Alert archive / North Carolina / Tornado Warnings in 2007

Tornado Warning 1, NWS Blacksburg, VA

October 24, 2007Pittsylvania County, Virginia; Caswell County, Rockingham County, North Carolina

NWS Blacksburg, VA issued this tornado warning at Oct 24, 2007, 10:07 AM EDT for Pittsylvania County, Virginia; Caswell County, Rockingham County, North Carolina. It was in force for 23 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: Oct 24, 2007, 10:07 AM EDT (14:07 UTC)
Expired: Oct 24, 2007, 10:30 AM EDT
In force: 23 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon

Counties Caswell County, NC, Rockingham County, NC, Pittsylvania County, VA

The radar

The Roanoke radar (KFCX), 82 km from the middle of the area, began a volume at 14:08 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 12:00Z, 2.1 hours before the alert went out and 66 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: 5 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 598 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 95 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS51 KRNK 241407
TORRNK
NCC033-157-VAC143-241430-
/O.NEW.KRNK.TO.W.0001.071024T1407Z-071024T1430Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
1007 AM EDT WED OCT 24 2007

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN ROCKINGHAM COUNTY IN NORTH CENTRAL NORTH CAROLINA
  NORTHWESTERN CASWELL COUNTY IN NORTH CENTRAL NORTH CAROLINA
  SOUTHWESTERN PITTSYLVANIA COUNTY IN SOUTH CENTRAL VIRGINIA

* UNTIL 1030 AM EDT.

* AT 1004 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR RUFFIN...OR
  ABOUT NEAR MAYFIELD...MOVING NORTH AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  RUFFIN...
  MAYFIELD...

DO NOT USE HIGHWAY OVERPASSES FOR SHELTER. OVERPASSES DO NOT PROVIDE
PROTECTION FROM TORNADIC WINDS. VEHICLES STOPPED UNDER BRIDGES BLOCK
TRAFFIC AND PREVENT PEOPLE FROM GETTING OUT OF THE STORMS PATH AND
TO SHELTER. IF YOU CANNOT DRIVE AWAY FROM THE TORNADO...GET OUT OF
YOUR VEHICLE AND LIE FLAT IN A DITCH AS A LAST RESORT.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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

LAT...LON 3673 7942 3637 7951 3644 7972 3676 7948
TIME...MOT...LOC 1407Z 202DEG 24KT 3649 7957

$$

AMS

1 follow-up statement

000 
WWUS51 KRNK 241419
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1019 AM EDT WED OCT 24 2007

NCC033-157-241429-
/O.CAN.KRNK.TO.W.0001.000000T0000Z-071024T1430Z/
ROCKINGHAM NC-CASWELL NC-
1019 AM EDT WED OCT 24 2007

...THE TORNADO WARNING FOR NORTHWESTERN CASWELL AND NORTHEASTERN
ROCKINGHAM COUNTIES IS CANCELLED...

LAT...LON 3676 7948 3673 7942 3672 7943 3655 7947
      3655 7961 3655 7963 3656 7964 3659 7961
TIME...MOT...LOC 1419Z 202DEG 24KT 3656 7953

$$

VAC143-241430-
/O.CON.KRNK.TO.W.0001.000000T0000Z-071024T1430Z/
PITTSYLVANIA VA-
1019 AM EDT WED OCT 24 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 AM EDT FOR
SOUTHWESTERN PITTSYLVANIA COUNTY...

AT 1017 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED OVER SOUTHWESTERN
PITTSYLVANIA COUNTY...OR ABOUT NEAR MAYFIELD...MOVING NORTH AT 25
MPH.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE 
INDICATED COUNTY.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3676 7948 3673 7942 3672 7943 3655 7947
      3655 7961 3655 7963 3656 7964 3659 7961
TIME...MOT...LOC 1419Z 202DEG 24KT 3656 7953

$$

AMS

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 24, 9:34 AM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania, City of Danville	56 min
Oct 24, 10:28 AM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania, City of Danville	62 min
Oct 24, 10:30 AM EDT	Tornado Warning	RNK	Pittsylvania, City of Danville	30 min
Oct 24, 11:17 AM EDT	Severe Thunderstorm Warning	RNK	Campbell, Pittsylvania	43 min
Oct 24, 4:27 PM EDT	Tornado Warning	RNK	Franklin, Henry, Pittsylvania	33 min
Oct 24, 5:26 PM EDT	Flash Flood Warning	RNK	Henry, City of Martinsville	3 hr
Oct 24, 5:48 PM EDT	Flash Flood Warning	RNK	Franklin	3 hr

Nearby

Tornado Warnings in North Carolina, 2007 Tornado Warnings in Virginia, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.