Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 26, NWS Jackson, KY

April 8, 20214 counties in Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Apr 8, 2021, 8:00 PM EDT for 4 counties in Kentucky. It was in force for 45 min. 2 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: Apr 8, 2021, 8:00 PM EDT (00:00 UTC)
Expired: Apr 8, 2021, 8:45 PM EDT
In force: 45 min
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Breathitt County, KY, Clay County, KY, Owsley County, KY, Perry County, KY

The radar

The Jackson,KY radar (KJKL), 37 km from the middle of the area, began a volume at 00:02 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

Time	Report	Where	Remark
Apr 8, 8:05 PM EDT	HAIL 1	Oneida, KY	PICTURE OF ESTIMATED QUARTER-SIZED HAIL RECEIVED VIA SOCIAL MEDIA.
Apr 8, 8:37 PM EDT	HAIL 1	Whick, KY	TRAINED SPOTTER REPORTED NICKEL TO QUARTER-SIZED HAIL IN WHICK.

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 00:00Z, 0.0 hours before the alert went out and 234 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: 4 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 1313 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 216 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted.

884 
WUUS53 KJKL 090000
SVRJKL
KYC025-051-189-193-090045-
/O.NEW.KJKL.SV.W.0026.210409T0000Z-210409T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service JACKSON KY
800 PM EDT Thu Apr 8 2021

The National Weather Service in JACKSON KY has issued a

* Severe Thunderstorm Warning for...
  Southeastern Owsley County in southeastern Kentucky...
  Northwestern Perry County in southeastern Kentucky...
  Southwestern Breathitt County in southeastern Kentucky...
  Northeastern Clay County in southeastern Kentucky...

* Until 845 PM EDT.

* At 800 PM EDT, a severe thunderstorm was located over Teges, or 11
  miles northeast of Manchester, moving northeast at 35 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Buckhorn, Cowcreek, Barcreek, Beech, Chestnutburg, Morris Fork,
  Valjean, Taff, Crockettsville, Oneida, Saldee and Arnett.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3720 8370 3729 8380 3757 8345 3739 8326
TIME...MOT...LOC 0000Z 233DEG 31KT 3730 8366 

HAIL...1.50IN
WIND...60MPH
 
$$

HAL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 8:19 PM EDT	Special Weather Statement	JKL	Laurel	26 min
Apr 8, 8:24 PM EDT	Special Weather Statement	JKL	Magoffin	36 min
Apr 8, 8:31 PM EDT	Special Weather Statement	JKL	Harlan	29 min
Apr 8, 8:38 PM EDT	Severe Thunderstorm Warning	JKL	Johnson, Magoffin, Morgan	30 min
Apr 8, 8:45 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Knott, Magoffin	45 min
Apr 8, 8:56 PM EDT	Severe Thunderstorm Warning	JKL	Clay, Knox, Leslie	30 min
Apr 8, 9:05 PM EDT	Special Weather Statement	JKL	Harlan	40 min
Apr 8, 9:19 PM EDT	Special Weather Statement	JKL	Jackson	26 min
Apr 8, 9:30 PM EDT	Special Weather Statement	JKL	Johnson	30 min
Apr 8, 9:55 PM EDT	Special Weather Statement	JKL	Clay	35 min
Apr 8, 10:01 PM EDT	Severe Thunderstorm Warning	JKL	Johnson, Martin	29 min
Apr 8, 11:24 PM EDT	Special Weather Statement	JKL	Leslie	21 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2021 Every 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.