Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 97, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Aug 26, 2021, 8:00 PM EDT for Jefferson County, Kentucky; Clark County, Indiana. It was in force for 30 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
- Aug 26, 2021, 8:00 PM EDT (00:00 UTC)
- Expired
- Aug 26, 2021, 8:30 PM EDT
- In force
- 30 min
- Issued by
- NWS Louisville, KY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Clark County, IN, Jefferson County, KY
The radar
The Louisville radar (KLVX), 35 km from the middle of the area, began a volume at 00:04 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 |
|---|---|---|---|
| Aug 26, 8:05 PM EDT | HAIL 1 | 1 Ne Louisville, KY | REPORT RELAYED VIA TWITTER. |
| Aug 26, 8:11 PM EDT | TSTM WND DMG | Louisville, KY | AROUND 12 TREES DOWN IN LOUISVILLE AND ONE STRUCTURE COLLAPSE. |
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 00:00Z, 0.0 hours before the alert went out and 214 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
- 1937 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
726
WUUS53 KLMK 270000
SVRLMK
INC019-KYC111-270030-
/O.NEW.KLMK.SV.W.0097.210827T0000Z-210827T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
800 PM EDT Thu Aug 26 2021
The National Weather Service in Louisville has issued a
* Severe Thunderstorm Warning for...
Southern Clark County in south central Indiana...
West central Jefferson County in central Kentucky...
* Until 830 PM EDT.
* At 800 PM EDT, a severe thunderstorm was located over Louisville,
and is nearly stationary.
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...
Louisville around 805 PM EDT.
Other locations in the path of this severe thunderstorm include
Shively, Audubon Park, West Buechel, Watterson Park, Lynnview, Seneca
Gardens, Parkway Village, Strathmoor Village, Kingsley and Poplar
Hills.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 3829 8568 3813 8564 3815 8590 3828 8581
3829 8580 3829 8579 3830 8579
TIME...MOT...LOC 0000Z 009DEG 1KT 3825 8575
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
EBW2 follow-up statements
116
WWUS53 KLMK 270018
SVSLMK
Severe Weather Statement
National Weather Service Louisville KY
818 PM EDT Thu Aug 26 2021
INC019-KYC111-270030-
/O.CON.KLMK.SV.W.0097.000000T0000Z-210827T0030Z/
Clark IN-Jefferson KY-
818 PM EDT Thu Aug 26 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR SOUTHERN CLARK AND WEST CENTRAL JEFFERSON COUNTIES...
At 818 PM EDT, a severe thunderstorm was located over Louisville, and
is nearly stationary.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Louisville, Shively, Audubon Park, West Buechel, Watterson Park,
Lynnview, Seneca Gardens, Parkway Village, Strathmoor Village,
Kingsley and Poplar Hills.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3829 8568 3817 8566 3818 8588 3828 8581
3829 8580 3829 8579 3830 8579
TIME...MOT...LOC 0018Z 009DEG 1KT 3824 8575
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
EBW830
WWUS53 KLMK 270027
SVSLMK
Severe Weather Statement
National Weather Service Louisville KY
827 PM EDT Thu Aug 26 2021
INC019-KYC111-270036-
/O.EXP.KLMK.SV.W.0097.000000T0000Z-210827T0030Z/
Clark IN-Jefferson KY-
827 PM EDT Thu Aug 26 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CLARK AND WEST
CENTRAL JEFFERSON COUNTIES WILL EXPIRE AT 830 PM EDT...
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 heavy
rain is still possible with this thunderstorm and may cause flash
flooding.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Louisville.
LAT...LON 3829 8568 3817 8566 3818 8588 3828 8581
3829 8580 3829 8579 3830 8579
TIME...MOT...LOC 0026Z 009DEG 1KT 3824 8575
$$
EBWThe office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 8:29 PM EDT | Flash Flood Warning | LMK | Jefferson | 2 hr |
| Aug 27, 12:53 PM EDT | Special Weather Statement | LMK | Ohio | 52 min |
| Aug 27, 1:31 PM EDT | Areal Flood Advisory | LMK | Butler, Edmonson, Grayson, Hart, Warren | 3 hr |
| Aug 27, 2:54 PM EDT | Areal Flood Advisory | LMK | Fayette | 2 hr |
| Aug 27, 3:06 PM EDT | Areal Flood Advisory | LMK | Adair, Casey, Taylor | 3 hr |
| Aug 27, 3:11 PM EDT | Special Weather Statement | LMK | Washington | 34 min |
| Aug 27, 3:15 PM EDT | Areal Flood Advisory | LMK | Jessamine, Mercer, Woodford | 3 hr |
| Aug 27, 3:28 PM EDT | Areal Flood Advisory | LMK | Madison | 3 hr |
| Aug 27, 3:41 PM EDT | Special Weather Statement | LMK | Mercer | 34 min |
| Aug 27, 3:45 PM EDT | Special Weather Statement | LMK | Anderson, Woodford | 15 min |
| Aug 27, 3:49 PM EDT | Special Weather Statement | LMK | Oldham | 26 min |
| Aug 27, 3:59 PM EDT | Special Weather Statement | LMK | Bourbon | 31 min |
| Aug 27, 4:07 PM EDT | Special Weather Statement | LMK | Franklin | 23 min |
| Aug 27, 4:17 PM EDT | Areal Flood Advisory | LMK | Bourbon, Clark, Fayette, Nicholas | 3 hr |
| Aug 27, 4:21 PM EDT | Areal Flood Advisory | LMK | Anderson, Franklin, Shelby | 3 hr |
| Aug 27, 4:25 PM EDT | Special Weather Statement | LMK | Lincoln | 35 min |
| Aug 27, 4:32 PM EDT | Areal Flood Advisory | LMK | Boyle, Garrard, Jessamine, Lincoln | 3 hr |
| Aug 27, 4:43 PM EDT | Special Weather Statement | LMK | Harrison | 17 min |
| Aug 27, 5:36 PM EDT | Areal Flood Advisory | LMK | Harrison, Scott | 114 min |
| Aug 26, 8:43 PM EDT | Special Weather Statement | LMK | Clark | 32 min |
| Aug 26, 10:07 PM EDT | Areal Flood Advisory | LMK | Clark, Floyd | 113 min |
| Aug 27, 3:53 PM EDT | Special Weather Statement | LMK | Crawford | 37 min |
| Aug 27, 4:16 PM EDT | Special Weather Statement | LMK | Orange | 29 min |
Nearby
Severe Thunderstorm Warnings in Kentucky, 2021Severe Thunderstorm Warnings in Indiana, 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.