Alert archive / Virginia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 151, NWS Blacksburg, VA

July 2, 2016Rockingham County, Stokes County, North Carolina; 5 counties in Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 2, 2016, 11:47 PM EDT for Rockingham County, Stokes County, North Carolina; 5 counties in Virginia. It was in force for 58 min. 3 reports 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: Jul 2, 2016, 11:47 PM EDT (03:47 UTC)
Expired: Jul 3, 2016, 12:45 AM EDT
In force: 58 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Rockingham County, NC, Stokes County, NC, City of Danville, VA, City of Martinsville, VA, Henry County, VA, Patrick County, VA, Pittsylvania County, VA

The radar

The Roanoke radar (KFCX), 74 km from the middle of the area, began a volume at 03:50 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
Jul 2, 11:49 PM EDT	TSTM WND DMG	2 Ene Axton, VA	HENRY COUNTY 911 CENTER REPORTS A TREE DOWN ON A VEHICLE IN THE 2350 BLOCK OF SANDY RIVER ROAD. TIME ESTIMATED FROM RADAR.
Jul 2, 11:53 PM EDT	TSTM WND DMG	1 Nnw Axton, VA	HENRY COUNTY 911 REPORTS THAT A TREE WAS DOWN ON A POWER LINE AT 463 HOLLAND COURT ROAD OFF MOUNTAIN-VALLEY ROAD. THE POWER LINE WAS ARCING.
Jul 3, 12:30 AM EDT	TSTM WND DMG	3 Ene Ridgeway, VA	HENRY COUNTY 911 CENTER REPORTS THAT A TREE WAS DOWN ON A POWER LINE IN THE 4850 BLOCK OF MITCHELL ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 3.8 hours before the alert went out and 53 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: 559 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 1433 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 205 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.7

Open this sounding in Storm Lab

The text

As transmitted.

011 
WUUS51 KRNK 030347
SVRRNK
NCC157-169-VAC089-141-143-590-690-030445-
/O.NEW.KRNK.SV.W.0151.160703T0347Z-160703T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
1147 PM EDT SAT JUL 2 2016

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN STOKES COUNTY IN NORTH CAROLINA...
  NORTHERN ROCKINGHAM COUNTY IN NORTH CAROLINA...
  SOUTHEASTERN PATRICK COUNTY IN VIRGINIA...
  SOUTHERN PITTSYLVANIA COUNTY IN VIRGINIA...
  HENRY COUNTY IN VIRGINIA...
  THE CITY OF DANVILLE IN VIRGINIA...
  THE CITY OF MARTINSVILLE IN VIRGINIA...

* UNTIL 1245 AM EDT

* AT 1147 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR DRY FORK TO NEAR PRICE TO NEAR PATRICK
  SPRINGS...MOVING EAST-SOUTHEAST AT 50 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  DANVILLE...
  EDEN...
  MARTINSVILLE...
  MAYODAN...
  AND MADISON. 

THIS INCLUDES THE FOLLOWING LOCATIONS 
THE MARTINSVILLE SPEEDWAY...MARTINSVILLE AIRPORT...AND DANVILLE
AIRPORT.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR DAMAGING WINDS...AS WELL AS DEADLY CLOUD TO
GROUND LIGHTNING. FOR YOUR SAFETY...MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING. STAY AWAY FROM WINDOWS.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF HAIL OF ANY
SIZE...AS WELL AS ANY REPORTS OF WIND DAMAGE...INCLUDING DOWNED TREES
OR LARGE LIMBS...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 3636 8013 3664 8036 3683 7915 3654 7922
      3654 7951 3647 7952
TIME...MOT...LOC 0347Z 275DEG 45KT 3671 7949 3659 7986 3656 8020 

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

RAB

2 follow-up statements

255 
WWUS51 KRNK 030420
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1220 AM EDT SUN JUL 3 2016

NCC157-169-VAC089-141-143-590-690-030445-
/O.CON.KRNK.SV.W.0151.000000T0000Z-160703T0445Z/
STOKES NC-ROCKINGHAM NC-PATRICK VA-PITTSYLVANIA VA-HENRY VA-
CITY OF DANVILLE VA-CITY OF MARTINSVILLE VA-
1220 AM EDT SUN JUL 3 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT
FOR NORTHEASTERN STOKES...NORTHERN ROCKINGHAM...SOUTHEASTERN
PATRICK... SOUTHERN PITTSYLVANIA...SOUTHERN HENRY COUNTIES...THE
CITY OF DANVILLE AND THE CITY OF MARTINSVILLE...

AT 1218 AM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR TURBEVILLE TO GATEWOOD TO EDEN...MOVING EAST AT
50 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
DANVILLE...
EDEN...
MARTINSVILLE...
MAYODAN...
AND MADISON. 

THIS INCLUDES THE FOLLOWING LOCATIONS 
THE MARTINSVILLE SPEEDWAY...MARTINSVILLE AIRPORT...AND DANVILLE
AIRPORT.

WIND GUSTS TO 60 MPH...FREQUENT CLOUD-TO-GROUND
LIGHTNING...AND TORRENTIAL RAINFALL AREA LIKELY IN THE DANVILLE CITY
AREA DURING THE NEXT 30 MINUTES.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR DAMAGING WINDS...AS WELL AS DEADLY CLOUD TO
GROUND LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY
AWAY FROM WINDOWS.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF HAIL OF ANY
SIZE...AS WELL AS ANY REPORTS OF WIND DAMAGE...INCLUDING DOWNED TREES
OR LARGE LIMBS...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 3636 8013 3664 8030 3683 7915 3654 7922
      3654 7951 3647 7952
TIME...MOT...LOC 0418Z 275DEG 45KT 3667 7901 3656 7938 3653 7972 

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

RAB

628 
WWUS51 KRNK 030442
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1242 AM EDT SUN JUL 3 2016

NCC157-169-VAC089-141-143-590-690-030451-
/O.EXP.KRNK.SV.W.0151.000000T0000Z-160703T0445Z/
STOKES NC-ROCKINGHAM NC-PATRICK VA-PITTSYLVANIA VA-HENRY VA-
CITY OF DANVILLE VA-CITY OF MARTINSVILLE VA-
1242 AM EDT SUN JUL 3 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN
STOKES...NORTHERN ROCKINGHAM...SOUTHEASTERN PATRICK... SOUTHERN
PITTSYLVANIA...SOUTHERN HENRY COUNTIES...THE CITY OF DANVILLE AND
THE CITY OF MARTINSVILLE WILL EXPIRE AT 1245 AM EDT...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED SOUTH OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY
WINDS AND VERY HEAVY RAINFALL ALONG WITH FREQUENT CLOUD-TO-GROUND
LIGHTNING ARE STILL EXPECTED WITH THESE THUNDERSTORMS FOR ANOTHER 30
MINUTES OR SO.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF HAIL OF ANY
SIZE...AS WELL AS ANY REPORTS OF WIND DAMAGE...INCLUDING DOWNED TREES
OR LARGE LIMBS...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 3636 8013 3664 8030 3683 7915 3654 7922
      3654 7951 3647 7952
TIME...MOT...LOC 0439Z 275DEG 45KT 3667 7901 3656 7938 3653 7972 

$$

RAB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 12:32 AM EDT	Severe Thunderstorm Warning	RNK	Caswell, Rockingham	58 min
Jul 3, 1:45 AM EDT	Areal Flood Advisory	RNK	Caswell, Rockingham	3 hr
Jul 2, 8:25 PM EDT	Special Weather Statement	RNK	Campbell	65 min
Jul 2, 8:57 PM EDT	Special Weather Statement	RNK	Halifax	33 min
Jul 2, 9:16 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax, Pittsylvania	59 min
Jul 2, 10:08 PM EDT	Special Weather Statement	RNK	Franklin	67 min
Jul 2, 10:23 PM EDT	Special Weather Statement	RNK	Halifax	67 min
Jul 2, 10:52 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Henry, City of Martinsville	53 min
Jul 2, 11:21 PM EDT	Special Weather Statement	RNK	Pittsylvania	54 min
Jul 2, 11:38 PM EDT	Special Weather Statement	RNK	Henry, City of Martinsville	52 min
Jul 3, 12:49 AM EDT	Areal Flood Advisory	RNK	Henry, Pittsylvania, City of Danville	3 hr
Jul 3, 3:03 PM EDT	Flash Flood Watch	RNK	Alleghany, Bath, Botetourt, Craig, Giles, Rockbridge and 3 more	37 hr

Nearby

Severe Thunderstorm Warnings in Virginia, 2016 Severe Thunderstorm Warnings in North Carolina, 2016 Every severe thunderstorm warning in 2016

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.