Alert archive / Kentucky / Special Weather Statements in 2021

Special Weather Statement, NWS Jackson, KY

August 10, 2021Clay County, Kentucky

NWS Jackson, KY issued this special weather statement at Aug 10, 2021, 3:21 PM EDT for Clay County, Kentucky. It was in force for 39 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 10, 2021, 3:21 PM EDT (19:21 UTC)
Expired: Aug 10, 2021, 4:00 PM EDT
In force: 39 min
Issued by: NWS Jackson, KY
Hail: 0.00 in
Wind: 30

County Clay County, KY

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.4 hours before the alert went out and 266 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: 1366 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 920 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

As transmitted.

330 
WWUS83 KJKL 101921
SPSJKL

Special Weather Statement
National Weather Service JACKSON KY
321 PM EDT Tue Aug 10 2021
 
KYZ116-117-102000-
Clay KY-Leslie KY-
321 PM EDT Tue Aug 10 2021

...A strong thunderstorm will impact portions of southwestern Leslie
and eastern Clay Counties through 400 PM EDT...

At 320 PM EDT, Doppler radar was tracking a strong thunderstorm over
Tanksley, or near Manchester, moving southeast at 30 mph.

HAZARD...Winds in excess of 35 mph.

SOURCE...Radar indicated.

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

This strong thunderstorm will be near...
  Hector, Boho and Enline around 325 PM EDT.
  Peabody, Goose Rock, Big Creek and Bear Branch around 330 EDT.
  Plank around 335 PM EDT.
  Creekville, Marcum, and Brightshade around 340 PM EDT.

Other locations in the path of this storm include Spring Creek,
Ashers Fork, Roark, Skidmore, Gardner and Asher.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 3696 8359 3696 8365 3698 8366 3698 8368
      3723 8382 3731 8367 3702 8336 3694 8355
TIME...MOT...LOC 1920Z 323DEG 25KT 3718 8369 

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

$$

RAY

The office that day

Everything else NWS Jackson, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 10, 1:16 PM EDT	Special Weather Statement	JKL	Wayne	29 min
Aug 10, 1:29 PM EDT	Special Weather Statement	JKL	Estill, Powell	46 min
Aug 10, 1:46 PM EDT	Special Weather Statement	JKL	Jackson	44 min
Aug 10, 2:15 PM EDT	Special Weather Statement	JKL	Jackson, Lee	30 min
Aug 10, 2:19 PM EDT	Special Weather Statement	JKL	Knox	41 min
Aug 10, 3:25 PM EDT	Special Weather Statement	JKL	Knox	35 min
Aug 10, 3:28 PM EDT	Severe Thunderstorm Warning	JKL	Clay, Knox, Laurel	32 min
Aug 10, 5:20 PM EDT	Special Weather Statement	JKL	Martin	25 min

Nearby

Special Weather Statements in Kentucky, 2021 Every 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.