Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 88, NWS Jackson, KY

September 22, 20216 counties in Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Sep 22, 2021, 8:55 AM EDT for 6 counties in Kentucky. It was in force for 50 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
Sep 22, 2021, 8:55 AM EDT (12:55 UTC)
Expired
Sep 22, 2021, 9:45 AM EDT
In force
50 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Bell County, KY, Clay County, KY, Harlan County, KY, Knox County, KY, Leslie County, KY, Perry County, KY

The radar

The Jackson,KY radar (KJKL), 61 km from the middle of the area, began a volume at 12:57 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

TimeReportWhereRemark
Sep 22, 9:42 AM EDTTSTM WND DMGWooton, KYCORRECTS PREVIOUS TSTM WND DMG REPORT FROM WOOTON. LESLIE COUNTY 911 CALL CENTER REPORTED TELEPHONE LINES DOWN BLOCKING BOTH LANES OF HIGHWAY 80 NEAR THE INTERSECTION WITH WOOTON RD.
Sep 22, 9:42 AM EDTTSTM WND DMGWooton, KYLESLIE COUNTY 911 CALL CENTER REPORTED POWER LINES DOWN BLOCKING BOTH LANES OF HIGHWAY 80 NEAR THE INTERSECTION WITH WOOTON RD.

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 12:00Z, 0.9 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2021-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Cncnati-Daytn, OH at 12:00Z on 2021-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
496 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

478 
WUUS53 KJKL 221255
SVRJKL
KYC013-051-095-121-131-193-221345-
/O.NEW.KJKL.SV.W.0088.210922T1255Z-210922T1345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service JACKSON KY
855 AM EDT Wed Sep 22 2021

The National Weather Service in JACKSON KY has issued a

* Severe Thunderstorm Warning for...
  Northwestern Harlan County in southeastern Kentucky...
  Northeastern Bell County in southeastern Kentucky...
  Northeastern Knox County in southeastern Kentucky...
  Leslie County in southeastern Kentucky...
  Western Perry County in southeastern Kentucky...
  Southeastern Clay County in southeastern Kentucky...

* Until 945 AM EDT.

* At 855 AM EDT, severe thunderstorms were located along a line
  extending from Goose Rock to Wallsend, moving northeast at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Severe thunderstorms will be near...
  Botto around 900 AM EDT.
  Kettle Island around 905 AM EDT.
  Marcum around 910 AM EDT.
  Bear Branch around 915 AM EDT.

Other locations in the path of these severe thunderstorms include
Bobs Fork and Saylor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3728 8332 3689 8323 3671 8374 3712 8376
TIME...MOT...LOC 1255Z 236DEG 29KT 3707 8371 3678 8372 

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

$$

FISHER
2 follow-up statements
150 
WWUS53 KJKL 221313
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
913 AM EDT Wed Sep 22 2021

KYC013-051-095-121-131-193-221345-
/O.CON.KJKL.SV.W.0088.000000T0000Z-210922T1345Z/
Harlan KY-Bell KY-Knox KY-Leslie KY-Perry KY-Clay KY-
913 AM EDT Wed Sep 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 AM EDT
FOR NORTHWESTERN HARLAN...NORTHEASTERN BELL...EASTERN KNOX...
LESLIE...WESTERN PERRY AND SOUTHEASTERN CLAY COUNTIES...

At 912 AM EDT, severe thunderstorms were located along a line
extending from Bear Branch to Stony Fork Junction, moving northeast
at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
  Bobs Fork, Thousandsticks, Dryhill, Chappell and Napier.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3728 8332 3689 8323 3675 8365 3715 8367
TIME...MOT...LOC 1312Z 240DEG 34KT 3714 8354 3685 8355 

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

$$

FISHER
493 
WWUS53 KJKL 221339
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
939 AM EDT Wed Sep 22 2021

KYC013-051-095-121-131-193-221349-
/O.EXP.KJKL.SV.W.0088.000000T0000Z-210922T1345Z/
Harlan KY-Bell KY-Knox KY-Leslie KY-Perry KY-Clay KY-
939 AM EDT Wed Sep 22 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN HARLAN...
NORTHEASTERN BELL...EASTERN KNOX...LESLIE...WESTERN PERRY AND
SOUTHEASTERN CLAY COUNTIES WILL EXPIRE AT 945 AM EDT...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

LAT...LON 3728 8332 3689 8323 3675 8365 3715 8367
TIME...MOT...LOC 1339Z 236DEG 29KT 3725 8333 3696 8334 

$$

FISHER

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 22, 8:50 AM EDTSpecial Weather StatementJKLLeslie40 min
Sep 22, 9:27 AM EDTSevere Thunderstorm WarningJKLBreathitt, Floyd, Harlan, Knott, Leslie, Letcher and 2 more48 min
Sep 22, 9:35 AM EDTSpecial Weather StatementJKLElliott, Johnson, Magoffin40 min
Sep 22, 10:05 AM EDTSevere Thunderstorm WarningJKLFloyd, Johnson, Knott, Magoffin, Martin, Morgan and 1 more40 min
Sep 22, 10:13 AM EDTSevere Thunderstorm WarningJKLFloyd, Harlan, Knott, Letcher, Pike47 min
Sep 22, 10:48 AM EDTSpecial Weather StatementJKLMartin27 min
Sep 22, 10:58 AM EDTSpecial Weather StatementJKLPike47 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.