Alert archive / Virginia / Tornado Warnings in 2016

Tornado Warning 12, NWS Blacksburg, VA

September 28, 2016Amherst County, Appomattox County, Virginia

NWS Blacksburg, VA issued this tornado warning at Sep 28, 2016, 6:42 PM EDT for Amherst County, Appomattox County, Virginia. It was in force for 33 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 28, 2016, 6:42 PM EDT (22:42 UTC)
Expired: Sep 28, 2016, 7:15 PM EDT
In force: 33 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

Counties Amherst County, VA, Appomattox County, VA

The radar

The Roanoke radar (KFCX), 133 km from the middle of the area, began a volume at 22:45 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 28, 6:50 PM EDT	TSTM WND DMG	4 W Riverville, VA	NUMEROUS LARGE TREE LIMBS WERE BLOW DOWN.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 28, 3:13 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 10.7 hours before the alert went out and 63 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2684 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 19 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

734 
WFUS51 KRNK 282242
TORRNK
VAC009-011-282315-
/O.NEW.KRNK.TO.W.0012.160928T2242Z-160928T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
642 PM EDT WED SEP 28 2016

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN APPOMATTOX COUNTY IN CENTRAL VIRGINIA...
  SOUTHEASTERN AMHERST COUNTY IN CENTRAL VIRGINIA...

* UNTIL 715 PM EDT
    
* AT 641 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR STONEWALL...MOVING EAST AT 30 MPH.

  HAZARD...TORNADO AND GOLF BALL SIZE HAIL. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  
           TREE DAMAGE IS LIKELY. 

* LOCATIONS IMPACTED INCLUDE...
  BENT CREEK...
  OAKVILLE...
  RIVERVILLE...
  STONEWALL...
  AND TOWER HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW!

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF HAIL OF ANY
SIZE...AS WELL AS REPORTS OF ANY 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 3740 7900 3743 7902 3750 7904 3756 7891
      3754 7890 3755 7888 3754 7884 3754 7882
      3755 7882 3745 7870 3745 7873
TIME...MOT...LOC 2241Z 249DEG 24KT 3747 7897 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

RAB

2 follow-up statements

844 
WWUS51 KRNK 282300
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
700 PM EDT WED SEP 28 2016

VAC009-282309-
/O.CAN.KRNK.TO.W.0012.000000T0000Z-160928T2315Z/
AMHERST VA-
700 PM EDT WED SEP 28 2016

...THE TORNADO WARNING FOR SOUTHEASTERN AMHERST COUNTY IS
CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED
AND MOVED OUT OF THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN
CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT FOR
SOUTH CENTRAL AND CENTRAL VIRGINIA.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF HAIL OF ANY
SIZE...AS WELL AS REPORTS OF ANY 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 3745 7874 3744 7880 3744 7892 3750 7895
      3750 7892 3752 7889 3753 7889 3753 7888
      3754 7886 3754 7882 3755 7882 3745 7870
TIME...MOT...LOC 2259Z 251DEG 23KT 3750 7883 

$$

VAC011-282315-
/O.CON.KRNK.TO.W.0012.000000T0000Z-160928T2315Z/
APPOMATTOX VA-
700 PM EDT WED SEP 28 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM EDT FOR 
NORTHWESTERN APPOMATTOX COUNTY...
    
AT 659 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER BENT CREEK...MOVING EAST AT 25 MPH.

HAZARD...TORNADO AND HALF DOLLAR SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE DAMAGE 
         IS LIKELY. 

LOCATIONS IMPACTED INCLUDE...
BENT CREEK...
AND TOWER HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW!

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF HAIL OF ANY
SIZE...AS WELL AS REPORTS OF ANY 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 3745 7874 3744 7880 3744 7892 3750 7895
      3750 7892 3752 7889 3753 7889 3753 7888
      3754 7886 3754 7882 3755 7882 3745 7870
TIME...MOT...LOC 2259Z 251DEG 23KT 3750 7883 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

RAB

708 
WWUS51 KRNK 282310
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
710 PM EDT WED SEP 28 2016

VAC011-282319-
/O.EXP.KRNK.TO.W.0012.000000T0000Z-160928T2315Z/
APPOMATTOX VA-
710 PM EDT WED SEP 28 2016

...THE TORNADO WARNING FOR NORTHWESTERN APPOMATTOX COUNTY WILL
EXPIRE AT 715 PM EDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND HAS EXITED THE WARNED AREA. THEREFORE...THE WARNING WILL
BE ALLOWED TO EXPIRE.  HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL
POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT FOR
SOUTH CENTRAL AND CENTRAL VIRGINIA.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF HAIL OF ANY
SIZE...AS WELL AS REPORTS OF ANY 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.

REMEMBER...A SEVERE THUNDERSTORM WARNING STILL REMAINS IN EFFECT FOR
BUCKINGHAM COUNTY UNTIL 800 PM EDT.

LAT...LON 3745 7874 3744 7880 3744 7892 3750 7895
      3750 7892 3752 7889 3753 7889 3753 7888
      3754 7886 3754 7882 3755 7882 3745 7870
TIME...MOT...LOC 2309Z 249DEG 24KT 3752 7877 

$$

RAB

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 27, 8:28 PM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania, City of Danville	62 min
Sep 27, 9:25 PM EDT	Special Weather Statement	RNK	Campbell	65 min
Sep 27, 11:16 PM EDT	Special Weather Statement	RNK	Campbell, City of Lynchburg	59 min
Sep 27, 11:22 PM EDT	Severe Thunderstorm Warning	RNK	Campbell, City of Lynchburg	53 min
Sep 27, 11:49 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Campbell	35 min
Sep 28, 12:13 AM EDT	Special Weather Statement	RNK	Buckingham	62 min
Sep 28, 2:22 PM EDT	Special Weather Statement	RNK	City of Danville	53 min
Sep 28, 2:26 PM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania, City of Danville	64 min
Sep 28, 3:08 PM EDT	Special Weather Statement	RNK	Floyd, Montgomery, Pulaski, City of Radford	52 min
Sep 28, 3:22 PM EDT	Areal Flood Advisory	RNK	Halifax, Pittsylvania, City of Danville	3 hr
Sep 28, 3:32 PM EDT	Severe Thunderstorm Warning	RNK	Halifax, Pittsylvania, City of Danville	58 min
Sep 28, 3:35 PM EDT	Severe Thunderstorm Warning	RNK	Craig, Giles, Montgomery, Pulaski, Roanoke, City of Radford	55 min
Sep 28, 4:08 PM EDT	Severe Thunderstorm Warning	RNK	Botetourt, Franklin, Montgomery, Roanoke, City of Roanoke, City of Salem	67 min
Sep 28, 4:15 PM EDT	Flash Flood Watch	RNK	Amherst, Appomattox, Buckingham, Campbell, Charlotte, Halifax and 6 more	26 hr
Sep 28, 4:32 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax, Pittsylvania	58 min
Sep 28, 4:52 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Botetourt, Roanoke	53 min
Sep 28, 5:44 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Appomattox, Bedford, Botetourt, Campbell, City of Lynchburg	61 min
Sep 28, 6:15 PM EDT	Tornado Warning	RNK	Amherst, Bedford, City of Lynchburg	30 min
Sep 28, 7:07 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Buckingham	53 min
Sep 28, 7:34 PM EDT	Special Weather Statement	RNK	Botetourt, Rockbridge, City of Buena Vista, City of Lexington, City of Roanoke	56 min
Sep 28, 7:41 PM EDT	Special Weather Statement	RNK	Henry, Pittsylvania, City of Danville	64 min

Nearby

Tornado Warnings in Virginia, 2016 Every tornado warning in 2016 Tornadoes 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.