Alert archive / West Virginia / Special Weather Statements in 2021

Special Weather Statement, NWS Charleston, WV

October 8, 2021Roane County, West Virginia

NWS Charleston, WV issued this special weather statement at Oct 8, 2021, 9:13 PM EDT for Roane County, West Virginia. It was in force for 32 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
Oct 8, 2021, 9:13 PM EDT (01:13 UTC)
Expired
Oct 8, 2021, 9:45 PM EDT
In force
32 min
Issued by
NWS Charleston, WV
Hail
0.00 in
Wind
30

County Roane County, WV

The radar

The Charleston,WV radar (KRLX), 47 km from the middle of the area, began a volume at 01:13 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

Roanoke, VA (KRNK), launched 00:00Z, 1.2 hours before the alert went out and 219 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, Roanoke, VA at 00:00Z on 2021-10-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 101 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, Roanoke, VA at 00:00Z on 2021-10-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.193958Sfc1 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
101 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
540 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

696 
WWUS81 KRLX 090113
SPSRLX

Special Weather Statement
National Weather Service Charleston WV
913 PM EDT Fri Oct 8 2021
 
WVZ015-016-018-027-090145-
Calhoun WV-Clay WV-Roane WV-Kanawha WV-
913 PM EDT Fri Oct 8 2021

...Strong thunderstorms will impact portions of south central
Calhoun, northeastern Kanawha, southern Roane and west central Clay
Counties through 945 PM EDT...

At 912 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles northwest of Clendenin to Pinch.
Movement was east at 15 mph.

HAZARD...Winds in excess of 30 mph. Torrential rainfall.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Torrential rainfall is also occurring 
         with these storms and may lead to localized flooding.

Locations impacted include...
Clendenin, Pinch, Elkview, Amma, Glen, Left Hand, Looneyville,
Tariff, Procious and Walton.

This includes Interstate 79 between mile markers 8 and 31.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Excessive runoff from heavy rainfall will cause elevated levels on 
small creeks and streams, and ponding of water on highways, streets 
and underpasses, as well as other poor drainage areas and low lying 
spots. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3875 8111 3838 8124 3834 8156 3863 8146
TIME...MOT...LOC 0112Z 251DEG 13KT 3856 8141 3838 8147 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

$$

20

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 8, 8:33 PM EDTSpecial Weather StatementRLXBoone, Kanawha27 min
Oct 8, 9:00 PM EDTFlash Flood WarningRLXBoone, Kanawha, Lincoln, Putnam3 hr
Oct 8, 9:47 PM EDTSpecial Weather StatementRLXClay28 min

Nearby

Special Weather Statements in West Virginia, 2021Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.