Alert archive / West Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 96, NWS Charleston, WV

July 12, 2021Cabell County, Mason County, Putnam County, West Virginia; Gallia County, Ohio

NWS Charleston, WV issued this severe thunderstorm warning at Jul 12, 2021, 8:40 PM EDT for Cabell County, Mason County, Putnam County, West Virginia; Gallia County, Ohio. It was in force for 35 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: Jul 12, 2021, 8:40 PM EDT (00:40 UTC)
Expired: Jul 12, 2021, 9:15 PM EDT
In force: 35 min
Issued by: NWS Charleston, WV
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Gallia County, OH, Cabell County, WV, Mason County, WV, Putnam County, WV

The radar

The Charleston,WV radar (KRLX), 57 km from the middle of the area, began a volume at 00:41 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
Jul 12, 8:48 PM EDT	TSTM WND DMG	2 E Mercers Bottom, WV	TREE DOWN ON POWER LINE.
Jul 12, 9:13 PM EDT	TSTM WND DMG	1 E Point Pleasant, WV	ONE TREE DOWN ALONG JERICHO ROAD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.7 hours before the alert went out and 168 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: 303 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1104 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

As transmitted.

930 
WUUS51 KRLX 130040
SVRRLX
OHC053-WVC011-053-079-130115-
/O.NEW.KRLX.SV.W.0096.210713T0040Z-210713T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston WV
840 PM EDT Mon Jul 12 2021

The National Weather Service in Charleston West Virginia has issued a

* Severe Thunderstorm Warning for...
  Southeastern Gallia County in southeastern Ohio...
  Mason County in western West Virginia...
  Northeastern Cabell County in central West Virginia...
  Northwestern Putnam County in western West Virginia...

* Until 915 PM EDT.

* At 840 PM EDT, a severe thunderstorm was located near Buffalo, or
  12 miles northwest of Winfield, moving north at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Point Pleasant, Gallipolis, Buffalo, Henderson, Leon, Grimms
  Landing, Gallopolis Ferry, Southside, Fraziers Bottom and Ashton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

Please report severe weather to the National Weather Service by
calling toll free, 800 401 9535, when you can do so safely.

You may also report severe weather by posting your report to the
Charleston West Virginia National Weather Service Facebook Page, or
by using the Twitter Hashtag, NWSRLX.

&&

LAT...LON 3888 8222 3885 8189 3884 8188 3852 8198
      3854 8221
TIME...MOT...LOC 0040Z 186DEG 21KT 3860 8209 

HAIL...1.00IN
WIND...60MPH
 
$$

MEK

2 follow-up statements

315 
WWUS51 KRLX 130058
SVSRLX

Severe Weather Statement
National Weather Service Charleston WV
858 PM EDT Mon Jul 12 2021

WVC011-079-130107-
/O.CAN.KRLX.SV.W.0096.000000T0000Z-210713T0115Z/
Cabell WV-Putnam WV-
858 PM EDT Mon Jul 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CABELL AND
NORTHWESTERN PUTNAM COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3888 8222 3885 8189 3884 8188 3865 8197
      3866 8213
TIME...MOT...LOC 0057Z 186DEG 21KT 3870 8208 

$$

OHC053-WVC053-130115-
/O.CON.KRLX.SV.W.0096.000000T0000Z-210713T0115Z/
Gallia OH-Mason WV-
858 PM EDT Mon Jul 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR EAST CENTRAL GALLIA AND CENTRAL MASON COUNTIES...

At 857 PM EDT, a severe thunderstorm was located 8 miles northwest of
Buffalo, or 10 miles southeast of Gallipolis, moving north at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Point Pleasant, Gallipolis, Henderson, Leon and Southside. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3888 8222 3885 8189 3884 8188 3865 8197
      3866 8213
TIME...MOT...LOC 0057Z 186DEG 21KT 3870 8208 

HAIL...1.00IN
WIND...60MPH
 
$$

MEK

090 
WWUS51 KRLX 130112
SVSRLX

Severe Weather Statement
National Weather Service Charleston WV
912 PM EDT Mon Jul 12 2021

OHC053-WVC053-130122-
/O.EXP.KRLX.SV.W.0096.000000T0000Z-210713T0115Z/
Gallia OH-Mason WV-
912 PM EDT Mon Jul 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL GALLIA AND
CENTRAL MASON COUNTIES WILL EXPIRE AT 915 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However small hail
is still possible with this thunderstorm.

LAT...LON 3888 8222 3885 8189 3884 8188 3865 8197
      3866 8213
TIME...MOT...LOC 0112Z 186DEG 21KT 3878 8207 

$$

MEK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 8:33 PM EDT	Special Weather Statement	RLX	Mason	27 min
Jul 12, 9:14 PM EDT	Special Weather Statement	RLX	Mason	31 min
Jul 13, 4:50 PM EDT	Special Weather Statement	RLX	Wayne	25 min
Jul 13, 5:16 PM EDT	Special Weather Statement	RLX	Wayne	29 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2021 Severe Thunderstorm Warnings in Ohio, 2021 Every severe thunderstorm warning in 2021

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.