Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 84, NWS Jackson, KY
NWS Jackson, KY issued this severe thunderstorm warning at Aug 10, 2021, 3:28 PM EDT for Clay County, Knox County, Laurel County, Kentucky. 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
- Aug 10, 2021, 3:28 PM EDT (19:28 UTC)
- Expired
- Aug 10, 2021, 4:00 PM EDT
- In force
- 32 min
- Issued by
- NWS Jackson, KY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Clay County, KY, Knox County, KY, Laurel County, KY
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 7.5 hours before the alert went out and 254 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.
- Mixed-layer CAPE
- 1950 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 904 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
615
WUUS53 KJKL 101928
SVRJKL
KYC051-121-125-102000-
/O.NEW.KJKL.SV.W.0084.210810T1928Z-210810T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service JACKSON KY
328 PM EDT Tue Aug 10 2021
The National Weather Service in JACKSON KY has issued a
* Severe Thunderstorm Warning for...
Southeastern Laurel County in south central Kentucky...
Northwestern Knox County in southeastern Kentucky...
West central Clay County in southeastern Kentucky...
* Until 400 PM EDT.
* At 328 PM EDT, a severe thunderstorm was located over Levi Jackson
S.P., or near London, moving east at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near...
Lesbas around 335 PM EDT.
Other locations in the path of this severe thunderstorm include Lida,
Cane Creek and Blackwater.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3707 8412 3716 8403 3710 8376 3689 8400
TIME...MOT...LOC 1928Z 292DEG 11KT 3708 8402
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RAY2 follow-up statements
673 WWUS53 KJKL 101937 SVSJKL Severe Weather Statement National Weather Service JACKSON KY 337 PM EDT Tue Aug 10 2021 KYC051-121-125-102000- /O.CON.KJKL.SV.W.0084.000000T0000Z-210810T2000Z/ Laurel KY-Knox KY-Clay KY- 337 PM EDT Tue Aug 10 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT FOR SOUTHEASTERN LAUREL...NORTHWESTERN KNOX AND WEST CENTRAL CLAY COUNTIES... At 336 PM EDT, a severe thunderstorm was located just northeast of London, moving east at 15 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Lida, Cane Creek, Blackwater, Gibbs, Tedders and Fletcher. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3707 8412 3716 8403 3710 8376 3689 8400 TIME...MOT...LOC 1936Z 292DEG 11KT 3707 8399 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ RAY
250
WWUS53 KJKL 101955
SVSJKL
Severe Weather Statement
National Weather Service JACKSON KY
355 PM EDT Tue Aug 10 2021
KYC051-121-125-102004-
/O.EXP.KJKL.SV.W.0084.000000T0000Z-210810T2000Z/
Laurel KY-Knox KY-Clay KY-
355 PM EDT Tue Aug 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LAUREL...
NORTHWESTERN KNOX AND WEST CENTRAL CLAY COUNTIES WILL EXPIRE AT 400
PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with this thunderstorm.
LAT...LON 3707 8412 3716 8403 3710 8376 3689 8400
TIME...MOT...LOC 1954Z 292DEG 11KT 3706 8395
$$
RAYThe 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, 3:21 PM EDT | Special Weather Statement | JKL | Clay | 39 min |
| Aug 10, 3:25 PM EDT | Special Weather Statement | JKL | Knox | 35 min |
| Aug 10, 5:20 PM EDT | Special Weather Statement | JKL | Martin | 25 min |
Nearby
Severe Thunderstorm Warnings in Kentucky, 2021Every 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; the sounding from the Mesonet's radiosonde archive.