Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 108, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Dec 11, 2021, 4:18 AM CST for 11 counties in Kentucky. It was in force for 42 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
- Dec 11, 2021, 4:18 AM CST (10:18 UTC)
- Expired
- Dec 11, 2021, 5:00 AM CST
- In force
- 42 min
- Issued by
- NWS Louisville, KY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Adair County, KY, Allen County, KY, Barren County, KY, Casey County, KY, Cumberland County, KY, Green County, KY, Hart County, KY, Metcalfe County, KY, Monroe County, KY, Russell County, KY, Taylor County, KY
The radar
The Nashville radar (KOHX), 120 km from the middle of the area, began a volume at 10:20 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 |
|---|---|---|---|
| Dec 11, 4:24 AM CST | TORNADO | 4 Wsw Hestand, KY | NWS STORM SURVEY DETERMINED THAT EF-0 TORNADO CROSSED THE KY/TN BORDER INTO MONROE COUNTY SOUTHWEST OF HESTAND AT 524 AM EST. THE TORNADO HAD PEAK WINDS OF 85 MPH AND A PATH WIDTH OF 75 YARDS. THE TORNADO TRAVELED 5.4 MILES IN MONROE COUNTY, BEFORE LIFTING AT |
| Dec 11, 4:30 AM CST | TSTM WND DMG | 1 Ene Hestand, KY | DAMAGE TO BARN OUTSIDE OF THE VERNON COMMUNITY. TIME ESTIMATED BASED ON RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Dec 11, 1:27 AM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 10.3 hours before the alert went out and 131 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
- 182 J/kg
- Mixed-layer CIN
- -168 J/kg
- Mixed-layer LCL
- 593 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 391 m²/s²
- 0-3 km storm-relative helicity
- 370 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
927
WUUS53 KLMK 111018
SVRLMK
KYC001-003-009-045-057-087-099-169-171-207-217-111100-
/O.NEW.KLMK.SV.W.0108.211211T1018Z-211211T1100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
518 AM EST Sat Dec 11 2021
The National Weather Service in Louisville has issued a
* Severe Thunderstorm Warning for...
Green County in central Kentucky...
Western Russell County in south central Kentucky...
Monroe County in south central Kentucky...
Southeastern Hart County in central Kentucky...
Central Taylor County in central Kentucky...
Southeastern Allen County in south central Kentucky...
Cumberland County in south central Kentucky...
Eastern Barren County in south central Kentucky...
Southwestern Casey County in central Kentucky...
Metcalfe County in south central Kentucky...
Adair County in south central Kentucky...
* Until 600 AM EST/500 AM CST/.
* At 517 AM EST/417 AM CST/, severe thunderstorms were located along
a line extending from 8 miles northwest of Greensburg to 9 miles
north of Lafayette, moving east at 50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Greensburg around 425 AM CST.
Campbellsville around 535 AM EST.
Other locations in the path of these severe thunderstorms include
Tompkinsville and Burkesville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 900 AM EST/800 AM CST/ for
south central and central Kentucky.
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 900 AM EST/800 AM CST/ for
south central and central Kentucky.
&&
LAT...LON 3663 8604 3739 8564 3739 8493 3688 8522
3689 8524 3687 8522 3662 8537 3661 8557
TIME...MOT...LOC 1017Z 264DEG 45KT 3733 8563 3665 8599
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MCK1 follow-up statement
775
WWUS53 KLMK 111045 RRA
SVSLMK
Severe Weather Statement
National Weather Service Louisville KY
545 AM EST Sat Dec 11 2021
KYC003-009-099-171-111055-
/O.CAN.KLMK.SV.W.0108.000000T0000Z-211211T1100Z/
Monroe KY-Hart KY-Allen KY-Barren KY-
545 AM EST Sat Dec 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR MONROE...SOUTHEASTERN HART...
SOUTHEASTERN ALLEN AND EASTERN BARREN COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 900 AM EST/800 AM CST/ for
south central and central Kentucky.
LAT...LON 3700 8563 3739 8533 3739 8493 3688 8522
3689 8524 3687 8522 3663 8536
TIME...MOT...LOC 1045Z 264DEG 45KT 3737 8519 3669 8556
$$
KYC001-045-057-087-169-207-217-111100-
/O.CON.KLMK.SV.W.0108.000000T0000Z-211211T1100Z/
Green KY-Russell KY-Taylor KY-Cumberland KY-Casey KY-Metcalfe KY-
Adair KY-
545 AM EST Sat Dec 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 AM
EST/500 AM CST/ FOR SOUTHEASTERN GREEN...WESTERN RUSSELL...CENTRAL
TAYLOR...CUMBERLAND...SOUTHWESTERN CASEY...EASTERN METCALFE AND ADAIR
COUNTIES...
At 545 AM EST/445 AM CST/, severe thunderstorms were located along a
line extending from 8 miles east of Campbellsville to 7 miles east of
Tompkinsville, moving east at 50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Burkesville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 900 AM EST/800 AM CST/ for
south central and central Kentucky.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3700 8563 3739 8533 3739 8493 3688 8522
3689 8524 3687 8522 3663 8536
TIME...MOT...LOC 1045Z 264DEG 45KT 3737 8519 3669 8556
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
KDWThe office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 7:20 PM CST | Special Weather Statement | LMK | Ohio | 55 min |
| Dec 10, 7:48 PM CST | Tornado Warning | LMK | Ohio | 57 min |
| Dec 10, 8:04 PM CST | Special Weather Statement | LMK | Breckinridge | 56 min |
| Dec 10, 8:24 PM CST | Severe Thunderstorm Warning | LMK | Breckinridge, Hancock | 36 min |
| Dec 10, 8:32 PM CST | Tornado Warning | LMK | Ohio | 30 min |
| Dec 10, 9:21 PM CST | Tornado Warning | LMK | Ohio | 39 min |
| Dec 10, 9:29 PM CST | Special Weather Statement | LMK | Breckinridge | 31 min |
| Dec 10, 9:37 PM CST | Tornado Warning | LMK | Breckinridge, Hardin, Meade | 17 min |
| Dec 10, 10:42 PM CST | Tornado Warning | LMK | Ohio | 63 min |
| Dec 10, 11:07 PM CST | Tornado Warning | LMK | Breckinridge, Grayson, Hancock | 53 min |
| Dec 10, 11:51 PM CST | Tornado Warning | LMK | Breckinridge, Hardin, Meade | 39 min |
| Dec 11, 12:29 AM CST | Special Weather Statement | LMK | Spencer | 16 min |
| Dec 11, 12:30 AM CST | Special Weather Statement | LMK | Bullitt | 15 min |
| Dec 11, 12:33 AM CST | Special Weather Statement | LMK | Henry, Jefferson, Oldham, Shelby, Trimble | 27 min |
| Dec 11, 12:36 AM CST | Tornado Warning | LMK | Logan, Simpson | 39 min |
| Dec 11, 12:41 AM CST | Severe Thunderstorm Warning | LMK | Bullitt, Nelson, Spencer | 34 min |
| Dec 11, 12:44 AM CST | Tornado Warning | LMK | Bullitt, Nelson, Shelby, Spencer | 46 min |
| Dec 11, 12:58 AM CST | Tornado Warning | LMK | Butler, Edmonson, Logan, Simpson, Warren | 47 min |
| Dec 11, 1:27 AM CST | Tornado Warning | LMK | Barren, Butler, Edmonson, Hart, Metcalfe, Warren | 48 min |
| Dec 11, 1:28 AM CST | Tornado Warning | LMK | Franklin, Scott | 20 min |
| Dec 11, 1:45 AM CST | Special Weather Statement | LMK | Bullitt, Hardin, Larue, Nelson, Spencer | 30 min |
| Dec 11, 1:55 AM CST | Tornado Warning | LMK | Barren, Green, Hart, Larue, Marion, Metcalfe and 1 more | 50 min |
| Dec 11, 2:08 AM CST | Areal Flood Advisory | LMK | Breckinridge, Bullitt, Hardin, Jefferson, Meade | 115 min |
| Dec 11, 2:16 AM CST | Severe Thunderstorm Warning | LMK | Anderson, Franklin, Harrison, Henry, Nelson, Scott and 3 more | 29 min |
| Dec 11, 2:16 AM CST | Severe Thunderstorm Warning | LMK | Butler, Logan, Simpson, Warren | 44 min |
| Dec 11, 2:22 AM CST | Tornado Warning | LMK | Boyle, Casey, Larue, Lincoln, Marion, Mercer and 1 more | 38 min |
| Dec 11, 2:59 AM CST | Tornado Warning | LMK | Boyle, Casey, Garrard, Jessamine, Lincoln, Madison and 1 more | 46 min |
| Dec 11, 3:00 AM CST | Flash Flood Warning | LMK | Barren, Butler, Edmonson, Green, Hart, Logan and 3 more | 6 hr |
| Dec 11, 3:10 AM CST | Areal Flood Advisory | LMK | Anderson, Bullitt, Franklin, Harrison, Jefferson, Nelson and 3 more | 4 hr |
| Dec 11, 3:13 AM CST | Severe Thunderstorm Warning | LMK | Allen, Barren, Butler, Edmonson, Hart, Logan and 2 more | 32 min |
| Dec 11, 3:20 AM CST | Severe Thunderstorm Warning | LMK | Bourbon, Clark, Fayette, Harrison, Jessamine, Nicholas and 2 more | 25 min |
| Dec 11, 3:38 AM CST | Severe Thunderstorm Warning | LMK | Clark, Madison | 37 min |
| Dec 11, 3:43 AM CST | Areal Flood Advisory | LMK | Adair, Boyle, Casey, Garrard, Green, Lincoln and 3 more | 4 hr |
| Dec 11, 3:47 AM CST | Severe Thunderstorm Warning | LMK | Allen, Barren, Edmonson, Grayson, Green, Hardin and 7 more | 28 min |
| Dec 11, 3:56 AM CST | Flash Flood Warning | LMK | Breckinridge, Bullitt, Franklin, Grayson, Hancock, Hardin and 6 more | 3 hr |
| Dec 11, 4:01 AM CST | Tornado Warning | LMK | Garrard, Madison | 18 min |
| Dec 11, 4:23 AM CST | Tornado Warning | LMK | Clark, Garrard, Lincoln, Madison | 37 min |
| Dec 11, 4:27 AM CST | Tornado Warning | LMK | Cumberland, Monroe | 33 min |
| Dec 11, 4:52 AM CST | Tornado Warning | LMK | Casey, Clinton, Cumberland, Russell | 23 min |
| Dec 11, 4:58 AM CST | Severe Thunderstorm Warning | LMK | Adair, Boyle, Casey, Clark, Fayette, Garrard and 6 more | 32 min |
| Dec 11, 4:58 AM CST | Severe Thunderstorm Warning | LMK | Adair, Boyle, Casey, Green, Lincoln, Marion and 2 more | 32 min |
| Dec 11, 5:28 AM CST | Severe Thunderstorm Warning | LMK | Clark, Garrard, Lincoln, Madison | 32 min |
| Dec 11, 7:42 AM CST | Areal Flood Warning | LMK | Garrard, Lincoln, Madison | 3 hr |
| Dec 11, 9:18 AM CST | Special Weather Statement | LMK | Anderson, Franklin, Henry, Nelson, Shelby, Spencer and 1 more | 27 min |
| Dec 11, 10:10 AM CST | Special Weather Statement | LMK | Anderson, Bourbon, Clark, Fayette, Harrison, Jessamine and 6 more | 65 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.