Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 30, NWS Memphis, TN

March 25, 20215 counties in Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Mar 25, 2021, 6:14 PM CDT for 5 counties in Tennessee. It was in force for 46 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, 6:14 PM CDT (23:14 UTC)
Expired: Mar 25, 2021, 7:00 PM CDT
In force: 46 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Chester County, TN, Decatur County, TN, Hardin County, TN, Henderson County, TN, McNairy County, TN

The radar

The Memphis radar (KNQA), 119 km from the middle of the area, began a volume at 23:13 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
Mar 25, 6:22 PM CDT	HAIL 1.25	Finger, TN

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
Mar 25, 3:48 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 11.2 hours before the alert went out and 141 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 539 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 264 m²/s²
0-3 km storm-relative helicity: 336 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

444 
WUUS54 KMEG 252314
SVRMEG
TNC023-039-071-077-109-260000-
/O.NEW.KMEG.SV.W.0030.210325T2314Z-210326T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
614 PM CDT Thu Mar 25 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Southern Henderson County in western Tennessee...
  Northern McNairy County in western Tennessee...
  Northwestern Hardin County in western Tennessee...
  Chester County in western Tennessee...
  Southwestern Decatur County in western Tennessee...

* Until 700 PM CDT.

* At 614 PM CDT, a severe thunderstorm was located over Masseyville,
  or near Chickasaw State Park, moving northeast at 45 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...
  Lexington, Henderson, Adamsville, Sardis, Silerton, Masseyville,
  Reagan, Jacks Creek, Darden, Mifflin, Robertson, McNairy, Scotts
  Hill, Saltillo, Finger, Milledgeville, Enville, Rock Hill, Hinkle
  and Hickory Corners.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3536 8815 3523 8878 3525 8878 3531 8880
      3533 8879 3535 8881 3539 8880 3572 8839
      3561 8818
TIME...MOT...LOC 2314Z 238DEG 40KT 3533 8872 

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

MJ

2 follow-up statements

628 
WWUS54 KMEG 252324
SVSMEG

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

TNC023-039-071-077-109-260000-
/O.CON.KMEG.SV.W.0030.000000T0000Z-210326T0000Z/
Henderson TN-McNairy TN-Hardin TN-Chester TN-Decatur TN-
624 PM CDT Thu Mar 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR SOUTHERN HENDERSON...NORTHERN MCNAIRY...NORTHWESTERN HARDIN...
CHESTER AND SOUTHWESTERN DECATUR COUNTIES...

At 624 PM CDT, a severe thunderstorm was located near Henderson,
moving northeast at 45 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Lexington, Henderson, Adamsville, Sardis, Reagan, Jacks Creek,
Darden, Mifflin, McNairy, Scotts Hill, Saltillo, Finger,
Milledgeville, Enville, Rock Hill, Hinkle, Hickory Corners, Roby,
Pleasant Grove and Cabo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3536 8815 3527 8871 3545 8870 3572 8839
      3561 8818
TIME...MOT...LOC 2324Z 238DEG 40KT 3539 8860 

HAIL...1.25IN
WIND...60MPH
 
$$

MJ

088 
WWUS54 KMEG 252359
SVSMEG

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

TNC023-039-071-077-109-260009-
/O.EXP.KMEG.SV.W.0030.000000T0000Z-210326T0000Z/
Henderson TN-McNairy TN-Hardin TN-Chester TN-Decatur TN-
659 PM CDT Thu Mar 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN HENDERSON...NORTHERN
MCNAIRY...NORTHWESTERN HARDIN...CHESTER AND SOUTHWESTERN DECATUR
COUNTIES WILL EXPIRE AT 700 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

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

LAT...LON 3536 8815 3527 8871 3545 8870 3572 8839
      3561 8818
TIME...MOT...LOC 2359Z 238DEG 40KT 3559 8821 

$$

MJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 25, 5:06 AM CDT	Areal Flood Advisory	MEG	Shelby	3 hr
Mar 25, 6:01 AM CDT	Areal Flood Advisory	MEG	Fayette, Shelby	3 hr
Mar 25, 6:28 AM CDT	Special Weather Statement	MEG	Fayette	32 min
Mar 25, 5:14 PM CDT	Special Weather Statement	MEG	Decatur	31 min
Mar 25, 5:16 PM CDT	Areal Flood Advisory	MEG	Decatur, Hardin, McNairy	3 hr
Mar 25, 5:26 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Hardeman	34 min
Mar 25, 5:56 PM CDT	Severe Thunderstorm Warning	MEG	Hardeman, McNairy	49 min
Mar 25, 6:28 PM CDT	Severe Thunderstorm Warning	MEG	Decatur, Hardin, McNairy	62 min
Mar 25, 6:49 PM CDT	Tornado Warning	MEG	Hardin	30 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 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.