Alert archive / Virginia / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 13, NWS Blacksburg, VA

May 11, 2015Amherst County, Rockbridge County, City of Buena Vista, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at May 11, 2015, 5:32 PM EDT for Amherst County, Rockbridge County, City of Buena Vista, Virginia. It was in force for 43 min. 2 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: May 11, 2015, 5:32 PM EDT (21:32 UTC)
Expired: May 11, 2015, 6:15 PM EDT
In force: 43 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Amherst County, VA, City of Buena Vista, VA, Rockbridge County, VA

The radar

The Roanoke radar (KFCX), 105 km from the middle of the area, began a volume at 21:34 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
May 11, 5:50 PM EDT	TSTM WND DMG	5 Wsw Buena Vista City, VA	TREE DOWN ON BUNKER MILL HILL ROAD
May 11, 5:55 PM EDT	TSTM WND DMG	4 Sw Buena Vista City, VA	ONE TREE DOWN AT THE INTERSECTION OF FORGE ROAD AND ROLLING MEADOW DRIVE

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 12:00Z, 9.5 hours before the alert went out and 179 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: 953 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -10 m²/s²
0-3 km storm-relative helicity: -15 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.

986 
WUUS51 KRNK 112132
SVRRNK
VAC009-163-530-112215-
/O.NEW.KRNK.SV.W.0013.150511T2132Z-150511T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
532 PM EDT MON MAY 11 2015

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  THE CITY OF BUENA VISTA IN WEST CENTRAL VIRGINIA...
  NORTHWESTERN AMHERST COUNTY IN CENTRAL VIRGINIA...
  SOUTH CENTRAL ROCKBRIDGE COUNTY IN WEST CENTRAL VIRGINIA...

* UNTIL 615 PM EDT

* AT 532 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BUENA VISTA
  CITY...MOVING SOUTHEAST AT 10 MPH.

  HAZARD...QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

* LOCATIONS IMPACTED INCLUDE...
  LEXINGTON...
  BUENA VISTA...
  GLASGOW...
  BUENA VISTA CITY...
  AND NAOLA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL...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 THIS STORM...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 3764 7911 3751 7931 3751 7934 3753 7935
      3755 7937 3759 7938 3761 7941 3760 7943
      3762 7944 3771 7955 3777 7946 3777 7945
      3780 7941
TIME...MOT...LOC 2132Z 317DEG 8KT 3772 7944 

HAIL...1.00IN
WIND...<50MPH
 
$$

RAB

2 follow-up statements

579 
WWUS51 KRNK 112202
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
602 PM EDT MON MAY 11 2015

VAC009-163-530-112215-
/O.CON.KRNK.SV.W.0013.000000T0000Z-150511T2215Z/
CITY OF BUENA VISTA VA-AMHERST VA-ROCKBRIDGE VA-
602 PM EDT MON MAY 11 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR
NORTHWESTERN AMHERST AND SOUTH CENTRAL ROCKBRIDGE COUNTIES AND THE
CITY OF BUENA VISTA...

AT 601 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER GRASSY
CREEK...AND IS NEARLY STATIONARY.

HAZARD...QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

LOCATIONS IMPACTED INCLUDE...
LEXINGTON...
BUENA VISTA...
GLASGOW...
BUENA VISTA CITY...
AND NAOLA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL. 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 THIS STORM...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 3764 7911 3751 7931 3751 7934 3753 7935
      3755 7937 3759 7938 3761 7941 3760 7943
      3762 7944 3771 7955 3777 7946 3777 7945
      3780 7941
TIME...MOT...LOC 2201Z 317DEG 8KT 3659 8142 

HAIL...1.00IN
WIND...<50MPH
 
$$

RAB

219 
WWUS51 KRNK 112213
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
613 PM EDT MON MAY 11 2015

VAC009-163-530-112221-
/O.EXP.KRNK.SV.W.0013.000000T0000Z-150511T2215Z/
CITY OF BUENA VISTA VA-AMHERST VA-ROCKBRIDGE VA-
613 PM EDT MON MAY 11 2015

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN AMHERST AND SOUTH 
CENTRAL ROCKBRIDGE COUNTIES AND THE CITY OF BUENA VISTA WILL EXPIRE 
AT 615 PM EDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER SMALL HAIL 
IS STILL POSSIBLE WITH THIS THUNDERSTORM ACROSS EASTERN ROCKBRIDGE 
AND WESTERN AMHERST COUNTIES.

BE ADVISED THAT...WHILE THIS WARNING HAS ENDED...A SEVERE 
THUNDERSTORM WARNING IS IN EFFECT FOR NORTH CENTRAL AND EASTERN 
AMHERST COUNTY UNTIL TIME 715 PM EDT.

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 3764 7911 3751 7931 3751 7934 3753 7935
      3755 7937 3759 7938 3761 7941 3760 7943
      3762 7944 3771 7955 3777 7946 3777 7945
      3780 7941
TIME...MOT...LOC 2209Z 317DEG 8KT 3659 8142 

$$

RAB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 1:22 PM EDT	Special Weather Statement	RNK	Bland	23 min
May 11, 2:08 PM EDT	Special Weather Statement	RNK	Carroll	52 min
May 11, 2:50 PM EDT	Special Weather Statement	RNK	Grayson, City of Galax	55 min
May 11, 3:06 PM EDT	Special Weather Statement	RNK	Patrick	54 min
May 11, 4:06 PM EDT	Special Weather Statement	RNK	Floyd, Henry	54 min
May 11, 4:56 PM EDT	Special Weather Statement	RNK	Rockbridge	49 min
May 11, 5:17 PM EDT	Special Weather Statement	RNK	City of Buena Vista, City of Lexington	58 min
May 11, 5:26 PM EDT	Areal Flood Advisory	RNK	Grayson	2 hr
May 11, 6:00 PM EDT	Flash Flood Warning	RNK	Grayson	3 hr
May 11, 6:09 PM EDT	Severe Thunderstorm Warning	RNK	Amherst	22 min
May 11, 6:19 PM EDT	Special Weather Statement	RNK	Buckingham	56 min
May 11, 6:27 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, City of Lynchburg	63 min
May 11, 7:10 PM EDT	Special Weather Statement	RNK	City of Buena Vista	65 min
May 11, 7:12 PM EDT	Special Weather Statement	RNK	Carroll	63 min
May 11, 7:29 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, City of Lynchburg	61 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2015 Every severe thunderstorm warning in 2015

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.