Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 93, NWS Jackson, KY

October 6, 2021McCreary County, Wayne County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Oct 6, 2021, 9:04 PM EDT for McCreary County, Wayne County, Kentucky. It was in force for 41 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, 9:04 PM EDT (01:04 UTC)
Expired
Oct 6, 2021, 9:45 PM EDT
In force
41 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties McCreary County, KY, Wayne County, KY

The radar

The Knoxville radar (KMRX), 133 km from the middle of the area, began a volume at 01:04 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, 1.1 hours before the alert went out and 174 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.

409 
WUUS53 KJKL 070104
SVRJKL
KYC147-231-070145-
/O.NEW.KJKL.SV.W.0093.211007T0104Z-211007T0145Z/

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

The National Weather Service in JACKSON KY has issued a

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

* Until 945 PM EDT.

* At 903 PM EDT, a severe thunderstorm was located near Mount Pisgah,
  or 12 miles northeast of Jamestown, moving northeast at 20 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Great Meadows Campsites around 915 PM EDT.

Other locations in the path of this severe thunderstorm include
Parmleysville and Griffin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3661 8481 3672 8480 3670 8467 3660 8474
TIME...MOT...LOC 0103Z 204DEG 18KT 3658 8480 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GEOGERIAN
3 follow-up statements
225 
WWUS53 KJKL 070120
SVSJKL

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

KYC147-231-070145-
/O.CON.KJKL.SV.W.0093.000000T0000Z-211007T0145Z/
Wayne KY-McCreary KY-
920 PM EDT Wed Oct 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM EDT
FOR SOUTH CENTRAL WAYNE AND SOUTHWESTERN MCCREARY COUNTIES...

At 919 PM EDT, a severe thunderstorm was located over Parmleysville,
or 10 miles south of Monticello, moving north at 25 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

This severe thunderstorm will remain over mainly rural areas of south
central Wayne and southwestern McCreary Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3661 8481 3672 8480 3670 8467 3660 8474
TIME...MOT...LOC 0119Z 189DEG 23KT 3669 8478 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GEOGERIAN
410 
WWUS53 KJKL 070134
SVSJKL

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

KYC147-231-070145-
/O.CON.KJKL.SV.W.0093.000000T0000Z-211007T0145Z/
Wayne KY-McCreary KY-
934 PM EDT Wed Oct 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM EDT
FOR SOUTH CENTRAL WAYNE AND WESTERN MCCREARY COUNTIES...

At 934 PM EDT, a severe thunderstorm was located over Parmleysville,
or 11 miles south of Monticello, moving north at 20 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Parmleysville and Griffin. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3672 8480 3670 8467 3663 8472 3664 8481
TIME...MOT...LOC 0134Z 199DEG 17KT 3669 8478 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GEOGERIAN
194 
WWUS53 KJKL 070140
SVSJKL

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

KYC147-231-070150-
/O.EXP.KJKL.SV.W.0093.000000T0000Z-211007T0145Z/
Wayne KY-McCreary KY-
940 PM EDT Wed Oct 6 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL WAYNE AND
WESTERN MCCREARY COUNTIES WILL EXPIRE AT 945 PM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds and heavy rain are still
possible with this thunderstorm.

LAT...LON 3672 8480 3670 8467 3663 8472 3664 8481
TIME...MOT...LOC 0140Z 204DEG 18KT 3671 8477 

$$

GEOGERIAN

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 6, 8:45 PM EDTSevere Thunderstorm WarningJKLWayne45 min
Oct 6, 8:48 PM EDTAreal Flood AdvisoryJKLPulaski, Wayne3 hr
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.