Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 5, NWS Louisville, KY

February 28, 20214 counties in Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Feb 28, 2021, 9:38 AM CST for 4 counties in Kentucky. It was in force for 22 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
Feb 28, 2021, 9:38 AM CST (15:38 UTC)
Expired
Feb 28, 2021, 10:00 AM CST
In force
22 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Allen County, KY, Logan County, KY, Simpson County, KY, Warren County, KY

The radar

The Nashville radar (KOHX), 73 km from the middle of the area, began a volume at 15:38 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 12:00Z, 3.6 hours before the alert went out and 86 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.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2021-02-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 50 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2021-02-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 480 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
50 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
695 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
480 m²/s²
0-3 km storm-relative helicity
488 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

884 
WUUS53 KLMK 281538
SVRLMK
KYC003-141-213-227-281600-
/O.NEW.KLMK.SV.W.0005.210228T1538Z-210228T1600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
938 AM CST Sun Feb 28 2021

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  East central Logan County in south central Kentucky...
  Northern Simpson County in south central Kentucky...
  Northwestern Allen County in south central Kentucky...
  Southern Warren County in south central Kentucky...

* Until 1000 AM CST.

* At 937 AM CST, a severe thunderstorm was located near Memphis
  Junction, moving east at 60 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Bowling Green, Scottsville, Crestmoor, Memphis Junction, Mount
  Victor, Woodburn, Hardcastle, Allen Springs, West Fork and Rich
  Pond.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3681 8670 3699 8667 3698 8616 3692 8617
      3691 8618 3691 8617 3675 8620
TIME...MOT...LOC 1537Z 278DEG 53KT 3690 8659 

HAIL...<.75IN
WIND...60MPH
 
$$

RAS
1 follow-up statement
321 
WWUS53 KLMK 281545
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
945 AM CST Sun Feb 28 2021

KYC141-213-281554-
/O.CAN.KLMK.SV.W.0005.000000T0000Z-210228T1600Z/
Logan KY-Simpson KY-
945 AM CST Sun Feb 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LOGAN AND
NORTHERN SIMPSON COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved into 
Warren County. Therefore, the warning for Logan and Simpson Counties 
has been cancelled. A Flood Warning remains in effect until 330 PM 
CST.

LAT...LON 3675 8623 3680 8640 3681 8641 3681 8642
      3686 8660 3698 8653 3697 8616 3692 8617
      3691 8618 3691 8617 3690 8617 3675 8620
TIME...MOT...LOC 1544Z 278DEG 53KT 3688 8646 

$$

KYC003-227-281600-
/O.CON.KLMK.SV.W.0005.000000T0000Z-210228T1600Z/
Allen KY-Warren KY-
945 AM CST Sun Feb 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM CST
FOR NORTHWESTERN ALLEN AND SOUTHERN WARREN COUNTIES...

At 944 AM CST, a severe thunderstorm was located over Three Springs,
moving east at 60 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Bowling Green, Scottsville, Crestmoor, Memphis Junction, Woodburn,
Hardcastle, Allen Springs, West Fork, Rich Pond and Greenhill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3675 8623 3680 8640 3681 8641 3681 8642
      3686 8660 3698 8653 3697 8616 3692 8617
      3691 8618 3691 8617 3690 8617 3675 8620
TIME...MOT...LOC 1544Z 278DEG 53KT 3688 8646 

HAIL...<.75IN
WIND...60MPH
 
$$

RAS

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 27, 9:16 PM CSTSpecial Weather StatementLMKClinton44 min
Feb 27, 10:01 PM CSTAreal Flood AdvisoryLMKClinton119 min
Feb 28, 4:20 AM CSTAreal Flood AdvisoryLMKBreckinridge, Bullitt, Hancock, Jefferson, Meade, Ohio and 2 more3 hr
Feb 28, 7:09 AM CSTAreal Flood WarningLMKBullitt, Jefferson, Shelby, Spencer4 hr
Feb 28, 7:30 AM CSTAreal Flood AdvisoryLMKBreckinridge, Hancock, Henry, Meade, Oldham, Trimble4 hr
Feb 28, 8:25 AM CSTAreal Flood WarningLMKFranklin, Harrison, Scott3 hr
Feb 28, 9:27 AM CSTAreal Flood WarningLMKButler, Edmonson, Logan, Simpson, Warren6 hr
Feb 28, 9:31 AM CSTSpecial Weather StatementLMKWarren29 min
Feb 28, 9:33 AM CSTRiver Flood WarningLMKHardin, Nelson5 days
Feb 28, 9:35 AM CSTRiver Flood AdvisoryLMKBullitt25 hr
Feb 28, 9:41 AM CSTRiver Flood WarningLMKWarren45 hr
Feb 28, 9:43 AM CSTRiver Flood AdvisoryLMKWarren17 hr
Feb 28, 9:48 AM CSTRiver Flood WarningLMKHart4 days
Feb 28, 9:49 AM CSTRiver Flood WarningLMKButler, Warren8 days
Feb 28, 9:51 AM CSTRiver Flood WarningLMKButler, Muhlenberg, Ohio11 days
Feb 28, 9:54 AM CSTRiver Flood WarningLMKOhio21 days
Feb 28, 9:55 AM CSTFlash Flood WarningLMKButler, Logan, Warren8 hr
Feb 28, 9:58 AM CSTRiver Flood WarningLMKFranklin42 hr
Feb 28, 9:59 AM CSTRiver Flood WarningLMKClark, Madison6 days
Feb 28, 10:00 AM CSTRiver Flood WarningLMKGarrard, Jessamine6 days
Feb 28, 10:01 AM CSTRiver Flood WarningLMKGarrard, Jessamine, Mercer6 days
Feb 28, 10:02 AM CSTRiver Flood WarningLMKAnderson, Franklin, Woodford7 days
Feb 28, 10:04 AM CSTRiver Flood WarningLMKCarroll, Henry, Owen8 days
Feb 28, 10:06 AM CSTAreal Flood WarningLMKBreckinridge, Bullitt, Grayson, Hardin, Nelson, Spencer6 hr
Feb 28, 10:06 AM CSTRiver Flood WarningLMKBourbon48 hr
Feb 28, 10:39 AM CSTAreal Flood WarningLMKBarren, Green, Hart, Metcalfe, Taylor6 hr
Feb 28, 10:47 AM CSTRiver Flood WarningLMKNicholas, Robertson21 days
Feb 28, 10:48 AM CSTRiver Flood WarningLMKHarrison26 hr
Feb 28, 10:55 AM CSTAreal Flood WarningLMKBreckinridge, Bullitt, Jefferson, Meade, Oldham, Shelby and 1 more6 hr
Feb 28, 11:20 AM CSTAreal Flood WarningLMKFranklin, Harrison, Scott, Shelby6 hr
Feb 28, 1:15 PM CSTSpecial Weather StatementLMKLogan30 min
Feb 28, 2:23 PM CSTSpecial Weather StatementLMKBarren37 min
Feb 28, 2:43 PM CSTFlash Flood WarningLMKBoyle, Casey, Garrard, Lincoln, Madison6 hr
Feb 28, 2:47 PM CSTFlash Flood WarningLMKBarren, Edmonson, Green, Hart, Larue, Marion and 3 more6 hr
Feb 28, 4:20 PM CSTAreal Flood WarningLMKAdair, Allen, Barren, Casey, Clinton, Cumberland and 6 more6 hr
Feb 28, 5:07 PM CSTSpecial Weather StatementLMKRussell38 min
Feb 28, 5:19 PM CSTSpecial Weather StatementLMKHancock41 min
Feb 28, 5:40 PM CSTFlash Flood WarningLMKButler, Logan, Warren4 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.