Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 109, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Dec 11, 2021, 4:58 AM CST for 12 counties in Kentucky. It was in force for 32 min. 1 report 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, 4:58 AM CST (10:58 UTC)
- Expired
- Dec 11, 2021, 5:30 AM CST
- In force
- 32 min
- Issued by
- NWS Louisville, KY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Adair County, KY, Boyle County, KY, Casey County, KY, Clark County, KY, Fayette County, KY, Garrard County, KY, Jessamine County, KY, Lincoln County, KY, Madison County, KY, Marion County, KY, Mercer County, KY, Taylor County, KY
The radar
The Jackson,KY radar (KJKL), 111 km from the middle of the area, began a volume at 11:00 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, 5:20 AM CST | TSTM WND DMG | 4 Ssw Yosemite, KY | TREES DOWN CHESTNUT HILL ROAD AND POPLAR LEVEL ROAD. TIME ESTIMATED FROM 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
Cncnati-Daytn, OH (KILN), launched 00:00Z, 11.0 hours before the alert went out and 209 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 519 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 325 m²/s²
- 0-3 km storm-relative helicity
- 431 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
894 WUUS53 KLMK 111058 SVRLMK KYC001-021-045-049-067-079-113-137-151-155-167-217-111130- /O.NEW.KLMK.SV.W.0109.211211T1058Z-211211T1130Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Louisville KY 558 AM EST Sat Dec 11 2021 The National Weather Service in Louisville has issued a * Severe Thunderstorm Warning for... Lincoln County in central Kentucky... Southeastern Mercer County in central Kentucky... Garrard County in central Kentucky... Southern Clark County in central Kentucky... Southeastern Marion County in central Kentucky... East central Taylor County in central Kentucky... Southern Jessamine County in central Kentucky... Boyle County in central Kentucky... Central Madison County in central Kentucky... Southeastern Fayette County in central Kentucky... Casey County in central Kentucky... Northeastern Adair County in south central Kentucky... * Until 630 AM EST/530 AM CST/. * At 557 AM EST/457 AM CST/, severe thunderstorms were located along a line extending from Danville to 9 miles west of Liberty, moving east at 45 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... Stanford around 605 AM EST. Lancaster around 610 AM EST. Other locations in the path of these severe thunderstorms include Richmond. 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 3798 8403 3723 8473 3722 8526 3785 8480 TIME...MOT...LOC 1057Z 263DEG 40KT 3764 8475 3729 8510 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ MCK
1 follow-up statement
063 WWUS53 KLMK 111115 SVSLMK Severe Weather Statement National Weather Service Louisville KY 615 AM EST Sat Dec 11 2021 KYC001-155-217-111125- /O.CAN.KLMK.SV.W.0109.000000T0000Z-211211T1130Z/ Marion KY-Taylor KY-Adair KY- 615 AM EST Sat Dec 11 2021 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MARION...EAST CENTRAL TAYLOR AND NORTHEASTERN ADAIR COUNTIES IS CANCELLED... The storms which prompted the warning have moved out of the warned area. Therefore, the warning has been cancelled. A Tornado Watch remains in effect until 900 AM EST for central Kentucky. LAT...LON 3798 8403 3733 8464 3747 8499 3785 8480 TIME...MOT...LOC 1115Z 263DEG 40KT 3766 8452 3731 8487 $$ KYC021-045-049-067-079-113-137-151-167-111130- /O.CON.KLMK.SV.W.0109.000000T0000Z-211211T1130Z/ Lincoln KY-Mercer KY-Garrard KY-Clark KY-Jessamine KY-Boyle KY- Madison KY-Fayette KY-Casey KY- 615 AM EST Sat Dec 11 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 AM EST FOR LINCOLN...SOUTHEASTERN MERCER...GARRARD...SOUTHERN CLARK... SOUTHERN JESSAMINE...BOYLE...CENTRAL MADISON...SOUTHEASTERN FAYETTE AND NORTHEASTERN CASEY COUNTIES... At 615 AM EST, severe thunderstorms were located along a line extending from near Lancaster to near Liberty, moving east at 45 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Lancaster and Richmond. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 900 AM EST for central Kentucky. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3798 8403 3733 8464 3747 8499 3785 8480 TIME...MOT...LOC 1115Z 263DEG 40KT 3766 8452 3731 8487 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ MCK
The 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, 4:18 AM CST | Severe Thunderstorm Warning | LMK | Adair, Allen, Barren, Casey, Cumberland, Green and 5 more | 42 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, 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.