Alert archive / Tennessee / Tornado Warnings in 2021

Tornado Warning 8, NWS Memphis, TN

March 25, 2021Hardin County, Tennessee

NWS Memphis, TN issued this tornado warning at Mar 25, 2021, 6:49 PM CDT for Hardin County, Tennessee. It was in force for 30 min. 1 report 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
Mar 25, 2021, 6:49 PM CDT (23:49 UTC)
Expired
Mar 25, 2021, 7:19 PM CDT
In force
30 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Hardin County, TN

The radar

The Columbus AFB radar (KGWX), 154 km from the middle of the area, began a volume at 23:47 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
Mar 25, 6:53 PM CDTHAIL 1Savannah, TNTIME 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.

IssuedProductOfficeLasted
Mar 25, 3:48 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.8 hours before the alert went out and 166 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 2021-03-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 60 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 2021-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 square meters per square second.1939587897117Sfc1 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
60 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
753 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

399 
WFUS54 KMEG 252349
TORMEG
TNC071-260030-
/O.NEW.KMEG.TO.W.0008.210325T2349Z-210326T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
649 PM CDT Thu Mar 25 2021

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Central Hardin County in western Tennessee...

* Until 730 PM CDT.
    
* At 649 PM CDT, doppler radar indicated a severe thunderstorm
  producing a tornado was located near Savannah, moving northeast at
  60 mph.

  HAZARD...Tornado and quarter size hail.

  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.

* Locations impacted include...
  Savannah, Adamsville, Olive Hill, Shiloh, Crump, Lowryville,
  Hamburg, Phillips, Pittsburg Landing, Center Star, Maddox, Hurley,
  Walkertown, Olivehill, Bucktown, Cerro Gordo and Shiloh National
  Military Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter 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 3509 8838 3523 8837 3539 8803 3537 8803
      3537 8801 3535 8800 3533 8802 3530 8802
      3530 8800 3529 8798 3509 8799
TIME...MOT...LOC 2349Z 245DEG 50KT 3518 8830 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

MJ
2 follow-up statements
632 
WWUS54 KMEG 252358
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
658 PM CDT Thu Mar 25 2021

TNC071-260030-
/O.CON.KMEG.TO.W.0008.000000T0000Z-210326T0030Z/
Hardin TN-
658 PM CDT Thu Mar 25 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
NORTHEASTERN HARDIN COUNTY...
    
At 658 PM CDT, doppler radar indicated a severe thunderstorm
producing a tornado was located over Savannah, moving east at 45 mph.

HAZARD...Tornado and quarter size hail.

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.

Locations impacted include...
Savannah, Olive Hill, Center Star, Walkertown, Olivehill and Maddox. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter 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 3515 8826 3521 8825 3537 8801 3535 8800
      3533 8802 3530 8802 3530 8800 3529 8798
      3514 8799
TIME...MOT...LOC 2358Z 250DEG 40KT 3519 8820 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

MJ
464 
WWUS54 KMEG 260019
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
719 PM CDT Thu Mar 25 2021

TNC071-260029-
/O.CAN.KMEG.TO.W.0008.000000T0000Z-210326T0030Z/
Hardin TN-
719 PM CDT Thu Mar 25 2021

...THE TORNADO WARNING FOR NORTHEASTERN HARDIN COUNTY IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.  However large hail and 
damaging winds are still possible with a second storm moving through 
the area.

A Tornado Watch remains in effect until 1100 PM CDT for western
Tennessee.

LAT...LON 3515 8826 3521 8825 3537 8801 3535 8800
      3533 8802 3530 8802 3530 8800 3529 8798
      3514 8799
TIME...MOT...LOC 0017Z 245DEG 50KT 3531 8788 

$$

MJ

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 25, 5:06 AM CDTAreal Flood AdvisoryMEGShelby3 hr
Mar 25, 6:01 AM CDTAreal Flood AdvisoryMEGFayette, Shelby3 hr
Mar 25, 6:28 AM CDTSpecial Weather StatementMEGFayette32 min
Mar 25, 5:14 PM CDTSpecial Weather StatementMEGDecatur31 min
Mar 25, 5:16 PM CDTAreal Flood AdvisoryMEGDecatur, Hardin, McNairy3 hr
Mar 25, 5:26 PM CDTSevere Thunderstorm WarningMEGFayette, Hardeman34 min
Mar 25, 5:56 PM CDTSevere Thunderstorm WarningMEGHardeman, McNairy49 min
Mar 25, 6:14 PM CDTSevere Thunderstorm WarningMEGChester, Decatur, Hardin, Henderson, McNairy46 min
Mar 25, 6:28 PM CDTSevere Thunderstorm WarningMEGDecatur, Hardin, McNairy62 min

Nearby

Tornado Warnings in Tennessee, 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.