Alert archive / West Virginia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 1, NWS Charleston, WV

February 24, 20127 counties in West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Feb 24, 2012, 12:44 AM EST for 7 counties in West Virginia. It was in force for 46 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
Feb 24, 2012, 12:44 AM EST (05:44 UTC)
Expired
Feb 24, 2012, 1:30 AM EST
In force
46 min
Issued by
NWS Charleston, WV
Area
Storm-based polygon

Counties Boone County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, Mingo County, WV, Raleigh County, WV, Wayne County, WV

The radar

The Charleston,WV radar (KRLX), 53 km from the middle of the area, began a volume at 05:44 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 5.7 hours before the alert went out and 227 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, Cncnati-Daytn, OH at 00:00Z on 2012-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Cncnati-Daytn, OH at 00:00Z on 2012-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 556 square meters per square second.1939587897117136156Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1094 m above ground
0-6 km bulk shear
86 kt
0-1 km storm-relative helicity
556 m²/s²
0-3 km storm-relative helicity
1028 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.

759 
WUUS51 KRLX 240544
SVRRLX
WVC005-039-043-045-059-081-099-240630-
/O.NEW.KRLX.SV.W.0001.120224T0544Z-120224T0630Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
1244 AM EST FRI FEB 24 2012

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL BOONE COUNTY IN WEST VIRGINIA...
  THIS INCLUDES THE CITY OF MADISON...
  SOUTH CENTRAL KANAWHA COUNTY IN WEST VIRGINIA...
  SOUTHWESTERN LINCOLN COUNTY IN WEST VIRGINIA...
  NORTHERN LOGAN COUNTY IN WEST VIRGINIA...
  THIS INCLUDES THE CITY OF LOGAN...
  NORTHWESTERN MINGO COUNTY IN WEST VIRGINIA...
  NORTHWESTERN RALEIGH COUNTY IN WEST VIRGINIA...
  SOUTH CENTRAL WAYNE COUNTY IN WEST VIRGINIA...

* UNTIL 130 AM EST

* AT 1239 AM EST...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 13
  MILES WEST OF HOLDEN...OR 13 MILES EAST OF INEZ...AND MOVING EAST
  AT 60 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CHIEF
  LOGAN STATE PARK...CHAPMANVILLE...VAN...WHARTON AND BALD KNOB.



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 3794 8239 3814 8145 3786 8138 3777 8234
      3780 8238
TIME...MOT...LOC 0544Z 258DEG 54KT 3788 8221

$$

26
1 follow-up statement
896 
WWUS51 KRLX 240622
SVSRLX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
122 AM EST FRI FEB 24 2012

WVC005-039-043-045-059-081-099-240632-
/O.EXP.KRLX.SV.W.0001.000000T0000Z-120224T0630Z/
RALEIGH WV-MINGO WV-LOGAN WV-LINCOLN WV-KANAWHA WV-BOONE WV-WAYNE WV-
122 AM EST FRI FEB 24 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL WAYNE...SOUTHERN
BOONE...SOUTH CENTRAL KANAWHA...SOUTHWESTERN LINCOLN...NORTHERN
LOGAN...NORTHWESTERN MINGO AND NORTHWESTERN RALEIGH COUNTIES WILL
EXPIRE AT 130 AM EST...

THE STORM THAT PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS
AND NO LONGER POSES A SEVERE WEATHER THREAT...THUS THE SEVERE
THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE. HOWEVER OTHER WEAKER
THUNDERSTORMS IN THE AREA MAY PRODUCE GUSTY WINDS AND PEA SIZE HAIL.

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 3794 8239 3814 8145 3786 8138 3777 8234
      3780 8238
TIME...MOT...LOC 0622Z 258DEG 54KT 3798 8154

$$

26

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 23, 8:52 PM ESTSpecial Weather StatementRLXCabell, Kanawha, Lincoln, Wayne53 min
Feb 23, 11:52 PM ESTSpecial Weather StatementRLXWayne38 min
Feb 24, 12:24 AM ESTSpecial Weather StatementRLXBoone, Logan51 min
Feb 24, 2:38 AM ESTSpecial Weather StatementRLXLincoln, Wayne37 min
Feb 24, 4:18 AM ESTSpecial Weather StatementRLXMcDowell27 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2012Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.