Alert archive / West Virginia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 49, NWS Charleston, WV

April 4, 201110 counties in West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Apr 4, 2011, 6:32 PM EDT for 10 counties in West Virginia. It was in force for 58 min. 9 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
Apr 4, 2011, 6:32 PM EDT (22:32 UTC)
Expired
Apr 4, 2011, 7:30 PM EDT
In force
58 min
Issued by
NWS Charleston, WV
Area
Storm-based polygon

Counties Boone County, WV, Braxton County, WV, Calhoun County, WV, Clay County, WV, Gilmer County, WV, Jackson County, WV, Kanawha County, WV, Lincoln County, WV, Putnam County, WV, Roane County, WV

The radar

The Charleston,WV radar (KRLX), 55 km from the middle of the area, began a volume at 22:31 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

TimeReportWhereRemark
Apr 4, 6:32 PM EDTTSTM WND DMG2 E Alum Creek, WVLARGE TREE AND POWERLINES DOWN ON ALUM CREEK ROAD
Apr 4, 6:35 PM EDTHAIL 0.75Scott Depot, WV
Apr 4, 6:44 PM EDTTSTM WND DMGCharleston, WVTREE DOWN AT RLX
Apr 4, 6:44 PM EDTTSTM WND DMGSouth Charleston, WVNUMEROUS TREES DOWN IN LITTLE CREEK PARK...FOOT IN DIAMETER
Apr 4, 6:44 PM EDTTSTM WND GST 60Charleston, WV
Apr 4, 6:48 PM EDTTSTM WND DMGCharleston, WVTREE AND POWER LINES DOWN ON OAK RIDGE DRIVE...3-4 FEET IN DIAMETER
Apr 4, 6:50 PM EDTTSTM WND DMG2 Ne Charleston, WVSIX TO TEN TREES UPROOTED...DAMAGE TO METAL ROOF ON BUSINESS CAUSED BY DOWNED TREE
Apr 4, 6:50 PM EDTTSTM WND DMGCharleston, WV
Apr 4, 7:28 PM EDTHAIL 0.5Gassaway, WV

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.

IssuedProductOfficeLasted
Apr 4, 3:05 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 10.5 hours before the alert went out and 220 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, Roanoke, VA at 12:00Z on 2011-04-04Temperature 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, Roanoke, VA at 12:00Z on 2011-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 339 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2071 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
339 m²/s²
0-3 km storm-relative helicity
406 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.

499 
WUUS51 KRLX 042232
SVRRLX
WVC005-007-013-015-021-035-039-043-079-087-042330-
/O.NEW.KRLX.SV.W.0049.110404T2232Z-110404T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
632 PM EDT MON APR 4 2011

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN BOONE COUNTY IN WEST VIRGINIA...
  WESTERN BRAXTON COUNTY IN WEST VIRGINIA...
  CALHOUN COUNTY IN WEST VIRGINIA...
  THIS INCLUDES THE CITY OF GRANTSVILLE...
  CLAY COUNTY IN WEST VIRGINIA...
  THIS INCLUDES THE CITY OF CLAY...
  GILMER COUNTY IN WEST VIRGINIA...
  THIS INCLUDES THE CITY OF GLENVILLE...
  SOUTHERN JACKSON COUNTY IN WEST VIRGINIA...
  KANAWHA COUNTY IN WEST VIRGINIA...
  THIS INCLUDES THE CITIES OF...NITRO...CHARLESTON...
  EASTERN LINCOLN COUNTY IN WEST VIRGINIA...
  PUTNAM COUNTY IN WEST VIRGINIA...
  THIS INCLUDES THE CITY OF WINFIELD...
  ROANE COUNTY IN WEST VIRGINIA...
  THIS INCLUDES THE CITY OF SPENCER...

* UNTIL 730 PM EDT

* AT 625 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS
  IN EXCESS OF 70 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM ELEANOR TO 9 MILES SOUTH OF HURRICANE TO GILL...OR
  ALONG A LINE EXTENDING FROM 7 MILES WEST OF WINFIELD TO HAMLIN TO
  13 MILES SOUTH OF HAMLIN...AND MOVING NORTHEAST AT 65 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  TORNADO...POCA...ST. ALBANS...CROSS LANES...JULIAN...INSTITUTE...
  ALUM CREEK...DUNBAR...KENNA...SOUTH CHARLESTON...SISSONVILLE...
  MARMET...BELLE...ELKVIEW...COAL FORK...PINCH...CLENDENIN...AMMA...
  ARNOLDSBURG...GLEN...WALLBACK...BIG OTTER...CEDAR CREEK STATE PARK
  AND GASSAWAY.

THIS WILL IMPACT THE FOLLOWING INTERSTATES...I-64 BETWEEN MILE
MARKERS 33 AND 57 IN WEST VIRGINIA...I-77 BETWEEN MILE MARKERS 96 AND
130 IN WEST VIRGINIA...I-79 BETWEEN MILE MARKERS 1 AND 55...THE WEST
VIRGINIA TURNPIKE BETWEEN MILE MARKERS 88 AND 95.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT MONDAY
EVENING FOR CENTRAL KENTUCKY AND SOUTHEAST OHIO AND CENTRAL VIRGINIA
AND CENTRAL WEST VIRGINIA.

&&

LAT...LON 3900 8071 3875 8073 3854 8082 3850 8088
      3849 8084 3845 8086 3801 8220 3830 8207
      3862 8200 3868 8178 3870 8179 3908 8073
TIME...MOT...LOC 2232Z 247DEG 55KT 3858 8188 3835 8194
          3814 8203

$$

12
1 follow-up statement
525 
WWUS51 KRLX 042257
SVSRLX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
657 PM EDT MON APR 4 2011

WVC043-079-042307-
/O.CAN.KRLX.SV.W.0049.000000T0000Z-110404T2330Z/
PUTNAM WV-LINCOLN WV-
657 PM EDT MON APR 4 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN LINCOLN AND PUTNAM
COUNTIES IS CANCELLED...

THIS WILL IMPACT THE FOLLOWING INTERSTATE...I-64 BETWEEN MILE MARKERS
33 AND 45 IN WEST VIRGINIA.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT MONDAY
EVENING FOR CENTRAL KENTUCKY AND SOUTHEAST OHIO AND CENTRAL VIRGINIA
AND CENTRAL WEST VIRGINIA.

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 3908 8073 3900 8071 3875 8073 3854 8082
      3850 8088 3849 8084 3845 8086 3816 8175
      3875 8164
TIME...MOT...LOC 2257Z 245DEG 70KT 3889 8122 3854 8132
          3828 8144

$$

WVC005-007-013-015-021-035-039-087-042330-
/O.CON.KRLX.SV.W.0049.000000T0000Z-110404T2330Z/
KANAWHA WV-JACKSON WV-GILMER WV-CLAY WV-CALHOUN WV-BRAXTON WV-
BOONE WV-ROANE WV-
657 PM EDT MON APR 4 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR ROANE...NORTH CENTRAL BOONE...WESTERN BRAXTON...CALHOUN...CLAY...
GILMER...SOUTHEASTERN JACKSON AND NORTHERN KANAWHA COUNTIES IN WEST
VIRGINIA...

AT 654 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM SPENCER TO CLENDENIN TO MARMET...OR ALONG
A LINE EXTENDING FROM SPENCER TO 17 MILES WEST OF CLAY TO 10 MILES
SOUTHEAST OF CHARLESTON...MOVING NORTHEAST AT 80 MPH.

THESE STORMS HAVE HAD A HISTORY OF DAMAGING WINDS.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO AMMA...
LEFT HAND...TARIFF...MOUNT ZION...GRANTSVILLE...ARNOLDSBURG...
PROCIOUS...MILLSTONE...GLEN...ORMA...WALLBACK...CHLOE...STUMPTOWN...
TANNER...NICUT...BIG OTTER...NEBO...SHOCK...NORMANTOWN...BICKMORE...
IVYDALE...ROSEDALE...SERVIA...CEDAR CREEK STATE PARK...COXS MILLS...
GLENVILLE...WILSIE...HARRISON...CEDARVILLE...TROY...STRANGE CREEK...
FRAMETOWN...BALDWIN...SAND FORK...LINN...STOUTS MILLS...EXCHANGE...
GASSAWAY AND WIDEN

THIS WILL IMPACT THE FOLLOWING INTERSTATES...I-64 BETWEEN MILE
MARKERS 54 AND 57 IN WEST VIRGINIA...I-77 BETWEEN MILE MARKERS 96 AND
128 IN WEST VIRGINIA...I-79 BETWEEN MILE MARKERS 1 AND 55...THE WEST
VIRGINIA TURNPIKE BETWEEN MILE MARKERS 89 AND 95.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT MONDAY
EVENING FOR CENTRAL KENTUCKY AND SOUTHEAST OHIO AND CENTRAL VIRGINIA
AND CENTRAL WEST VIRGINIA.

&&

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 3908 8073 3900 8071 3875 8073 3854 8082
      3850 8088 3849 8084 3845 8086 3816 8175
      3875 8164
TIME...MOT...LOC 2257Z 245DEG 70KT 3889 8122 3854 8132
          3828 8144

$$

12

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 4, 3:43 PM EDTSpecial Weather StatementRLXCabell, Calhoun, Doddridge, Jackson, Mason, Pleasants and 7 more47 min
Apr 4, 3:55 PM EDTSevere Thunderstorm WarningRLXBoone, Fayette, Kanawha, Logan, Mingo, Raleigh and 1 more50 min
Apr 4, 4:03 PM EDTSevere Thunderstorm WarningRLXBoone, Clay, Kanawha, Lincoln, Logan, Mingo and 1 more42 min
Apr 4, 4:33 PM EDTSpecial Weather StatementRLXMason27 min
Apr 4, 5:22 PM EDTSevere Thunderstorm WarningRLXCabell, Lincoln, Mason, Putnam, Wayne38 min
Apr 4, 6:01 PM EDTSevere Thunderstorm WarningRLXCabell, Lincoln, Mason, Putnam, Wayne44 min
Apr 4, 6:15 PM EDTSpecial Weather StatementRLXGilmer30 min
Apr 4, 6:20 PM EDTSpecial Weather StatementRLXJackson, Wirt25 min
Apr 4, 7:20 PM EDTSevere Thunderstorm WarningRLXBarbour, Braxton, Clay, Gilmer, Harrison, Lewis and 5 more55 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.