Alert archive / West Virginia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 252, NWS Charleston, WV

September 14, 20115 counties in West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Sep 14, 2011, 11:58 PM EDT for 5 counties in West Virginia. It was in force for 32 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
Sep 14, 2011, 11:58 PM EDT (03:58 UTC)
Expired
Sep 15, 2011, 12:30 AM EDT
In force
32 min
Issued by
NWS Charleston, WV
Area
Storm-based polygon

Counties Calhoun County, WV, Doddridge County, WV, Gilmer County, WV, Ritchie County, WV, Wirt County, WV

The radar

The Charleston,WV radar (KRLX), 112 km from the middle of the area, began a volume at 03:59 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

Pittsburgh, PA (KPIT), launched 00:00Z, 4.0 hours before the alert went out and 163 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-pSkew-T log-p diagram, Pittsburgh, PA at 00:00Z on 2011-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 224 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 00:00Z on 2011-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
224 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
888 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
80 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.

600 
WUUS51 KRLX 150358
SVRRLX
WVC013-017-021-085-105-150430-
/O.NEW.KRLX.SV.W.0252.110915T0358Z-110915T0430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
1158 PM EDT WED SEP 14 2011

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN CALHOUN COUNTY IN WEST VIRGINIA...
  SOUTHWESTERN DODDRIDGE COUNTY IN WEST VIRGINIA...
  NORTHERN GILMER COUNTY IN WEST VIRGINIA...
  SOUTHERN RITCHIE COUNTY IN WEST VIRGINIA...
  EASTERN WIRT COUNTY IN WEST VIRGINIA...

* UNTIL 1230 AM EDT

* AT 1154 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
  MUNDAY...OR 9 MILES EAST OF ELIZABETH...AND MOVING EAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MACFARLAN...BROHARD...SMITHVILLE...BIG SPRINGS...BURNT HOUSE...
  TANNER...BEREA...NEWBERNE...AUBURN...COXS MILLS...BALDWIN...TROY...
  LINN...LEOPOLD AND GROVE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING QUARTER SIZED HAIL. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3921 8074 3910 8072 3909 8073 3895 8070
      3891 8129 3910 8136
TIME...MOT...LOC 0357Z 259DEG 33KT 3902 8121

$$

19
1 follow-up statement
843 
WWUS51 KRLX 150421
SVSRLX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
1221 AM EDT THU SEP 15 2011

WVC105-150431-
/O.CAN.KRLX.SV.W.0252.000000T0000Z-110915T0430Z/
WIRT WV-
1221 AM EDT THU SEP 15 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WIRT COUNTY IS
CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS MOVED OUT OF WIRT 
COUNTY...SO THE WARNING HAS BEEN CANCELLED. PLEASE REPORT HAIL OR 
STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL 
FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3910 8072 3907 8073 3895 8070 3893 8101
      3897 8111 3914 8114 3921 8074
TIME...MOT...LOC 0421Z 259DEG 33KT 3906 8093

$$

WVC013-017-021-085-150430-
/O.CON.KRLX.SV.W.0252.000000T0000Z-110915T0430Z/
GILMER WV-DODDRIDGE WV-CALHOUN WV-RITCHIE WV-
1221 AM EDT THU SEP 15 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM EDT
FOR SOUTHEASTERN RITCHIE...NORTHEASTERN CALHOUN...SOUTHWESTERN
DODDRIDGE AND NORTHERN GILMER COUNTIES...

AT 1213 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR BURNT HOUSE...OR 9 MILES NORTHEAST OF GRANTSVILLE...
MOVING EAST AT 40 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BEREA...NEWBERNE...AUBURN...COXS MILLS...BALDWIN...TROY...LINN...
LEOPOLD AND GROVE

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3910 8072 3907 8073 3895 8070 3893 8101
      3897 8111 3914 8114 3921 8074
TIME...MOT...LOC 0421Z 259DEG 33KT 3906 8093

$$

19

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 14, 10:01 PM EDTSpecial Weather StatementRLXMason59 min
Sep 14, 11:24 PM EDTSevere Thunderstorm WarningRLXCalhoun, Jackson, Ritchie, Wirt36 min
Sep 15, 12:14 AM EDTSpecial Weather StatementRLXBarbour31 min
Sep 15, 12:19 AM EDTSpecial Weather StatementRLXDoddridge, Harrison26 min
Sep 15, 12:26 AM EDTSevere Thunderstorm WarningRLXBarbour, Doddridge, Harrison, Taylor, Tyler49 min
Sep 15, 12:32 AM EDTSevere Thunderstorm WarningRLXGilmer, Harrison, Lewis, Ritchie, Upshur43 min
Sep 15, 1:10 AM EDTSevere Thunderstorm WarningRLXBarbour, Harrison, Lewis, Randolph, Upshur50 min
Sep 15, 1:12 AM EDTSevere Thunderstorm WarningRLXBarbour, Harrison, Taylor33 min
Sep 15, 1:43 AM EDTSevere Thunderstorm WarningRLXBarbour, Taylor17 min
Sep 15, 3:02 AM EDTSevere Thunderstorm WarningRLXClay, Kanawha, Nicholas43 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2011Every severe thunderstorm warning in 2011

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.