfield (Including Col. Heights)-
Western Henrico (Including the City of Richmond)-Eastern Henrico-
Western King William-Eastern King William-Western King and Queen-
Eastern King and Queen-Western Essex-Eastern Essex-York-Newport News-
Hampton/Poquoson-
618 PM EDT Mon May 14 2018

...SEVERE THUNDERSTORM WATCH 92 IN EFFECT UNTIL 1 AM EDT TUESDAY...

This Hazardous Weather Outlook is for southeast Maryland, central
Virginia, east central Virginia, eastern Virginia, north central
Virginia, south central Virginia and southeast Virginia.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Severe Thunderstorm Watch.

An area of showers and thunderstorms is expected to move across the
region later this evening. Some of the storms will have the potential
to produce large hail and damaging winds of 60 mph or greater.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Increasing chances for showers and thunderstorms are anticipated
from Wednesday through the end of the week. Although severe weather
is currently not anticipated, the potential exists for locally heavy
rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

NCZ012>017-030>032-102-152230-
Northampton-Hertford-Gates-Pasquotank-Camden-Western Currituck-
Bertie-Chowan-Perquimans-Eastern Currituck-
618 PM EDT Mon May 14 2018

This Hazardous Weather Outlook is for northeast North Carolina.

.DAY ONE...Tonight.

A shower or thunderstorm will be possible this evening, with the
potential for gusty winds and small hail in the strongest
thunderstorms.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Increasing chances for showers and thunderstorms are anticipated
from Wednesday through the end of the week. Although severe weather
is currently not anticipated, the potential exists for locally heavy
rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

In the hours before

Local storm report, May 14, 8:15 PM EDT, 53 minutes before

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Local storm report, May 14, 8:25 PM EDT, 43 minutes before

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Local storm report, May 14, 8:28 PM EDT, 40 minutes before

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Special weather statement, May 14, 8:33 PM EDT, 35 minutes before

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Special weather statement, May 14, 8:51 PM EDT, 17 minutes before

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Local storm report, May 14, 9:02 PM EDT, 6 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
May 14, 8:15 PM EDT	Severe Thunderstorm Warning	AKQ	Charles City, Chesterfield, Dinwiddie, Gloucester, James City, King and Queen and 12 more	45 min
May 14, 8:33 PM EDT	Special Weather Statement	AKQ	Lancaster, Northumberland	42 min
May 14, 8:42 PM EDT	Severe Thunderstorm Warning	AKQ	Isle of Wight, Southampton, Surry, Sussex, York, City of Hampton and 2 more	48 min
May 14, 8:51 PM EDT	Special Weather Statement	AKQ	Accomack, Northampton	39 min
May 14, 8:55 PM EDT	Special Marine Warning	AKQ		95 min
May 14, 9:20 PM EDT	Special Marine Warning	AKQ		85 min
May 14, 9:25 PM EDT	Special Weather Statement	AKQ	City of Chesapeake, City of Franklin, City of Suffolk	50 min
May 14, 9:46 PM EDT	Special Weather Statement	AKQ	City of Virginia Beach	59 min
May 14, 8:11 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico	34 min
May 14, 10:43 PM EDT	Special Weather Statement	AKQ	Bertie, Camden, Chowan, Currituck, Gates, Hertford and 2 more	62 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2018 Every severe thunderstorm warning in 2018

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.