Alert archive / Kentucky / Tornado Warnings in 2021

Tornado Warning 5, NWS Paducah, KY

May 4, 2021Calloway County, Graves County, Kentucky

NWS Paducah, KY issued this tornado warning at May 4, 2021, 3:59 AM CDT for Calloway County, Graves County, Kentucky. It was in force for 31 min. 3 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, 3:59 AM CDT (08:59 UTC)
Expired
May 4, 2021, 4:30 AM CDT
In force
31 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Calloway County, KY, Graves County, KY

The radar

The Paducah radar (KPAH), 69 km from the middle of the area, began a volume at 08:59 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

TimeReportWhereRemark
May 4, 4:00 AM CDTTSTM WND DMG3 Sse Cuba, KYSHINGLES OFF ROOF AND OUTBUILDING DAMAGED NEAR TENNESSEE STATE LINE.
May 4, 4:03 AM CDTTSTM WND DMG2 W Lynnville, KYREPORT FROM MPING: TREES DOWN.
May 4, 4:12 AM CDTTSTM WND DMG2 W Hazel, KYNUMEROUS TREES DOWN FROM 2 MILES WEST OF HAZEL TO HAZEL. 2 HOUSES WITH TREES ON THEM.

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.

IssuedProductOfficeLasted
May 4, 1:41 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 9.0 hours before the alert went out and 161 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 2021-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2263 joules per kilogram.LCLEL10008507005003002001001 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 2021-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 square meters per square second.19395878Sfc1 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
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.

690 
WFUS53 KPAH 040859
TORPAH
KYC035-083-040930-
/O.NEW.KPAH.TO.W.0005.210504T0859Z-210504T0930Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Paducah KY
359 AM CDT Tue May 4 2021

The National Weather Service in Paducah has issued a

* Tornado Warning for...
  Calloway County in western Kentucky...
  Southeastern Graves County in western Kentucky...

* Until 430 AM CDT.
    
* At 359 AM CDT, a severe thunderstorm capable of producing a tornado
  was located near Lynnville, or 15 miles southwest of Murray, moving
  east at 60 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Murray around 415 AM CDT.

Other locations impacted by this tornadic thunderstorm include Harris
Grove, Hazel, New Concord and Crossland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3650 8865 3656 8862 3673 8810 3669 8807
      3654 8803 3650 8805
TIME...MOT...LOC 0859Z 255DEG 52KT 3651 8856 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

DWS
1 follow-up statement
639 
WWUS53 KPAH 040910
SVSPAH

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

KYC083-040920-
/O.CAN.KPAH.TO.W.0005.000000T0000Z-210504T0930Z/
Graves KY-
410 AM CDT Tue May 4 2021

...THE TORNADO WARNING FOR SOUTHEASTERN GRAVES COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has 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 Kentucky.

LAT...LON 3650 8849 3660 8849 3673 8810 3669 8807
      3666 8807 3664 8806 3654 8803 3650 8805
TIME...MOT...LOC 0910Z 260DEG 47KT 3655 8840 

$$

KYC035-040930-
/O.CON.KPAH.TO.W.0005.000000T0000Z-210504T0930Z/
Calloway KY-
410 AM CDT Tue May 4 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 AM CDT FOR CALLOWAY
COUNTY...
    
At 410 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Murray, moving east at 55 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Murray around 415 AM CDT.

Other locations impacted by this tornadic thunderstorm include Harris
Grove, Hazel, New Concord and Crossland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3650 8849 3660 8849 3673 8810 3669 8807
      3666 8807 3664 8806 3654 8803 3650 8805
TIME...MOT...LOC 0910Z 260DEG 47KT 3655 8840 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

DWS

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 11:14 PM CDTSpecial Weather StatementPAHHenderson31 min
May 3, 11:26 PM CDTSpecial Weather StatementPAHLyon34 min
May 3, 11:39 PM CDTSpecial Weather StatementPAHUnion51 min
May 4, 12:02 AM CDTSpecial Weather StatementPAHDaviess43 min
May 4, 1:05 AM CDTSpecial Weather StatementPAHCaldwell25 min
May 4, 1:10 AM CDTSevere Thunderstorm WarningPAHDaviess31 min
May 4, 1:23 AM CDTSpecial Weather StatementPAHHopkins52 min
May 4, 2:00 AM CDTSpecial Weather StatementPAHChristian, Muhlenberg45 min
May 4, 2:02 AM CDTSevere Thunderstorm WarningPAHCarlisle, Fulton, Graves, Hickman43 min
May 4, 2:41 AM CDTSpecial Weather StatementPAHBallard, Caldwell, Livingston, Lyon, McCracken64 min
May 4, 2:50 AM CDTSevere Thunderstorm WarningPAHFulton, Hickman55 min
May 4, 2:51 AM CDTSpecial Weather StatementPAHChristian, Muhlenberg69 min
May 4, 3:05 AM CDTFlash Flood WarningPAHChristian, Muhlenberg7 hr
May 4, 3:10 AM CDTAreal Flood AdvisoryPAHCarlisle, Fulton, Hickman3 hr
May 4, 3:22 AM CDTSpecial Weather StatementPAHCrittenden, Livingston53 min
May 4, 3:35 AM CDTSevere Thunderstorm WarningPAHCarlisle, Fulton, Graves, Hickman40 min
May 4, 3:54 AM CDTSpecial Weather StatementPAHDaviess, McLean51 min
May 4, 4:08 AM CDTSevere Thunderstorm WarningPAHCalloway, Christian, Lyon, Marshall, Trigg52 min
May 4, 4:10 AM CDTAreal Flood AdvisoryPAHMcCracken3 hr
May 4, 4:30 AM CDTSevere Thunderstorm WarningPAHCaldwell, Christian, Crittenden, Hopkins, Livingston, Lyon and 1 more45 min
May 4, 4:45 AM CDTFlash Flood WarningPAHCaldwell, Hopkins, Lyon, Muhlenberg5 hr
May 4, 5:06 AM CDTSevere Thunderstorm WarningPAHChristian, Hopkins, Muhlenberg, Todd39 min
May 4, 5:14 AM CDTTornado WarningPAHChristian, Muhlenberg, Todd21 min
May 4, 9:40 AM CDTAreal Flood WarningPAHChristian, Hopkins, Muhlenberg, Todd110 min
May 4, 10:01 AM CDTRiver Flood WarningPAHMuhlenberg6 days

Nearby

Tornado Warnings in Kentucky, 2021Every tornado warning in 2021Tornadoes 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.