Alert archive / West Virginia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 239, NWS Blacksburg, VA

July 5, 2012Monroe County, Summers County, West Virginia; Giles County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 5, 2012, 1:44 PM EDT for Monroe County, Summers County, West Virginia; Giles County, Virginia. It was in force for 44 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 5, 2012, 1:44 PM EDT (17:44 UTC)
Expired: Jul 5, 2012, 2:28 PM EDT
In force: 44 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon

Counties Giles County, VA, Monroe County, WV, Summers County, WV

The radar

The Roanoke radar (KFCX), 72 km from the middle of the area, began a volume at 17:44 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 5, 1:44 PM EDT	TSTM WND DMG	2 Ese Hinton, WV	TREE FELL ON POWER LINES ALONG TERRACE STREET
Jul 5, 2:09 PM EDT	TSTM WND DMG	5 Ese Narrows, VA	ONE TREE DOWN ON ROUTE 100 NEAR WILBURN VALLEY
Jul 5, 2:35 PM EDT	TSTM WND DMG	5 Ese Narrows, VA	ONE TREE DOWN ON ROUTE 100 NEAR WILBURN VALLEY

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
Jul 5, 11:37 AM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 5.7 hours before the alert went out and 120 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: 932 J/kg
Mixed-layer CIN: -109 J/kg
Mixed-layer LCL: 1190 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 66 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

313 
WUUS51 KRNK 051744
SVRRNK
VAC071-WVC063-089-051915-
/O.NEW.KRNK.SV.W.0239.120705T1744Z-120705T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
144 PM EDT THU JUL 5 2012

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GILES COUNTY IN SOUTHWEST VIRGINIA
  WESTERN MONROE COUNTY IN SOUTHEAST WEST VIRGINIA
  SUMMERS COUNTY IN SOUTHEAST WEST VIRGINIA

* UNTIL 315 PM EDT.

* AT 139 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  PIPESTEM...AND MOVING SOUTHEAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  INDIAN MILLS...
  BOZOO...
  PETERSTOWN...
  PEARISBURG...
  BANE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF QUARTER OR
LARGER SIZED HAIL...AS WELL AS WIND DAMAGE...INCLUDING TREES OR LARGE
LIMBS DOWNED BY CALLING THE NATIONAL WEATHER SERVICE TOLL FREE AT...
1...8 6 6...2 1 5...4 3 2 4.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
THURSDAY EVENING FOR NORTHWESTERN NORTH CAROLINA AND SOUTHWESTERN
VIRGINIA AND SOUTHEAST WEST VIRGINIA.

&&

LAT...LON 3780 8071 3752 8046 3743 8045 3741 8048
      3731 8044 3715 8086 3719 8087 3718 8089
      3728 8101 3735 8085 3738 8088 3743 8086
      3759 8110 3772 8098 3770 8090 3774 8093
      3777 8090 3780 8092 3787 8080
TIME...MOT...LOC 1744Z 330DEG 15KT 3753 8088

$$

RCS

2 follow-up statements

266 
WWUS51 KRNK 051810
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
210 PM EDT THU JUL 5 2012

VAC071-WVC063-089-051915-
/O.CON.KRNK.SV.W.0239.000000T0000Z-120705T1915Z/
GILES VA-MONROE WV-SUMMERS WV-
210 PM EDT THU JUL 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR GILES...WESTERN MONROE AND SUMMERS COUNTIES...

AT 209 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER 
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS 
WERE LOCATED ALONG A LINE EXTENDING FROM BALLENGEE TO PEARISBURG TO 
CHAPEL...OR ALONG A LINE EXTENDING FROM 10 MILES SOUTHEAST OF HINTON 
TO PEARISBURG TO 8 MILES SOUTHWEST OF NARROWS...MOVING SOUTH AT 20 
MPH.

LOCATIONS IMPACTED INCLUDE...
  RED SULPHUR SPRING...
  WHITE GATE...
  PEARISBURG...
  POPLAR HILL...
  LINDSIDE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE ACROSS 
SOUTHERN WEST VIRGINIA. THIS IS AN EXTREMELY DANGEROUS SITUATION. 
SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM 
WINDOWS!

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
THURSDAY EVENING FOR NORTHWESTERN NORTH CAROLINA AND SOUTHWESTERN
VIRGINIA AND SOUTHEAST WEST VIRGINIA.

&&

LAT...LON 3780 8071 3752 8046 3743 8045 3741 8048
      3731 8044 3715 8086 3719 8087 3718 8089
      3728 8101 3735 8085 3738 8088 3743 8086
      3759 8110 3772 8098 3770 8090 3774 8093
      3777 8090 3780 8092 3787 8080
TIME...MOT...LOC 1810Z 346DEG 17KT 3759 8073 3732 8077
          3724 8090

$$

RCS

748 
WWUS51 KRNK 051828
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
228 PM EDT THU JUL 5 2012

VAC071-WVC063-089-051838-
/O.CAN.KRNK.SV.W.0239.000000T0000Z-120705T1915Z/
GILES VA-MONROE WV-SUMMERS WV-
228 PM EDT THU JUL 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR GILES...WESTERN MONROE AND
SUMMERS COUNTIES IS CANCELLED...

THE SEVERE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED AND 
OVER THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED.

TO REPORT SEVERE WEATHER...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN BLACKSBURG AT...1 8 6 6...2 1 5...4 3 2 4.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
THURSDAY EVENING FOR NORTHWESTERN NORTH CAROLINA AND SOUTHWESTERN
VIRGINIA AND SOUTHEAST WEST VIRGINIA.

LAT...LON 3780 8071 3752 8046 3743 8045 3741 8048
      3731 8044 3715 8086 3719 8087 3718 8089
      3728 8101 3735 8085 3738 8088 3743 8086
      3759 8110 3772 8098 3770 8090 3774 8093
      3777 8090 3780 8092 3787 8080
TIME...MOT...LOC 1828Z 346DEG 17KT 3751 8070 3724 8074
          3716 8087

$$

RCS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 8:24 AM EDT	Special Weather Statement	RNK	Summers	36 min
Jul 5, 12:58 PM EDT	Severe Thunderstorm Warning	RNK	Mercer	92 min
Jul 5, 3:48 AM EDT	Heat Advisory	RNK	Appomattox, Buckingham, Campbell, Charlotte, Halifax, Pittsylvania and 2 more	16 hr
Jul 5, 9:56 AM EDT	Special Weather Statement	RNK	Giles	34 min
Jul 5, 10:28 AM EDT	Special Weather Statement	RNK	Bland, Pulaski	47 min
Jul 5, 11:04 AM EDT	Special Weather Statement	RNK	Bland, Wythe	56 min
Jul 5, 11:12 AM EDT	Severe Thunderstorm Warning	RNK	Bland, Wythe	48 min
Jul 5, 11:48 AM EDT	Severe Thunderstorm Warning	RNK	Carroll, Grayson, Wythe, City of Galax	51 min
Jul 5, 1:38 PM EDT	Special Weather Statement	RNK	Smyth, Wythe	52 min
Jul 5, 1:57 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Grayson, Smyth, Wythe	93 min
Jul 5, 2:26 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Tazewell	34 min
Jul 5, 3:02 PM EDT	Special Weather Statement	RNK	Botetourt	28 min
Jul 5, 3:19 PM EDT	Special Weather Statement	RNK	City of Roanoke	56 min
Jul 5, 4:00 PM EDT	Special Weather Statement	RNK	City of Roanoke	60 min
Jul 5, 4:02 PM EDT	Special Weather Statement	RNK	Pittsylvania	58 min
Jul 5, 4:20 PM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania	55 min
Jul 5, 4:27 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Franklin, Roanoke, City of Roanoke	35 min
Jul 5, 4:33 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox	31 min
Jul 5, 4:34 PM EDT	Special Weather Statement	RNK	Franklin	41 min
Jul 5, 4:46 PM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania	36 min
Jul 5, 5:01 PM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania	59 min
Jul 5, 5:36 PM EDT	Special Weather Statement	RNK	City of Danville	54 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2012 Severe Thunderstorm Warnings in Virginia, 2012 Every severe thunderstorm warning in 2012

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.