Alert archive / West Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 102, NWS Charleston, WV

August 9, 2021Boone County, Kanawha County, Lincoln County, West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Aug 9, 2021, 4:57 PM EDT for Boone County, Kanawha County, Lincoln County, West Virginia. It was in force for 33 min. 3 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
Aug 9, 2021, 4:57 PM EDT (20:57 UTC)
Expired
Aug 9, 2021, 5:30 PM EDT
In force
33 min
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Boone County, WV, Kanawha County, WV, Lincoln County, WV

The radar

The Charleston,WV radar (KRLX), 17 km from the middle of the area, began a volume at 20:59 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
Aug 9, 5:00 PM EDTTSTM WND DMG6 Nnw Danville, WVSMALL TREE LIMBS DOWN AND THE TOP OF ONE TREE DOWN.
Aug 9, 5:27 PM EDTTSTM WND DMG3 W South Charleston, WVTREE DOWN AT 5019 OHIO ST SO. CHARLESTON
Aug 9, 5:27 PM EDTTSTM WND DMGDunbar, WVTREE DOWN AT WASHINGTON ST W & DUMBAR AVE

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 12:00Z, 9.0 hours before the alert went out and 221 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, Cncnati-Daytn, OH at 12:00Z on 2021-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 210 joules per kilogram.LCLLFCEL10008507005003002001001 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, Cncnati-Daytn, OH at 12:00Z on 2021-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.1939Sfc1 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
210 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1127 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

683 
WUUS51 KRLX 092057
SVRRLX
WVC005-039-043-092145-
/O.NEW.KRLX.SV.W.0102.210809T2057Z-210809T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston WV
457 PM EDT Mon Aug 9 2021

The National Weather Service in Charleston West Virginia has issued a

* Severe Thunderstorm Warning for...
  West central Kanawha County in central West Virginia...
  East central Lincoln County in central West Virginia...
  Northwestern Boone County in central West Virginia...

* Until 545 PM EDT.

* At 457 PM EDT, a severe thunderstorm was located over Julian, or 7
  miles northwest of Madison, moving northeast at 25 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Charleston, Jefferson, South Charleston, St. Albans, Dunbar,
  Chesapeake, Marmet, Belle, Alum Creek, Institute, Julian, Tornado,
  Danville, Sod, Woodville, Ashford and Alkol.

This includes the following highways...
 Interstate 64 in West Virginia between mile markers 49 and 54.
 West Virginia Turnpike between mile markers 89 and 91.
 Route 119 between mile markers 53 and 78.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3805 8191 3813 8199 3842 8178 3824 8153
TIME...MOT...LOC 2057Z 223DEG 20KT 3814 8189 

HAIL...<.75IN
WIND...60MPH
 
$$

08
2 follow-up statements
993 
WWUS51 KRLX 092117
SVSRLX

Severe Weather Statement
National Weather Service Charleston WV
517 PM EDT Mon Aug 9 2021

WVC005-039-043-092145-
/O.CON.KRLX.SV.W.0102.000000T0000Z-210809T2145Z/
Kanawha WV-Lincoln WV-Boone WV-
517 PM EDT Mon Aug 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR WEST CENTRAL KANAWHA...EAST CENTRAL LINCOLN AND NORTH CENTRAL
BOONE COUNTIES...

At 516 PM EDT, a severe thunderstorm was located near Alum Creek, or
11 miles north of Madison, moving northeast at 25 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Charleston, Jefferson, South Charleston, St. Albans, Dunbar, Marmet,
Belle, Institute and Alum Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3816 8181 3821 8188 3842 8178 3824 8153
TIME...MOT...LOC 2116Z 223DEG 20KT 3822 8179 

HAIL...<.75IN
WIND...60MPH
 
$$

08
516 
WWUS51 KRLX 092130
SVSRLX

Severe Weather Statement
National Weather Service Charleston WV
530 PM EDT Mon Aug 9 2021

WVC005-039-043-092140-
/O.CAN.KRLX.SV.W.0102.000000T0000Z-210809T2145Z/
Kanawha WV-Lincoln WV-Boone WV-
530 PM EDT Mon Aug 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL KANAWHA...EAST
CENTRAL LINCOLN AND NORTH CENTRAL BOONE COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

LAT...LON 3816 8181 3821 8188 3842 8178 3824 8153
TIME...MOT...LOC 2127Z 223DEG 20KT 3827 8173 

$$

08

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 4:55 PM EDTSpecial Weather StatementRLXBoone35 min
Aug 9, 5:39 PM EDTSpecial Weather StatementRLXKanawha36 min
Aug 9, 5:57 PM EDTSpecial Weather StatementRLXRoane48 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2021Every 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.