Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 30, NWS Paducah, KY

May 4, 20215 counties in Kentucky

NWS Paducah, KY issued this severe thunderstorm warning at May 4, 2021, 4:08 AM CDT for 5 counties in Kentucky. It was in force for 52 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 4, 2021, 4:08 AM CDT (09:08 UTC)
Expired: May 4, 2021, 5:00 AM CDT
In force: 52 min
Issued by: NWS Paducah, KY
Area: Storm-based polygon
Tornado: Possible
Hail: 0.88 in
Wind: 60.0 mph

Counties Calloway County, KY, Christian County, KY, Lyon County, KY, Marshall County, KY, Trigg County, KY

The radar

The Ft Campbell radar (KHPX), 63 km from the middle of the area, began a volume at 09:12 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 4, 4:12 AM CDT	TSTM WND DMG	2 W Hazel, KY	NUMEROUS TREES DOWN FROM 2 MILES WEST OF HAZEL TO HAZEL. 2 HOUSES WITH TREES ON THEM.
May 4, 4:14 AM CDT	TSTM WND DMG	3 Ene Brewers, KY	LATE REPORT. SEVERAL TREES DOWN, ROOF BLOWN OF SHOP, HOME FLASHING AND ROOF DAMAGE. TIME ESTIMATED FROM RADAR.

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

The watch it was issued in

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

Issued	Product	Office	Lasted
May 4, 1:41 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 9.1 hours before the alert went out and 142 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: 2263 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1050 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 119 m²/s²
0-3 km storm-relative helicity: 193 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 7.6

Open this sounding in Storm Lab

The text

As transmitted.

258 
WUUS53 KPAH 040908
SVRPAH
KYC035-047-143-157-221-041000-
/O.NEW.KPAH.SV.W.0030.210504T0908Z-210504T1000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Paducah KY
408 AM CDT Tue May 4 2021

The National Weather Service in Paducah has issued a

* Severe Thunderstorm Warning for...
  Calloway County in western Kentucky...
  Southwestern Christian County in south central Kentucky...
  Marshall County in western Kentucky...
  Trigg County in western Kentucky...
  Southern Lyon County in western Kentucky...

* Until 500 AM CDT.

* At 408 AM CDT, severe thunderstorms were located along a line
  extending from near Reidland to 6 miles southeast of Lynnville,
  moving east at 50 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Murray, Benton, Cadiz, Land Between The Lakes Area, Canton,
  Rockcastle, Hardin, Hazel, New Concord, Linton, Kirksey, Brewers,
  Aurora, Harris Grove and Crossland.

This includes the following highways...
 Interstate 24 in Kentucky between Mile Markers 54 and 55, and
between Mile Markers 58 and 70.
 Interstate 69 in Kentucky between Mile Markers 35 and 47.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3650 8849 3693 8848 3698 8789 3695 8786
      3697 8777 3699 8774 3700 8766 3664 8766
      3663 8785 3667 8786 3668 8807 3654 8803
      3650 8805
TIME...MOT...LOC 0908Z 273DEG 44KT 3693 8848 3651 8847 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
 
$$

DWS

1 follow-up statement

613 
WWUS53 KPAH 040940
SVSPAH

Severe Weather Statement
National Weather Service Paducah KY
440 AM CDT Tue May 4 2021

KYC035-157-040948-
/O.CAN.KPAH.SV.W.0030.000000T0000Z-210504T1000Z/
Calloway KY-Marshall KY-
440 AM CDT Tue May 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR CALLOWAY AND MARSHALL COUNTIES
IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 AM CDT for
western and south central Kentucky.

LAT...LON 3666 8785 3667 8786 3668 8807 3672 8808
      3675 8811 3683 8814 3695 8820 3698 8789
      3695 8786 3697 8777 3699 8774 3700 8766
      3664 8766 3663 8785
TIME...MOT...LOC 0938Z 258DEG 41KT 3697 8801 3655 8801 

$$

KYC047-143-221-041000-
/O.CON.KPAH.SV.W.0030.000000T0000Z-210504T1000Z/
Christian KY-Trigg KY-Lyon KY-
440 AM CDT Tue May 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 AM CDT
FOR SOUTHWESTERN CHRISTIAN...TRIGG AND SOUTHERN LYON COUNTIES...

At 438 AM CDT, severe thunderstorms were located along a line
extending from 8 miles southeast of Eddyville to 8 miles northeast of
Paris Landing State Park, moving east at 45 mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Trained weather spotters. At 414 AM, several trees were 
         reported down in Calloway County near Hazel.

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

Locations impacted include...
Cadiz, Land Between The Lakes Area, Canton, Rockcastle and Linton. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This is a DANGEROUS SITUATION. These storms were producing wind 
damage across Calloway County earlier. SEEK SHELTER NOW inside a 
sturdy structure and stay away from windows.
 
&&

LAT...LON 3666 8785 3667 8786 3668 8807 3672 8808
      3675 8811 3683 8814 3695 8820 3698 8789
      3695 8786 3697 8777 3699 8774 3700 8766
      3664 8766 3663 8785
TIME...MOT...LOC 0938Z 258DEG 41KT 3697 8801 3655 8801 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
 
$$

York

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 11:14 PM CDT	Special Weather Statement	PAH	Henderson	31 min
May 3, 11:26 PM CDT	Special Weather Statement	PAH	Lyon	34 min
May 3, 11:39 PM CDT	Special Weather Statement	PAH	Union	51 min
May 4, 12:02 AM CDT	Special Weather Statement	PAH	Daviess	43 min
May 4, 1:05 AM CDT	Special Weather Statement	PAH	Caldwell	25 min
May 4, 1:10 AM CDT	Severe Thunderstorm Warning	PAH	Daviess	31 min
May 4, 1:23 AM CDT	Special Weather Statement	PAH	Hopkins	52 min
May 4, 2:00 AM CDT	Special Weather Statement	PAH	Christian, Muhlenberg	45 min
May 4, 2:02 AM CDT	Severe Thunderstorm Warning	PAH	Carlisle, Fulton, Graves, Hickman	43 min
May 4, 2:41 AM CDT	Special Weather Statement	PAH	Ballard, Caldwell, Livingston, Lyon, McCracken	64 min
May 4, 2:50 AM CDT	Severe Thunderstorm Warning	PAH	Fulton, Hickman	55 min
May 4, 2:51 AM CDT	Special Weather Statement	PAH	Christian, Muhlenberg	69 min
May 4, 3:05 AM CDT	Flash Flood Warning	PAH	Christian, Muhlenberg	7 hr
May 4, 3:10 AM CDT	Areal Flood Advisory	PAH	Carlisle, Fulton, Hickman	3 hr
May 4, 3:22 AM CDT	Special Weather Statement	PAH	Crittenden, Livingston	53 min
May 4, 3:35 AM CDT	Severe Thunderstorm Warning	PAH	Carlisle, Fulton, Graves, Hickman	40 min
May 4, 3:54 AM CDT	Special Weather Statement	PAH	Daviess, McLean	51 min
May 4, 3:59 AM CDT	Tornado Warning	PAH	Calloway, Graves	31 min
May 4, 4:10 AM CDT	Areal Flood Advisory	PAH	McCracken	3 hr
May 4, 4:30 AM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Christian, Crittenden, Hopkins, Livingston, Lyon and 1 more	45 min
May 4, 4:45 AM CDT	Flash Flood Warning	PAH	Caldwell, Hopkins, Lyon, Muhlenberg	5 hr
May 4, 5:06 AM CDT	Severe Thunderstorm Warning	PAH	Christian, Hopkins, Muhlenberg, Todd	39 min
May 4, 5:14 AM CDT	Tornado Warning	PAH	Christian, Muhlenberg, Todd	21 min
May 4, 9:40 AM CDT	Areal Flood Warning	PAH	Christian, Hopkins, Muhlenberg, Todd	110 min
May 4, 10:01 AM CDT	River Flood Warning	PAH	Muhlenberg	6 days

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.