Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 30, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at May 4, 2021, 9:18 PM EDT for Larue County, Marion County, Nelson County, Kentucky. It was in force for 27 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
- May 4, 2021, 9:18 PM EDT (01:18 UTC)
- Expired
- May 4, 2021, 9:45 PM EDT
- In force
- 27 min
- Issued by
- NWS Louisville, KY
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Larue County, KY, Marion County, KY, Nelson County, KY
The radar
The Louisville radar (KLVX), 64 km from the middle of the area, began a volume at 01:23 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, 1.3 hours before the alert went out and 189 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
- 539 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 815 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 244 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.0
The text
As transmitted.
957
WUUS53 KLMK 050118
SVRLMK
KYC123-155-179-050145-
/O.NEW.KLMK.SV.W.0030.210505T0118Z-210505T0145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
918 PM EDT Tue May 4 2021
The National Weather Service in Louisville has issued a
* Severe Thunderstorm Warning for...
South central Nelson County in central Kentucky...
East central Larue County in central Kentucky...
Northwestern Marion County in central Kentucky...
* Until 945 PM EDT.
* At 918 PM EDT, a severe thunderstorm was located 13 miles east of
Hodgenville, moving northeast at 25 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Lebanon, Loretto, Raywick, Saint Francis, Burkes Spring, Saint
Joseph, Attilla, Belltown, Saint Mary and Gleanings.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3756 8557 3767 8536 3765 8534 3765 8532
3753 8525 3748 8549 3748 8550 3747 8552
3747 8553
TIME...MOT...LOC 0118Z 244DEG 20KT 3752 8551
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH
$$
EBW2 follow-up statements
503
WWUS53 KLMK 050131
SVSLMK
Severe Weather Statement
National Weather Service Louisville KY
931 PM EDT Tue May 4 2021
KYC123-179-050140-
/O.CAN.KLMK.SV.W.0030.000000T0000Z-210505T0145Z/
Nelson KY-Larue KY-
931 PM EDT Tue May 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL NELSON AND EAST
CENTRAL LARUE COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3753 8549 3756 8551 3757 8551 3760 8549
3767 8536 3765 8534 3765 8532 3753 8525
3750 8548
TIME...MOT...LOC 0130Z 244DEG 20KT 3755 8543
$$
KYC155-050145-
/O.CON.KLMK.SV.W.0030.000000T0000Z-210505T0145Z/
Marion KY-
931 PM EDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM EDT
FOR NORTHWESTERN MARION COUNTY...
At 930 PM EDT, a severe thunderstorm was located 9 miles west of
Lebanon, moving northeast at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Lebanon, Loretto, Raywick, Saint Francis, Burkes Spring, Saint
Joseph, Belltown and Saint Mary.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3753 8549 3756 8551 3757 8551 3760 8549
3767 8536 3765 8534 3765 8532 3753 8525
3750 8548
TIME...MOT...LOC 0130Z 244DEG 20KT 3755 8543
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
EBW834
WWUS53 KLMK 050145
SVSLMK
Severe Weather Statement
National Weather Service Louisville KY
945 PM EDT Tue May 4 2021
KYC155-050155-
/O.EXP.KLMK.SV.W.0030.000000T0000Z-210505T0145Z/
Marion KY-
945 PM EDT Tue May 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MARION COUNTY HAS
EXPIRED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been allowed to expire.
Report severe weather to local law enforcement, post your report to
the National Weather Service Louisville Facebook page, or tweet your
report using hashtag L, M, K, spotter.
LAT...LON 3753 8549 3756 8551 3757 8551 3760 8549
3767 8536 3765 8534 3765 8532 3753 8525
3750 8548
TIME...MOT...LOC 0145Z 244DEG 20KT 3759 8533
$$
EBWThe office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 8:09 PM EDT | Special Weather Statement | LMK | Marion, Washington | 36 min |
| May 4, 8:10 PM EDT | Special Weather Statement | LMK | Logan | 35 min |
| May 4, 8:14 PM EDT | Tornado Warning | LMK | Marion, Washington | 31 min |
| May 4, 8:20 PM EDT | Special Weather Statement | LMK | Edmonson, Warren | 40 min |
| May 4, 8:30 PM EDT | Flash Flood Warning | LMK | Barren, Edmonson, Logan, Warren | 4 hr |
| May 4, 8:36 PM EDT | Severe Thunderstorm Warning | LMK | Washington | 24 min |
| May 4, 8:46 PM EDT | Special Weather Statement | LMK | Larue | 29 min |
| May 4, 8:55 PM EDT | Special Weather Statement | LMK | Mercer | 35 min |
| May 4, 9:02 PM EDT | Special Weather Statement | LMK | Butler | 13 min |
| May 4, 9:08 PM EDT | Special Weather Statement | LMK | Hart | 37 min |
| May 4, 9:14 PM EDT | Special Weather Statement | LMK | Marion | 31 min |
| May 4, 9:29 PM EDT | Special Weather Statement | LMK | Jessamine | 61 min |
| May 4, 9:45 PM EDT | Flash Flood Warning | LMK | Butler, Logan | 3 hr |
| May 4, 10:00 PM EDT | Special Weather Statement | LMK | Logan | 30 min |
| May 5, 12:36 AM EDT | Areal Flood Warning | LMK | Butler, Logan | 5 hr |
| May 5, 7:59 AM EDT | River Flood Advisory | LMK | Hart | 3 hr |
| May 5, 10:22 AM EDT | River Flood Advisory | LMK | Hardin, Nelson | 16 hr |
| May 5, 11:26 AM EDT | River Flood Warning | LMK | Hart | 7 hr |
| May 5, 4:08 PM EDT | River Flood Advisory | LMK | Bourbon | 10 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.