Alert archive / Virginia / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 113, NWS Blacksburg, VA

June 6, 2002Pittsylvania County, City of Danville, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jun 6, 2002, 3:31 PM EDT for Pittsylvania County, City of Danville, Virginia. It was in force for 29 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: Jun 6, 2002, 3:31 PM EDT (19:31 UTC)
Expired: Jun 6, 2002, 4:00 PM EDT
In force: 29 min
Issued by: NWS Blacksburg, VA
Area: Whole counties

Counties City of Danville, VA, Pittsylvania County, VA

The radar

The Roanoke radar (KFCX), 86 km from the middle of the area, began a volume at 19:35 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
Jun 6, 2:30 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 7.5 hours before the alert went out and 56 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: 506 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 810 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 55 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KRNK 061931
SVRRNK
VAC143-590-062000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
330 PM EDT THU JUN 6 2002

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL PITTSYLVANIA COUNTY IN SOUTH CENTRAL VIRGINIA   
  DANVILLE CITY IN SOUTH CENTRAL VIRGINIA

* UNTIL 400 PM EDT.

* AT 330 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 2 MILES NORTHWEST OF BLAIRS...MOVING EAST AT 40
  MPH.

HAIL UP TO NICKEL SIZE IN DIAMETER CAN BE EXPECTED WITH THIS STORM.

SOME LOCATIONS THREATENED THROUGH 400 PM EDT INCLUDE BLAIRS...DRY 
FORK...KEELING...CHESTNUT LEVEL

RELAY SEVERE WEATHER REPORTS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1...8 6 6...2 1 5...4 3 2 4.

$$

06

LAT...LON 3677 7951 3660 7944 3668 7922 3696 7921

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 2:30 PM EDT	Severe Thunderstorm Warning	RNK	Amherst	45 min
Jun 6, 2:42 PM EDT	Severe Thunderstorm Warning	RNK	Buckingham	33 min
Jun 6, 3:22 PM EDT	Severe Thunderstorm Warning	RNK	Buckingham	23 min
Jun 6, 3:52 PM EDT	Severe Thunderstorm Warning	RNK	Grayson, City of Galax	38 min
Jun 6, 4:06 PM EDT	Severe Thunderstorm Warning	RNK	Carroll	39 min
Jun 6, 4:13 PM EDT	Severe Thunderstorm Warning	RNK	Carroll	32 min
Jun 6, 4:47 PM EDT	Severe Thunderstorm Warning	RNK	Patrick	28 min
Jun 6, 5:14 PM EDT	Severe Thunderstorm Warning	RNK	Franklin	31 min
Jun 6, 5:42 PM EDT	Severe Thunderstorm Warning	RNK	Campbell, Pittsylvania	33 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.