Alert archive / West Virginia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 71, NWS Charleston, WV

April 8, 20114 counties in West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Apr 8, 2011, 9:03 PM EDT for 4 counties in West Virginia. It was in force for 42 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: Apr 8, 2011, 9:03 PM EDT (01:03 UTC)
Expired: Apr 8, 2011, 9:45 PM EDT
In force: 42 min
Issued by: NWS Charleston, WV
Area: Storm-based polygon

Counties Logan County, WV, McDowell County, WV, Mingo County, WV, Wyoming County, WV

The radar

The Charleston,WV radar (KRLX), 75 km from the middle of the area, began a volume at 01:07 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
Apr 8, 9:09 PM EDT	HAIL 1	3 Wnw Oceana, WV	BETWEEN LYNCO AND OCEANA
Apr 8, 9:31 PM EDT	HAIL 0.88	Pineville, 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.

Issued	Product	Office	Lasted
Apr 8, 2:53 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 1.1 hours before the alert went out and 198 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: 6 J/kg
Mixed-layer CIN: -189 J/kg
Mixed-layer LCL: 870 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 236 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.

531 
WUUS51 KRLX 090103
SVRRLX
WVC045-047-059-109-090145-
/O.NEW.KRLX.SV.W.0071.110409T0103Z-110409T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
903 PM EDT FRI APR 8 2011

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN LOGAN COUNTY IN WEST VIRGINIA...
  NORTH CENTRAL MCDOWELL COUNTY IN WEST VIRGINIA...
  SOUTHEASTERN MINGO COUNTY IN WEST VIRGINIA...
  WESTERN WYOMING COUNTY IN WEST VIRGINIA...
  THIS INCLUDES THE CITY OF PINEVILLE...

* UNTIL 945 PM EDT

* AT 900 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR MALLORY...OR 15 MILES NORTHWEST OF
  PINEVILLE...AND MOVING SOUTHEAST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  HANOVER AND OCEANA.

.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 1100 PM EDT
FRIDAY EVENING FOR CENTRAL VIRGINIA AND CENTRAL WEST VIRGINIA.

&&

LAT...LON 3758 8145 3739 8165 3765 8194 3778 8183
      3782 8174
TIME...MOT...LOC 0104Z 310DEG 41KT 3769 8170

$$

TAX

1 follow-up statement

710 
WWUS51 KRLX 090140
SVSRLX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
940 PM EDT FRI APR 8 2011

WVC045-047-059-109-090150-
/O.EXP.KRLX.SV.W.0071.000000T0000Z-110409T0145Z/
MINGO WV-MCDOWELL WV-LOGAN WV-WYOMING WV-
940 PM EDT FRI APR 8 2011

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN WYOMING...SOUTHEASTERN
LOGAN...NORTH CENTRAL MCDOWELL AND SOUTHEASTERN MINGO COUNTIES WILL
EXPIRE AT 945 PM EDT...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE STORM WHICH
PROMPTED THE SEVERE THUNDERSTORM WARNING HAS MOVED OUT OF THE WARNED
AREA. THEREFORE...THE WARNING HAS BEEN ALLOWED TO EXPIRE. OTHER
STORMS IN THE AREA COULD PRODUCE GUSTY WINDS AND PEA SIZE HAIL.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
FRIDAY EVENING FOR 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 3758 8145 3739 8165 3765 8194 3778 8183
      3782 8174
TIME...MOT...LOC 0140Z 310DEG 41KT 3742 8131

$$

TAX

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 8:05 PM EDT	Severe Thunderstorm Warning	RLX	Logan, McDowell, Mingo, Wyoming	55 min
Apr 8, 8:10 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Fayette, Kanawha, Raleigh	35 min
Apr 8, 8:24 PM EDT	Severe Thunderstorm Warning	RLX	Lincoln, Logan, Mingo, Wayne	36 min
Apr 8, 8:31 PM EDT	Severe Thunderstorm Warning	RLX	Wayne	44 min
Apr 8, 8:47 PM EDT	Severe Thunderstorm Warning	RLX	Logan, Mingo	25 min
Apr 8, 8:54 PM EDT	Severe Thunderstorm Warning	RLX	McDowell, Wyoming	51 min
Apr 8, 10:07 PM EDT	Special Weather Statement	RLX	McDowell, Mingo, Wyoming	68 min
Apr 9, 1:27 PM EDT	Severe Thunderstorm Warning	RLX	Wayne	48 min
Apr 9, 2:11 PM EDT	Severe Thunderstorm Warning	RLX	Cabell, Lincoln, Logan, Wayne	64 min
Apr 9, 2:18 PM EDT	Severe Thunderstorm Warning	RLX	McDowell	57 min
Apr 9, 2:21 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Logan, Mingo	54 min
Apr 9, 2:43 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Logan, McDowell, Mingo, Raleigh, Wyoming	62 min
Apr 9, 3:15 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Kanawha, Lincoln, Logan	29 min
Apr 9, 3:18 PM EDT	Special Weather Statement	RLX	Boone, Fayette, Kanawha, Lincoln, Logan, McDowell and 3 more	27 min
Apr 9, 3:40 PM EDT	Severe Thunderstorm Warning	RLX	McDowell	65 min
Apr 9, 3:49 PM EDT	Special Weather Statement	RLX	Boone, Fayette, Kanawha, Lincoln, Logan, Mingo and 3 more	86 min
Apr 9, 4:08 PM EDT	Special Weather Statement	RLX	Raleigh, Wyoming	52 min
Apr 9, 4:18 PM EDT	Flash Flood Warning	RLX	Boone, Lincoln, Logan	4 hr
Apr 9, 4:26 PM EDT	Flash Flood Warning	RLX	Wyoming	2 hr
Apr 9, 4:30 PM EDT	Severe Thunderstorm Warning	RLX	McDowell, Raleigh, Wyoming	30 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2011 Every 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.