Alert archive / Virginia / Tornado Warnings in 2013
Tornado Warning 3, NWS Blacksburg, VA
NWS Blacksburg, VA issued this tornado warning at Sep 21, 2013, 7:31 PM EDT for Henry County, Pittsylvania County, Virginia. It was in force for 29 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 21, 2013, 7:31 PM EDT (23:31 UTC)
- Expired
- Sep 21, 2013, 8:00 PM EDT
- In force
- 29 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
Counties Henry County, VA, Pittsylvania County, VA
The radar
The Roanoke radar (KFCX), 80 km from the middle of the area, began a volume at 23:31 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 |
|---|---|---|---|
| Sep 21, 7:51 PM EDT | TSTM WND DMG | 4 Wsw Blairs, VA | TREE DOWN IN ROAD. CAR RAN INTO TREE A FEW MINUTES LATER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Roanoke, VA (KRNK), launched 12:00Z, 11.5 hours before the alert went out and 61 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.
- Mixed-layer CAPE
- 5 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 488 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
006
WFUS51 KRNK 212331
TORRNK
VAC089-143-220000-
/O.NEW.KRNK.TO.W.0003.130921T2331Z-130922T0000Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
731 PM EDT SAT SEP 21 2013
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN HENRY COUNTY IN SOUTH CENTRAL VIRGINIA...
SOUTHERN PITTSYLVANIA COUNTY IN SOUTH CENTRAL VIRGINIA...
* UNTIL 800 PM EDT
* AT 730 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
NEAR AIKEN SUMMIT...AND MOVING EAST AT 25 MPH.
* LOCATIONS IMPACTED INCLUDE...
DANVILLE...
CHATHAM...
BLAIRS...
AXTON...
AND AIKEN SUMMIT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EVACUATE MOBILE HOMES AND GET INSIDE A STURDIER STRUCTURE. IF NONE IS
AVAILABLE...SEEK SHELTER IN A DITCH OR A LOW SPOT AND COVER YOUR
HEAD.
WHEN IT IS SAFE TO DO SO...PLEASE RELAY YOUR REPORTS OF SEVERE
WEATHER TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE AT 1...8
6 6...2 1 5...4 3 2 4. REPORTS AND PICTURES CAN ALSO BE SHARED ON THE
NATIONAL WEATHER SERVICE BLACKSBURG FACEBOOK PAGE AND ON TWITTER.
&&
LAT...LON 3666 7975 3683 7937 3667 7926 3664 7939
3664 7940 3663 7941 3661 7949 3661 7951
3656 7970
TIME...MOT...LOC 2330Z 249DEG 24KT 3662 7965
$$
161 follow-up statement
617
WWUS51 KRNK 212355
SVSRNK
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
755 PM EDT SAT SEP 21 2013
VAC143-220004-
/O.EXP.KRNK.TO.W.0003.000000T0000Z-130922T0000Z/
PITTSYLVANIA VA-
755 PM EDT SAT SEP 21 2013
...THE TORNADO WARNING FOR
SOUTHERN PITTSYLVANIA COUNTY WILL EXPIRE AT 800 PM EDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS TO BE CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.
LAT...LON 3670 7966 3683 7937 3667 7926 3664 7939
3664 7940 3663 7941 3661 7949 3661 7951
3658 7962
TIME...MOT...LOC 2353Z 249DEG 24KT 3664 7956
$$
16The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 8:07 PM EDT | Special Weather Statement | RNK | Grayson | 53 min |
| Sep 21, 3:52 PM EDT | Special Weather Statement | RNK | Alleghany, Bath, Botetourt, Craig, Floyd, Montgomery and 4 more | 53 min |
| Sep 21, 3:56 PM EDT | Special Weather Statement | RNK | Carroll | 64 min |
| Sep 21, 4:44 PM EDT | Special Weather Statement | RNK | Bedford, Botetourt, Franklin, Rockbridge, City of Buena Vista, City of Lexington and 1 more | 61 min |
| Sep 21, 4:50 PM EDT | Special Weather Statement | RNK | Patrick | 55 min |
| Sep 21, 5:47 PM EDT | Special Weather Statement | RNK | Bedford, Henry, City of Lynchburg, City of Martinsville | 58 min |
| Sep 21, 6:08 PM EDT | Severe Thunderstorm Warning | RNK | Henry, Patrick | 67 min |
| Sep 21, 6:13 PM EDT | Severe Thunderstorm Warning | RNK | Bedford, Campbell, Pittsylvania | 62 min |
| Sep 21, 6:34 PM EDT | Severe Thunderstorm Warning | RNK | Franklin, Henry, Patrick, Pittsylvania, City of Martinsville | 56 min |
| Sep 21, 6:58 PM EDT | Areal Flood Advisory | RNK | Henry, Patrick | 4 hr |
| Sep 21, 7:16 PM EDT | Special Weather Statement | RNK | Campbell | 59 min |
| Sep 21, 7:19 PM EDT | Special Weather Statement | RNK | Pittsylvania | 56 min |
Nearby
Tornado Warnings in Virginia, 2013Every tornado warning in 2013Tornadoes in 2013
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.