Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 6, NWS Louisville, KY

February 28, 2021Allen County, Barren County, Monroe County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Feb 28, 2021, 7:07 PM CST for Allen County, Barren County, Monroe County, Kentucky. It was in force for 38 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, 7:07 PM CST (01:07 UTC)
Expired
Feb 28, 2021, 7:45 PM CST
In force
38 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Allen County, KY, Barren County, KY, Monroe County, KY

The radar

The Nashville radar (KOHX), 68 km from the middle of the area, began a volume at 01:11 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Feb 28, 2:22 PM CSTTornado WatchSPC8 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 1.1 hours before the alert went out and 81 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 00:00Z on 2021-03-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 419 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 00:00Z on 2021-03-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 220 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
419 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
979 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
220 m²/s²
0-3 km storm-relative helicity
278 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.5

Open this sounding in Storm Lab

The text

As transmitted.

806 
WUUS53 KLMK 010107
SVRLMK
KYC003-009-171-010145-
/O.NEW.KLMK.SV.W.0006.210301T0107Z-210301T0145Z/

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

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  Western Monroe County in south central Kentucky...
  Allen County in south central Kentucky...
  Southeastern Barren County in south central Kentucky...

* Until 745 PM CST.

* At 707 PM CST, a severe thunderstorm was located 7 miles southwest
  of Scottsville, moving east at 50 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.

* Locations impacted include...
  Scottsville, Gamaliel, Fountain Run, Oak Forest, Gum Tree, West
  Fork, Maynard, Clare, Austin and Nobob.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CST for south central
Kentucky.

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

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 3665 8639 3677 8640 3691 8580 3676 8571
      3662 8581
TIME...MOT...LOC 0107Z 262DEG 44KT 3669 8630 

HAIL...1.00IN
WIND...60MPH
 
$$

RJS
2 follow-up statements
155 
WWUS53 KLMK 010139
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
739 PM CST Sun Feb 28 2021

KYC003-009-171-010145-
/O.CON.KLMK.SV.W.0006.000000T0000Z-210301T0145Z/
Monroe KY-Allen KY-Barren KY-
739 PM CST Sun Feb 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CST
FOR WESTERN MONROE...SOUTHEASTERN ALLEN AND SOUTHEASTERN BARREN
COUNTIES...

At 738 PM CST, severe thunderstorms were located from 10 miles south 
of Glasgow to 6 miles west of Tompkinsville to 8 miles north of Red 
Boiling Springs, moving east at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Gamaliel, Fountain Run, Dry Fork, Bugtussle, Forkton, Gum Tree,
Freetown, Sulphur Lick, Nobob and Tracy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3664 8612 3688 8592 3691 8580 3676 8571
      3662 8581
TIME...MOT...LOC 0138Z 260DEG 50KT 3684 8587 3673 8581 3665 8586 

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

13
584 
WWUS53 KLMK 010147
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
747 PM CST Sun Feb 28 2021

KYC003-009-171-010157-
/O.EXP.KLMK.SV.W.0006.000000T0000Z-210301T0145Z/
Monroe KY-Allen KY-Barren KY-
747 PM CST Sun Feb 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN MONROE...SOUTHEASTERN
ALLEN AND SOUTHEASTERN BARREN COUNTIES HAS EXPIRED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been allowed to expire.  However gusty
winds and heavy rain are still possible with these thunderstorms.

A Tornado Watch remains in effect until 1000 PM CST for south central
Kentucky.

A Severe Thunderstorm Watch remains in effect until 1000 PM CST for
south central Kentucky.

LAT...LON 3664 8612 3688 8592 3691 8580 3676 8571
      3662 8581
TIME...MOT...LOC 0147Z 262DEG 44KT 3685 8581 3674 8575 3666 8580 

$$

RJS

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 28, 7:01 PM CSTFlash Flood WarningLMKAllen, Barren, Logan, Simpson, Warren6 hr
Feb 28, 7:20 PM CSTSpecial Weather StatementLMKSimpson25 min
Feb 28, 7:37 PM CSTSevere Thunderstorm WarningLMKCumberland, Monroe38 min
Feb 28, 7:59 PM CSTFlash Flood WarningLMKAdair, Clinton, Cumberland, Metcalfe, Monroe, Russell4 hr
Feb 28, 8:07 PM CSTSpecial Weather StatementLMKClinton, Cumberland, Russell23 min
Feb 28, 8:14 PM CSTSevere Thunderstorm WarningLMKAdair, Clinton, Russell16 min
Feb 28, 8:43 PM CSTAreal Flood WarningLMKBoyle, Casey, Garrard, Lincoln, Madison13 hr
Feb 28, 8:46 PM CSTAreal Flood WarningLMKBarren, Edmonson, Green, Hart, Larue, Marion and 3 more13 hr
Feb 28, 9:04 PM CSTAreal Flood WarningLMKAnderson, Bourbon, Clark, Fayette, Franklin, Garrard and 6 more9 hr
Feb 28, 9:21 PM CSTAreal Flood WarningLMKButler, Logan, Warren12 hr
Mar 1, 12:01 AM CSTAreal Flood WarningLMKAdair, Casey, Clinton, Cumberland, Metcalfe, Monroe and 1 more9 hr
Mar 1, 12:48 AM CSTAreal Flood WarningLMKAllen, Barren, Logan, Simpson, Warren9 hr
Mar 1, 2:52 AM CSTRiver Flood WarningLMKWarren44 hr
Mar 1, 4:04 AM CSTRiver Flood WarningLMKCumberland, Monroe9 hr
Mar 1, 8:55 AM CSTAreal Flood WarningLMKAdair, Allen, Barren, Boyle, Butler, Casey and 17 more12 hr
Mar 1, 10:31 AM CSTRiver Flood WarningLMKHancock21 days

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.