Alert archive / Virginia / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 21, NWS Wakefield, VA

April 28, 2002Southampton County, City of Franklin, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Apr 28, 2002, 7:59 PM EDT for Southampton County, City of Franklin, Virginia. It was in force for 31 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 28, 2002, 7:59 PM EDT (23:59 UTC)
Expired: Apr 28, 2002, 8:30 PM EDT
In force: 31 min
Issued by: NWS Wakefield, VA
Area: Whole counties

Counties City of Franklin, VA, Southampton County, VA

The radar

The Norfolk radar (KAKQ), 32 km from the middle of the area, began a volume at 00:04 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.

What was reported inside it

Time	Report	Where	Remark
Apr 28, 8:20 PM EDT	Thunderstorm Wind	Boykins, VA	Trees down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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 28, 6:00 PM EDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 12.0 hours before the alert went out and 198 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: 23 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 468 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 394 m²/s²
0-3 km storm-relative helicity: 418 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

054 
WUUS51 KAKQ 282359
SVRAKQ
VAC175-620-290030-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WAKEFIELD VA
757 PM EDT SUN APR 28 2002

THE NATIONAL WEATHER SERVICE IN WAKEFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CITY OF FRANKLIN IN SOUTHEAST VIRGINIA
  SOUTHAMPTON COUNTY IN SOUTHEAST VIRGINIA

* UNTIL 830 PM EDT

* AT 757 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 2 MILES SOUTHEAST OF ADAMS GROVE...MOVING EAST
  AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR
  WORRELL AT 800 PM
  BRANCHVILLE AND CAPRON AT 805 PM
  SHILOH AND BOYKINS AT 810 PM
  NEWSOMS AT 815 PM
  SUNBEAM AND HANDSOM AT 820 PM

THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING
  HAIL UP TO THE SIZE OF QUARTERS.
  DAMAGING WINDS GREATER THAN 60 MILES AN HOUR.

THIS IS A DANGEROUS STORM. STAY AWAY FROM WINDOWS.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING.

$$

GINGRICH

LAT...LON 3675 7735 3667 7692 3662 7690 3656 7694
          3656 7728 3659 7736 3671 7742

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 6:01 PM EDT	Severe Thunderstorm Warning	AKQ	Lunenburg	44 min
Apr 28, 6:42 PM EDT	Severe Thunderstorm Warning	AKQ	Lunenburg	28 min
Apr 28, 6:45 PM EDT	Severe Thunderstorm Warning	AKQ	Dinwiddie	45 min
Apr 28, 6:53 PM EDT	Severe Thunderstorm Warning	AKQ	Mecklenburg	47 min
Apr 28, 7:01 PM EDT	Severe Thunderstorm Warning	AKQ	Brunswick	44 min
Apr 28, 7:34 PM EDT	Severe Thunderstorm Warning	AKQ	Greensville, City of Emporia	31 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2002 Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.