Alert archive / West Virginia / Special Weather Statements in 2021

Special Weather Statement, NWS Charleston, WV

August 4, 2021Lewis County, West Virginia

NWS Charleston, WV issued this special weather statement at Aug 4, 2021, 6:35 PM EDT for Lewis County, West Virginia. It was in force for 40 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
Aug 4, 2021, 6:35 PM EDT (22:35 UTC)
Expired
Aug 4, 2021, 7:15 PM EDT
In force
40 min
Issued by
NWS Charleston, WV
Hail
0.00 in
Wind
30

County Lewis County, WV

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 10.6 hours before the alert went out and 154 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, Pittsburgh, PA at 12:00Z on 2021-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 52 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, Pittsburgh, PA at 12:00Z on 2021-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 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
52 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
1110 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

252 
WWUS81 KRLX 042235
SPSRLX

Special Weather Statement
National Weather Service Charleston WV
635 PM EDT Wed Aug 4 2021
 
WVZ030-031-042315-
Harrison WV-Lewis WV-
635 PM EDT Wed Aug 4 2021

...A strong thunderstorm will impact portions of northern Lewis and
southwestern Harrison Counties through 715 PM EDT...

At 635 PM EDT, Doppler radar was tracking a strong thunderstorm near
Stonewall Jackson, or near Weston, moving northeast at 10 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

Locations impacted include...
Weston, Stonewood, Nutter Fort, Anmoore, Jackson Mill, Stonewall
Jackson, West Milford, Lost Creek, Jane Lew, Camden and Horner.

This includes the following highways...
 Interstate 79 between mile markers 86 and 115.
 Route 33 between mile markers 1 and 5.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

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

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3911 8029 3910 8030 3894 8038 3888 8043
      3893 8063 3893 8064 3919 8055 3926 8030
TIME...MOT...LOC 2235Z 204DEG 8KT 3896 8050 

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

$$

08

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 4:13 PM EDTSpecial Weather StatementRLXWebster32 min
Aug 4, 5:24 PM EDTSpecial Weather StatementRLXTyler36 min
Aug 4, 7:18 PM EDTFlash Flood WarningRLXHarrison, Lewis93 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.