Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 22, NWS Louisville, KY

May 3, 2021Cumberland County, Monroe County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at May 3, 2021, 8:00 AM CDT for Cumberland County, Monroe County, Kentucky. 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: May 3, 2021, 8:00 AM CDT (13:00 UTC)
Expired: May 3, 2021, 8:30 AM CDT
In force: 30 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Cumberland County, KY, Monroe County, KY

The radar

The Nashville radar (KOHX), 99 km from the middle of the area, began a volume at 13:00 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
May 3, 8:08 AM CDT	TORNADO	Tompkinsville, KY	DELAYED REPORT...STORM DAMAGE SURVEY FOUND AN EF1 TORNADO WITH PEAK WINDS OF 95 MPH. MAXIMUM WIDTH WAS 60 YARDS AND WAS ON THE GROUND FOR A HALF MILE. SEVERAL TREES UPROOTED AND SOME ROOF DAMAGE AS WELL AS POWER OUTAGES.
May 3, 8:09 AM CDT	TSTM WND DMG	2 Ene Tompkinsville, KY	MULTIPLE REPORTS OF NUMEROUS TREES DOWN AS WELL AS STRUCTURAL DAMAGE IN TOMPKINSVILLE ALONG WITH POWER OUTAGES. LOCAL MEDIA REPORTS POSSIBLE TORNADO.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 1.0 hours before the alert went out and 109 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 85 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 658 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 381 m²/s²
0-3 km storm-relative helicity: 473 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

628 
WUUS53 KLMK 031300
SVRLMK
KYC057-171-031330-
/O.NEW.KLMK.SV.W.0022.210503T1300Z-210503T1330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
800 AM CDT Mon May 3 2021

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  Central Monroe County in south central Kentucky...
  West central Cumberland County in south central Kentucky...

* Until 830 AM CDT.

* At 800 AM CDT, a severe thunderstorm was located near
  Tompkinsville, moving northeast at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Tompkinsville, Gamaliel, Meshack, Persimmon, Forkton, Harlan
  Crossroads, Otia, Freetown, Rockbridge and Grandview.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3667 8587 3683 8562 3683 8560 3682 8560
      3682 8558 3684 8558 3685 8559 3686 8558
      3671 8546 3662 8575 3662 8583
TIME...MOT...LOC 1300Z 237DEG 37KT 3667 8578 

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

EBW

1 follow-up statement

604 
WWUS53 KLMK 031312
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
812 AM CDT Mon May 3 2021

KYC057-171-031330-
/O.CON.KLMK.SV.W.0022.000000T0000Z-210503T1330Z/
Monroe KY-Cumberland KY-
812 AM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 AM CDT
FOR EASTERN MONROE AND WEST CENTRAL CUMBERLAND COUNTIES...

At 812 AM CDT, a severe thunderstorm was located near Tompkinsville,
moving northeast at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Tompkinsville, Otia, Meshack, Grandview and Persimmon. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3672 8573 3683 8562 3683 8560 3682 8560
      3682 8558 3684 8558 3685 8559 3686 8558
      3671 8546 3665 8565 3667 8571
TIME...MOT...LOC 1312Z 237DEG 37KT 3674 8565 

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

EBW

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 7:44 AM CDT	Special Weather Statement	LMK	Monroe	46 min
May 3, 8:30 AM CDT	Tornado Warning	LMK	Adair, Cumberland, Russell	30 min
May 3, 8:59 AM CDT	Special Weather Statement	LMK	Russell	31 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2021 Every 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.