Alert archive / Virginia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 21, NWS Wakefield, VA

May 6, 20185 counties in Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at May 6, 2018, 9:36 PM EDT for 5 counties in Virginia. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 6, 2018, 9:36 PM EDT (01:36 UTC)
Expired
May 6, 2018, 10:15 PM EDT
In force
39 min
Issued by
NWS Wakefield, VA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Brunswick County, VA, City of Emporia, VA, Greensville County, VA, Southampton County, VA, Sussex County, VA

The radar

The Norfolk radar (KAKQ), 63 km from the middle of the area, began a volume at 01:40 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

Roanoke, VA (KRNK), launched 00:00Z, 1.6 hours before the alert went out and 173 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-pSkew-T log-p diagram, Roanoke, VA at 00:00Z on 2018-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 00:00Z on 2018-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -68 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
1357 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-68 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

035 
WUUS51 KAKQ 070136
SVRAKQ
VAC025-081-175-183-595-070215-
/O.NEW.KAKQ.SV.W.0021.180507T0136Z-180507T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wakefield VA
936 PM EDT SUN MAY 6 2018

The National Weather Service in Wakefield has issued a

* Severe Thunderstorm Warning for...
  Greensville County in southeastern Virginia...
  The City of Emporia in southeastern Virginia...
  Southwestern Southampton County in southeastern Virginia...
  Southwestern Sussex County in southeastern Virginia...
  Southeastern Brunswick County in south central Virginia...

* Until 1015 PM EDT

* At 935 PM EDT, severe thunderstorms were located along a line
  extending from near Purdy to Barley, moving east at 25 mph.

  HAZARD...60 mph wind gusts and penny size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to trees and powerlines. 

* Severe thunderstorms will be near,
  Radium around 940 PM EDT. 
  Purdy around 945 PM EDT. 
  Jarratt around 1000 PM EDT. 
  Dahlia around 1005 PM EDT. 
  Claresville and Green Plain around 1015 PM EDT. 

Other locations impacted by these severe thunderstorms include Adams
Grove, Grizzard, Bufford Crossroads, Lanes Corner, Yale, Pleasant
Shade, Slates Corner, Bryants Corner, Emporia Reservoir and Hilda.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Please report severe weather by calling 757-899-2415, posting to the
NWS Wakefield Facebook page, or using Twitter @NWSWAKEFIELDVA.

&&

LAT...LON 3679 7780 3687 7772 3687 7722 3654 7733
      3656 7782 3670 7783
TIME...MOT...LOC 0135Z 267DEG 20KT 3684 7765 3659 7772 

HAIL...0.75IN
WIND...60MPH
 
$$

BUTNER
2 follow-up statements
245 
WWUS51 KAKQ 070151
SVSAKQ

Severe Weather Statement
National Weather Service Wakefield VA
951 PM EDT SUN MAY 6 2018

VAC025-081-175-183-595-070215-
/O.CON.KAKQ.SV.W.0021.000000T0000Z-180507T0215Z/
Greensville VA-City of Emporia VA-Southampton VA-Sussex VA-
Brunswick VA-
951 PM EDT SUN MAY 6 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR GREENSVILLE...SOUTHWESTERN SOUTHAMPTON...SOUTHWESTERN SUSSEX AND
SOUTHEASTERN BRUNSWICK COUNTIES AND THE CITY OF EMPORIA...

At 950 PM EDT, severe thunderstorms were located along a line
extending from near Purdy to near Dahlia, moving east at 25 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to trees and powerlines. 

Locations impacted include...
Emporia, Purdy, Dahlia, Jarratt, Radium, Claresville, Green Plain,
Adams Grove, Grizzard, Bufford Crossroads, Lanes Corner, Yale,
Pleasant Shade, Bryants Corner, Emporia Reservoir, Hilda, Cowie
Corner, Drewryville, Ante and Brink.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3677 7775 3687 7769 3687 7722 3656 7732
      3657 7781 3668 7775
TIME...MOT...LOC 0150Z 267DEG 20KT 3684 7756 3659 7763 

HAIL...<.75IN
WIND...60MPH
 
$$

BUTNER
032 
WWUS51 KAKQ 070205
SVSAKQ

Severe Weather Statement
National Weather Service Wakefield VA
1005 PM EDT SUN MAY 6 2018

VAC025-081-175-183-595-070215-
/O.EXP.KAKQ.SV.W.0021.000000T0000Z-180507T0215Z/
Greensville VA-City of Emporia VA-Southampton VA-Sussex VA-
Brunswick VA-
1005 PM EDT SUN MAY 6 2018

...THE SEVERE THUNDERSTORM WARNING FOR GREENSVILLE...SOUTHWESTERN
SOUTHAMPTON...SOUTHWESTERN SUSSEX AND SOUTHEASTERN BRUNSWICK COUNTIES
AND THE CITY OF EMPORIA WILL EXPIRE AT 1015 PM EDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire.

LAT...LON 3677 7775 3687 7769 3687 7722 3656 7732
      3657 7781 3668 7775
TIME...MOT...LOC 0205Z 267DEG 20KT 3684 7746 3659 7753 

$$

BUTNER

The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 6, 8:05 PM EDTSevere Thunderstorm WarningAKQBrunswick, Lunenburg, Mecklenburg40 min
May 6, 8:42 PM EDTSpecial Weather StatementAKQBrunswick, Greensville63 min
May 6, 9:18 PM EDTSpecial Weather StatementAKQGloucester, James City, Surry, City of Williamsburg42 min
May 6, 9:48 PM EDTSevere Thunderstorm WarningAKQGloucester, Isle of Wight, James City, Mathews, Surry, York and 4 more42 min
May 6, 9:53 PM EDTSpecial Marine WarningAKQ67 min
May 6, 10:08 PM EDTSpecial Weather StatementAKQCity of Emporia52 min
May 6, 11:36 PM EDTSpecial Weather StatementAKQYork, City of Hampton, City of Newport News39 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2018Every 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.