Alert archive / West Virginia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 29, NWS Charleston, WV

March 19, 20124 counties in West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Mar 19, 2012, 7:03 PM EDT for 4 counties in West Virginia. It was in force for 27 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: Mar 19, 2012, 7:03 PM EDT (23:03 UTC)
Expired: Mar 19, 2012, 7:30 PM EDT
In force: 27 min
Issued by: NWS Charleston, WV
Area: Storm-based polygon

Counties Doddridge County, WV, Harrison County, WV, Lewis County, WV, Upshur County, WV

The radar

The Charleston,WV radar (KRLX), 148 km from the middle of the area, began a volume at 23:06 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 12:00Z, 11.1 hours before the alert went out and 150 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: 53 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 552 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 120 m²/s²
0-3 km storm-relative helicity: 165 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.

968 
WUUS51 KRLX 192303
SVRRLX
WVC017-033-041-097-192345-
/O.NEW.KRLX.SV.W.0029.120319T2303Z-120319T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
703 PM EDT MON MAR 19 2012

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN DODDRIDGE COUNTY IN WEST VIRGINIA...
  SOUTHWESTERN HARRISON COUNTY IN WEST VIRGINIA...
  NORTHEASTERN LEWIS COUNTY IN WEST VIRGINIA...
  THIS INCLUDES THE CITY OF WESTON...
  NORTH CENTRAL UPSHUR COUNTY IN WEST VIRGINIA...

* UNTIL 745 PM EDT

* AT 657 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR JACKSON MILL...OR 7 MILES NORTHWEST OF
  WESTON...AND MOVING SOUTHEAST AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO JANE
  LEW...LOST CREEK...HORNER...LORENTZ AND HODGESVILLE..

THIS WILL IMPACT THE FOLLOWING INTERSTATE...I-79 BETWEEN MILE MARKERS
96 AND 110.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

VERY HEAVY RAIN WILL ALSO FALL FROM THIS SEVERE THUNDERSTORM...AND
WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES
AND SMALL STREAMS.

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 3889 8031 3914 8065 3926 8054 3913 8022
      3910 8021 3910 8019 3908 8016
TIME...MOT...LOC 2302Z 302DEG 12KT 3913 8050

$$

1 follow-up statement

200 
WWUS51 KRLX 192330
SVSRLX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
730 PM EDT MON MAR 19 2012

WVC017-033-041-097-192340-
/O.CAN.KRLX.SV.W.0029.000000T0000Z-120319T2345Z/
LEWIS WV-HARRISON WV-DODDRIDGE WV-UPSHUR WV-
730 PM EDT MON MAR 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL UPSHUR...
SOUTHEASTERN DODDRIDGE...SOUTHWESTERN HARRISON AND NORTHEASTERN LEWIS
COUNTIES IS CANCELLED...

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 CANCELLED. HOWEVER...GUSTY WINDS AND 
PEA SIZE HAIL ARE STILL POSSIBLE.

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 3889 8031 3914 8065 3926 8054 3913 8022
      3910 8021 3910 8019 3908 8016
TIME...MOT...LOC 2330Z 302DEG 12KT 3908 8040

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 18, 11:06 PM EDT	Special Weather Statement	RLX	Wirt	39 min
Mar 18, 11:23 PM EDT	Severe Thunderstorm Warning	RLX	Jackson, Wood	30 min
Mar 18, 11:44 PM EDT	Special Weather Statement	RLX	Roane	31 min
Mar 19, 12:13 AM EDT	Special Weather Statement	RLX	Braxton	32 min
Mar 19, 1:20 AM EDT	Special Weather Statement	RLX	Pleasants, Tyler	25 min
Mar 19, 2:07 AM EDT	Severe Thunderstorm Warning	RLX	Wood	38 min
Mar 19, 3:18 AM EDT	Special Weather Statement	RLX	Jackson	27 min
Mar 19, 3:28 AM EDT	Special Weather Statement	RLX	Clay	32 min
Mar 19, 4:05 AM EDT	Special Weather Statement	RLX	Roane	25 min
Mar 19, 4:11 AM EDT	Severe Thunderstorm Warning	RLX	Braxton, Calhoun, Clay, Roane	49 min
Mar 19, 4:41 AM EDT	Special Weather Statement	RLX	Calhoun, Gilmer, Wirt	34 min
Mar 19, 5:17 AM EDT	Special Weather Statement	RLX	Jackson, Roane	28 min
Mar 19, 9:42 AM EDT	Special Weather Statement	RLX	Clay, Fayette, Kanawha, Nicholas	2 hr
Mar 19, 4:35 PM EDT	Special Weather Statement	RLX	Wood	25 min
Mar 19, 5:13 PM EDT	Special Weather Statement	RLX	Ritchie	47 min
Mar 19, 5:24 PM EDT	Severe Thunderstorm Warning	RLX	Pleasants, Ritchie, Wood	36 min
Mar 19, 5:59 PM EDT	Special Weather Statement	RLX	Tyler	31 min
Mar 19, 6:29 PM EDT	Special Weather Statement	RLX	Doddridge, Tyler	46 min
Mar 19, 6:54 PM EDT	Special Weather Statement	RLX	Upshur	36 min
Mar 19, 7:43 PM EDT	Special Weather Statement	RLX	Barbour	32 min
Mar 19, 7:45 PM EDT	Severe Thunderstorm Warning	RLX	Barbour, Harrison, Lewis, Randolph, Upshur	45 min

Nearby

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