Alert archive / Kentucky / Special Weather Statements in 2021

Special Weather Statement, NWS Charleston, WV

August 9, 2021Lawrence County, Kentucky

NWS Charleston, WV issued this special weather statement at Aug 9, 2021, 3:44 PM EDT for Lawrence County, Kentucky. It was in force for 31 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 9, 2021, 3:44 PM EDT (19:44 UTC)
Expired
Aug 9, 2021, 4:15 PM EDT
In force
31 min
Issued by
NWS Charleston, WV
Hail
0.25 in
Wind
40

County Lawrence County, KY

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.7 hours before the alert went out and 156 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°0°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.

551 
WWUS81 KRLX 091944
SPSRLX

Special Weather Statement
National Weather Service Charleston WV
344 PM EDT Mon Aug 9 2021
 
KYZ102-103-105-092015-
Boyd KY-Carter KY-Lawrence KY-
344 PM EDT Mon Aug 9 2021

...A strong thunderstorm will impact portions of southwestern Boyd,
central Lawrence and southern Carter Counties through 415 PM EDT...

At 342 PM EDT, Doppler radar was tracking a strong thunderstorm over
Bruin, or near Grayson Lake State Park, moving east at 35 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
Blaine, Grayson Lake State Park, Yatesville Lake State Park,
Webbville, Denton, Martha, Rush, Grahn, Willard, Hitchins,
Houckville, Fallsburg and Mavity.

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.

&&

LAT...LON 3835 8270 3802 8262 3799 8302 3804 8300
      3805 8296 3809 8293 3811 8289 3817 8292
      3817 8298 3820 8301 3820 8304 3818 8305
      3823 8309 3824 8314 3827 8317 3824 8322
      3828 8323
TIME...MOT...LOC 1942Z 260DEG 31KT 3817 8303 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

$$

22

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, 4:57 PM EDTSevere Thunderstorm WarningRLXBoone, Kanawha, Lincoln33 min
Aug 9, 5:39 PM EDTSpecial Weather StatementRLXKanawha36 min
Aug 9, 5:57 PM EDTSpecial Weather StatementRLXRoane48 min

Nearby

Special Weather Statements in Kentucky, 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.