Alert archive / West Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 94, NWS Charleston, WV

July 10, 2021McDowell County, West Virginia; Buchanan County, Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Jul 10, 2021, 4:30 PM EDT for McDowell County, West Virginia; Buchanan County, Virginia. It was in force for 45 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 10, 2021, 4:30 PM EDT (20:30 UTC)
Expired: Jul 10, 2021, 5:15 PM EDT
In force: 45 min
Issued by: NWS Charleston, WV
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Buchanan County, VA, McDowell County, WV

The radar

The Charleston,WV radar (KRLX), 123 km from the middle of the area, began a volume at 20:33 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 10, 4:40 PM EDT	TSTM WND DMG	2 E Vansant, VA	TREES DOWN ON US 460.
Jul 10, 4:45 PM EDT	TSTM WND DMG	7 Ene Grundy, VA	TREES DOWN ON SLATE CREEK ROAD AND ACROSS RAILROAD TRACKS NEAR THAT AREA, SHUTTING DOWN THE LINE FOR A WHILE.

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

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 8.5 hours before the alert went out and 214 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1182 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -38 m²/s²
0-3 km storm-relative helicity: 6 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

538 
WUUS51 KRLX 102030
SVRRLX
VAC027-WVC047-102115-
/O.NEW.KRLX.SV.W.0094.210710T2030Z-210710T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston WV
430 PM EDT Sat Jul 10 2021

The National Weather Service in Charleston West Virginia has issued a

* Severe Thunderstorm Warning for...
  Buchanan County in southwestern Virginia...
  Southwestern McDowell County in southern West Virginia...

* Until 515 PM EDT.

* At 430 PM EDT, a severe thunderstorm was located near Grundy,
  moving east at 15 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Grundy, Bradshaw, Stacy, Vansant, Hurley, Avondale, Jolo, Oakwood
  and Roseann.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm. 
Move indoors immediately. Lightning is one of nature's leading 
killers. Remember, if you can hear thunder, you are close enough to 
be struck by lightning.

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 3726 8219 3744 8210 3743 8171 3724 8174
      3720 8177 3720 8178 3718 8180 3717 8187
      3715 8187 3715 8190 3713 8193 3713 8196
      3712 8198
TIME...MOT...LOC 2030Z 287DEG 14KT 3734 8208 

HAIL...0.75IN
WIND...60MPH
 
$$

ABE

2 follow-up statements

057 
WWUS51 KRLX 102048
SVSRLX

Severe Weather Statement
National Weather Service Charleston WV
448 PM EDT Sat Jul 10 2021

VAC027-WVC047-102115-
/O.CON.KRLX.SV.W.0094.000000T0000Z-210710T2115Z/
Buchanan VA-McDowell WV-
448 PM EDT Sat Jul 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR CENTRAL BUCHANAN AND SOUTHWESTERN MCDOWELL COUNTIES...

At 447 PM EDT, a severe thunderstorm was located near Grundy, moving
southeast at 15 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Grundy, Bradshaw, Stacy, Vansant, Avondale, Jolo, Oakwood and
Roseann.

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 3725 8212 3742 8202 3743 8171 3724 8174
      3720 8177 3720 8178 3718 8180 3717 8187
      3715 8187 3715 8190 3713 8193 3713 8196
      3712 8198
TIME...MOT...LOC 2047Z 293DEG 15KT 3729 8199 

HAIL...0.75IN
WIND...60MPH
 
$$

ABE

608 
WWUS51 KRLX 102116
SVSRLX

Severe Weather Statement
National Weather Service Charleston WV
516 PM EDT Sat Jul 10 2021

VAC027-WVC047-102125-
/O.EXP.KRLX.SV.W.0094.000000T0000Z-210710T2115Z/
Buchanan VA-McDowell WV-
516 PM EDT Sat Jul 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BUCHANAN AND
SOUTHWESTERN MCDOWELL COUNTIES HAS EXPIRED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire.  However heavy
rain is still possible with this thunderstorm.

LAT...LON 3725 8212 3742 8202 3743 8171 3724 8174
      3720 8177 3720 8178 3718 8180 3717 8187
      3715 8187 3715 8190 3713 8193 3713 8196
      3712 8198
TIME...MOT...LOC 2115Z 287DEG 14KT 3726 8186 

$$

ABE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 12:38 PM EDT	Special Weather Statement	RLX	Cabell, Wayne	52 min
Jul 10, 1:17 PM EDT	Special Weather Statement	RLX	Mingo	43 min
Jul 10, 1:23 PM EDT	Severe Thunderstorm Warning	RLX	Logan, McDowell, Mingo, Wyoming	37 min
Jul 10, 1:27 PM EDT	Special Weather Statement	RLX	Boone, Cabell, Kanawha, Lincoln, Mason, Putnam	48 min
Jul 10, 2:51 PM EDT	Special Weather Statement	RLX	Fayette	39 min
Jul 10, 5:16 PM EDT	Severe Thunderstorm Warning	RLX	McDowell	29 min
Jul 10, 1:32 PM EDT	Special Weather Statement	RLX	Buchanan	28 min
Jul 10, 4:00 PM EDT	Special Weather Statement	RLX	Buchanan	45 min
Jul 10, 5:52 PM EDT	Special Weather Statement	RLX	Buchanan	53 min
Jul 10, 6:23 PM EDT	Flash Flood Warning	RLX	Buchanan	2 hr

Nearby

Severe Thunderstorm Warnings in West Virginia, 2021 Severe Thunderstorm Warnings in Virginia, 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.