Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 101, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Dec 11, 2021, 1:41 AM EST for Bullitt County, Nelson County, Spencer County, Kentucky. It was in force for 34 min. 4 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, 1:41 AM EST (06:41 UTC)
- Expired
- Dec 11, 2021, 2:15 AM EST
- In force
- 34 min
- Issued by
- NWS Louisville, KY
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Bullitt County, KY, Nelson County, KY, Spencer County, KY
The radar
The Louisville radar (KLVX), 47 km from the middle of the area, began a volume at 06:44 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 11, 1:50 AM EST | TSTM WND DMG | 2 Nnw Highgrove, KY | SOCIAL MEDIA PICTURES SHOWS STRUCTURAL DAMAGE TO TWO DIFFERENT BUILDINGS, TREES BLOWN ACROSS OLD LOUISVILLE ROAD. TIME ESTIMATED BY RADAR. |
| Dec 11, 1:51 AM EST | TORNADO | 3 Nnw Highgrove, KY | ...CORRECTS PREVIOUS TORNADO REPORT FROM 3 NNW HIGHGROVE... AN EF-1 TORNADO OCCURRED 3 SE MOUNT WASHINGTON, KY. THE TORNADO HAD A MAX PATH WIDTH OF 100 YARDS AND A LENGTH OF 1.5 MILES. THE MAX WIND SPEEDS WERE 95 MPH, AND THE TORNADO LIFTED 4 MILE SE OF MOUNT |
| Dec 11, 1:51 AM EST | TORNADO | 3 Nnw Highgrove, KY | CORRECTS PREVIOUS TORNADO REPORT FROM 3 NNW HIGHGROVE. AN EF-1 TORNADO OCCURRED 3 SE MOUNT WASHINGTON, KY. THE TORNADO HAD A MAX PATH WIDTH OF 100 YARDS AND A LENGTH OF 1.5 MILES. THE MAX WIND SPEEDS WERE 95 MPH, AND THE TORNADO LIFTED 4 MILE SE OF MOUNT WASHI |
| Dec 11, 1:51 AM EST | TORNADO | 3 Se Mount Washington, KY | AN EF-1 TORNADO OCCURRED 3 SE MOUNT WASHINGTON, KY. THE TORNADO HAD A MAX PATH WIDTH OF 1.5 MILES AND A LENGTH OF 100 YARDS. THE MAX WIND SPEEDS WERE 95 MPH, AND THE TORNADO LIFTED 4 MILE SE OF MOUNT WASHINGTON, KY. PLEASE SEE ASSOCIATED PNS FOR MORE DETAILS R |
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 10, 7:21 PM EST | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 6.7 hours before the alert went out and 207 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.
435
WUUS53 KLMK 110641
SVRLMK
KYC029-179-215-110715-
/O.NEW.KLMK.SV.W.0101.211211T0641Z-211211T0715Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
141 AM EST Sat Dec 11 2021
The National Weather Service in Louisville has issued a
* Severe Thunderstorm Warning for...
Spencer County in central Kentucky...
North central Nelson County in central Kentucky...
Northeastern Bullitt County in central Kentucky...
* Until 215 AM EST.
* At 141 AM EST, a severe thunderstorm was located near
Shepherdsville, moving northeast at 55 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near...
Taylorsville around 200 AM EST.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM EST for central
Kentucky.
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 300 AM EST for central
Kentucky.
&&
LAT...LON 3807 8519 3800 8515 3791 8567 3801 8572
3808 8556 3812 8543 3813 8543 3814 8540
TIME...MOT...LOC 0641Z 247DEG 48KT 3797 8565
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
DM1 follow-up statement
968
WWUS53 KLMK 110710
SVSLMK
Severe Weather Statement
National Weather Service Louisville KY
210 AM EST Sat Dec 11 2021
KYC029-179-215-110719-
/O.EXP.KLMK.SV.W.0101.000000T0000Z-211211T0715Z/
Spencer KY-Nelson KY-Bullitt KY-
210 AM EST Sat Dec 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR SPENCER...NORTH CENTRAL NELSON
AND NORTHEASTERN BULLITT COUNTIES WILL EXPIRE AT 215 AM EST...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However small hail
and gusty winds are still possible with this thunderstorm.
A Tornado Watch remains in effect until 300 AM EST for central
Kentucky.
LAT...LON 3807 8519 3800 8515 3791 8567 3801 8572
3808 8556 3812 8543 3813 8543 3814 8540
TIME...MOT...LOC 0709Z 247DEG 48KT 3811 8523
$$
DMThe office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 8:20 PM EST | Special Weather Statement | LMK | Ohio | 55 min |
| Dec 10, 8:48 PM EST | Tornado Warning | LMK | Ohio | 57 min |
| Dec 10, 9:04 PM EST | Special Weather Statement | LMK | Breckinridge | 56 min |
| Dec 10, 9:24 PM EST | Severe Thunderstorm Warning | LMK | Breckinridge, Hancock | 36 min |
| Dec 10, 9:32 PM EST | Tornado Warning | LMK | Ohio | 30 min |
| Dec 10, 10:21 PM EST | Tornado Warning | LMK | Ohio | 39 min |
| Dec 10, 10:29 PM EST | Special Weather Statement | LMK | Breckinridge | 31 min |
| Dec 10, 10:37 PM EST | Tornado Warning | LMK | Breckinridge, Hardin, Meade | 17 min |
| Dec 10, 11:42 PM EST | Tornado Warning | LMK | Ohio | 63 min |
| Dec 11, 12:07 AM EST | Tornado Warning | LMK | Breckinridge, Grayson, Hancock | 53 min |
| Dec 11, 12:51 AM EST | Tornado Warning | LMK | Breckinridge, Hardin, Meade | 39 min |
| Dec 11, 1:29 AM EST | Special Weather Statement | LMK | Spencer | 16 min |
| Dec 11, 1:30 AM EST | Special Weather Statement | LMK | Bullitt | 15 min |
| Dec 11, 1:33 AM EST | Special Weather Statement | LMK | Henry, Jefferson, Oldham, Shelby, Trimble | 27 min |
| Dec 11, 1:36 AM EST | Tornado Warning | LMK | Logan, Simpson | 39 min |
| Dec 11, 1:44 AM EST | Tornado Warning | LMK | Bullitt, Nelson, Shelby, Spencer | 46 min |
| Dec 11, 1:58 AM EST | Tornado Warning | LMK | Butler, Edmonson, Logan, Simpson, Warren | 47 min |
| Dec 11, 2:27 AM EST | Tornado Warning | LMK | Barren, Butler, Edmonson, Hart, Metcalfe, Warren | 48 min |
| Dec 11, 2:28 AM EST | Tornado Warning | LMK | Franklin, Scott | 20 min |
| Dec 11, 2:45 AM EST | Special Weather Statement | LMK | Bullitt, Hardin, Larue, Nelson, Spencer | 30 min |
| Dec 11, 2:55 AM EST | Tornado Warning | LMK | Barren, Green, Hart, Larue, Marion, Metcalfe and 1 more | 50 min |
| Dec 11, 3:08 AM EST | Areal Flood Advisory | LMK | Breckinridge, Bullitt, Hardin, Jefferson, Meade | 115 min |
| Dec 11, 3:16 AM EST | Severe Thunderstorm Warning | LMK | Anderson, Franklin, Harrison, Henry, Nelson, Scott and 3 more | 29 min |
| Dec 11, 3:16 AM EST | Severe Thunderstorm Warning | LMK | Butler, Logan, Simpson, Warren | 44 min |
| Dec 11, 3:22 AM EST | Tornado Warning | LMK | Boyle, Casey, Larue, Lincoln, Marion, Mercer and 1 more | 38 min |
| Dec 11, 3:59 AM EST | Tornado Warning | LMK | Boyle, Casey, Garrard, Jessamine, Lincoln, Madison and 1 more | 46 min |
| Dec 11, 4:00 AM EST | Flash Flood Warning | LMK | Barren, Butler, Edmonson, Green, Hart, Logan and 3 more | 6 hr |
| Dec 11, 4:10 AM EST | Areal Flood Advisory | LMK | Anderson, Bullitt, Franklin, Harrison, Jefferson, Nelson and 3 more | 4 hr |
| Dec 11, 4:13 AM EST | Severe Thunderstorm Warning | LMK | Allen, Barren, Butler, Edmonson, Hart, Logan and 2 more | 32 min |
| Dec 11, 4:20 AM EST | Severe Thunderstorm Warning | LMK | Bourbon, Clark, Fayette, Harrison, Jessamine, Nicholas and 2 more | 25 min |
| Dec 11, 4:38 AM EST | Severe Thunderstorm Warning | LMK | Clark, Madison | 37 min |
| Dec 11, 4:43 AM EST | Areal Flood Advisory | LMK | Adair, Boyle, Casey, Garrard, Green, Lincoln and 3 more | 4 hr |
| Dec 11, 4:47 AM EST | Severe Thunderstorm Warning | LMK | Allen, Barren, Edmonson, Grayson, Green, Hardin and 7 more | 28 min |
| Dec 11, 4:56 AM EST | Flash Flood Warning | LMK | Breckinridge, Bullitt, Franklin, Grayson, Hancock, Hardin and 6 more | 3 hr |
| Dec 11, 5:01 AM EST | Tornado Warning | LMK | Garrard, Madison | 18 min |
| Dec 11, 5:18 AM EST | Severe Thunderstorm Warning | LMK | Adair, Allen, Barren, Casey, Cumberland, Green and 5 more | 42 min |
| Dec 11, 5:23 AM EST | Tornado Warning | LMK | Clark, Garrard, Lincoln, Madison | 37 min |
| Dec 11, 5:27 AM EST | Tornado Warning | LMK | Cumberland, Monroe | 33 min |
| Dec 11, 5:52 AM EST | Tornado Warning | LMK | Casey, Clinton, Cumberland, Russell | 23 min |
| Dec 11, 5:58 AM EST | Severe Thunderstorm Warning | LMK | Adair, Boyle, Casey, Clark, Fayette, Garrard and 6 more | 32 min |
| Dec 11, 5:58 AM EST | Severe Thunderstorm Warning | LMK | Adair, Boyle, Casey, Green, Lincoln, Marion and 2 more | 32 min |
| Dec 11, 6:28 AM EST | Severe Thunderstorm Warning | LMK | Clark, Garrard, Lincoln, Madison | 32 min |
| Dec 11, 8:42 AM EST | Areal Flood Warning | LMK | Garrard, Lincoln, Madison | 3 hr |
| Dec 11, 10:18 AM EST | Special Weather Statement | LMK | Anderson, Franklin, Henry, Nelson, Shelby, Spencer and 1 more | 27 min |
| Dec 11, 11:10 AM EST | 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.