Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 92, NWS Jackson, KY

October 6, 2021Wayne County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Oct 6, 2021, 8:45 PM EDT for Wayne County, Kentucky. It was in force for 45 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
Oct 6, 2021, 8:45 PM EDT (00:45 UTC)
Expired
Oct 6, 2021, 9:30 PM EDT
In force
45 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

County Wayne County, KY

The radar

The Knoxville radar (KMRX), 149 km from the middle of the area, began a volume at 00:44 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.8 hours before the alert went out and 160 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, Nashville Metro, TN at 00:00Z on 2021-10-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 595 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, Nashville Metro, TN at 00:00Z on 2021-10-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.19395878Sfc1 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
595 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
871 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.7

Open this sounding in Storm Lab

The text

As transmitted.

702 
WUUS53 KJKL 070045
SVRJKL
KYC231-070130-
/O.NEW.KJKL.SV.W.0092.211007T0045Z-211007T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service JACKSON KY
845 PM EDT Wed Oct 6 2021

The National Weather Service in JACKSON KY has issued a

* Severe Thunderstorm Warning for...
  Southwestern Wayne County in south central Kentucky...

* Until 930 PM EDT.

* At 844 PM EDT, a severe thunderstorm was located 7 miles north of
  Jamestown, moving north at 20 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Sunnybrook, Powersburg and Hidalgo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3661 8496 3663 8500 3668 8500 3669 8502
      3675 8501 3672 8480 3661 8481
TIME...MOT...LOC 0044Z 184DEG 19KT 3654 8498 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GEOGERIAN
2 follow-up statements
952 
WWUS53 KJKL 070106
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
906 PM EDT Wed Oct 6 2021

KYC231-070130-
/O.CON.KJKL.SV.W.0092.000000T0000Z-211007T0130Z/
Wayne KY-
906 PM EDT Wed Oct 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR SOUTHWESTERN WAYNE COUNTY...

At 905 PM EDT, a severe thunderstorm was located near Slickford, or
13 miles south of Monticello, moving north 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...
Mount Pisgah, Hidalgo, Powersburg, Slickford and Sunnybrook. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3661 8496 3663 8500 3668 8500 3669 8502
      3675 8501 3672 8480 3661 8481
TIME...MOT...LOC 0105Z 184DEG 14KT 3665 8491 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GEOGERIAN
818 
WWUS53 KJKL 070128
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
928 PM EDT Wed Oct 6 2021

KYC231-070137-
/O.EXP.KJKL.SV.W.0092.000000T0000Z-211007T0130Z/
Wayne KY-
928 PM EDT Wed Oct 6 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WAYNE COUNTY WILL
EXPIRE AT 930 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

LAT...LON 3661 8496 3663 8500 3668 8500 3669 8502
      3675 8501 3672 8480 3661 8481
TIME...MOT...LOC 0127Z 184DEG 19KT 3676 8490 

$$

GEOGERIAN

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 6, 8:48 PM EDTAreal Flood AdvisoryJKLPulaski, Wayne3 hr
Oct 6, 9:04 PM EDTSevere Thunderstorm WarningJKLMcCreary, Wayne41 min
Oct 6, 9:13 PM EDTSevere Thunderstorm WarningJKLWayne37 min
Oct 6, 9:44 PM EDTSpecial Weather StatementJKLPulaski31 min
Oct 6, 9:55 PM EDTAreal Flood AdvisoryJKLMcCreary, Pulaski, Wayne2 hr

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; radar from the NEXRAD Level II archive.