Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 93, NWS Memphis, TN

April 9, 2021Hardin County, McNairy County, Tennessee; Alcorn County, Tishomingo County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Apr 9, 2021, 8:01 PM CDT for Hardin County, McNairy County, Tennessee; Alcorn County, Tishomingo County, Mississippi. It was in force for 44 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: Apr 9, 2021, 8:01 PM CDT (01:01 UTC)
Expired: Apr 9, 2021, 8:45 PM CDT
In force: 44 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Alcorn County, MS, Tishomingo County, MS, Hardin County, TN, McNairy County, TN

The radar

The Columbus AFB radar (KGWX), 119 km from the middle of the area, began a volume at 01:00 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
Apr 9, 8:12 PM CDT	HAIL 1	Corinth, MS

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
Apr 9, 3:42 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 1.0 hours before the alert went out and 146 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: 2032 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 326 m²/s²
0-3 km storm-relative helicity: 590 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

318 
WUUS54 KMEG 100101
SVRMEG
MSC003-141-TNC071-109-100145-
/O.NEW.KMEG.SV.W.0093.210410T0101Z-210410T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
801 PM CDT Fri Apr 9 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Northwestern Tishomingo County in northeastern Mississippi...
  Alcorn County in northeastern Mississippi...
  Southeastern McNairy County in western Tennessee...
  Southwestern Hardin County in western Tennessee...

* Until 845 PM CDT.

* At 801 PM CDT, a severe thunderstorm was located near Hinkle, or
  near Corinth, moving northeast at 20 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...
  Corinth, Savannah, Pickwick Landing State Park, Adamsville, Glen,
  Pickwick Dam, Morris Chapel, Shiloh, Pineflat, Hinkle, Farmington,
  Crump, Eastview, Michie, Guys, Rienzi, Stantonville, Kossuth,
  Bruton Branch and Acton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3501 8820 3494 8817 3476 8853 3475 8857
      3488 8871 3535 8838 3501 8806
TIME...MOT...LOC 0101Z 229DEG 18KT 3486 8857 

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

SJM

2 follow-up statements

868 
WWUS54 KMEG 100122
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
822 PM CDT Fri Apr 9 2021

MSC003-141-TNC071-109-100145-
/O.CON.KMEG.SV.W.0093.000000T0000Z-210410T0145Z/
Tishomingo MS-Alcorn MS-McNairy TN-Hardin TN-
822 PM CDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR NORTHWESTERN TISHOMINGO...NORTHEASTERN ALCORN...SOUTHEASTERN
MCNAIRY AND SOUTHWESTERN HARDIN COUNTIES...

At 822 PM CDT, a severe thunderstorm was located over Corinth, moving
northeast at 20 mph.

HAZARD...Two inch hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Corinth, Savannah, Pickwick Landing State Park, Adamsville, Glen,
Pickwick Dam, Pineflat, Morris Chapel, Shiloh, Farmington, Crump,
Eastview, Michie, Guys, Stantonville, Doskie, Pebble Hill,
Strickland, Hamburg and Wenasoga.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3501 8820 3494 8817 3482 8842 3485 8856
      3494 8867 3535 8838 3501 8806
TIME...MOT...LOC 0122Z 229DEG 18KT 3493 8847 

HAIL...2.00IN
WIND...60MPH
 
$$

SJM

197 
WWUS54 KMEG 100135
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
835 PM CDT Fri Apr 9 2021

MSC003-141-TNC071-109-100145-
/O.EXP.KMEG.SV.W.0093.000000T0000Z-210410T0145Z/
Tishomingo MS-Alcorn MS-McNairy TN-Hardin TN-
835 PM CDT Fri Apr 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN TISHOMINGO...
NORTHEASTERN ALCORN...SOUTHEASTERN MCNAIRY AND SOUTHWESTERN HARDIN
COUNTIES WILL EXPIRE AT 845 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 heavy rain
is still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northeastern Mississippi...and western Tennessee.

LAT...LON 3501 8820 3494 8817 3482 8842 3485 8856
      3494 8867 3535 8838 3501 8806
TIME...MOT...LOC 0135Z 229DEG 18KT 3497 8842 

$$

SJM

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 7:05 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Hardeman, McNairy	40 min
Apr 9, 7:41 PM CDT	Areal Flood Advisory	MEG	Crockett, Haywood, Madison	2 hr
Apr 9, 7:41 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Hardin, Henderson, McNairy	17 min
Apr 9, 8:21 PM CDT	Areal Flood Advisory	MEG	Chester, Hardeman, McNairy	88 min
Apr 9, 8:38 PM CDT	Areal Flood Advisory	MEG	Hardin, McNairy	3 hr
Apr 9, 8:45 PM CDT	Severe Thunderstorm Warning	MEG	McNairy	17 min
Apr 9, 9:59 PM CDT	Special Weather Statement	MEG	Chester, McNairy	31 min
Apr 10, 12:38 PM CDT	River Flood Advisory	MEG	Dyer, Lake, Lauderdale	56 hr
Apr 9, 7:14 PM CDT	Tornado Warning	MEG	Lee, Pontotoc, Union	31 min
Apr 9, 7:38 PM CDT	Special Weather Statement	MEG	Calhoun, Lafayette, Marshall, Yalobusha	52 min
Apr 9, 7:45 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Pontotoc, Prentiss, Union	45 min
Apr 9, 7:54 PM CDT	Flash Flood Warning	MEG	Lee, Pontotoc, Union	5 hr
Apr 9, 8:09 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Prentiss, Tishomingo	25 min
Apr 9, 8:13 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Lee, Pontotoc	47 min
Apr 9, 8:31 PM CDT	Areal Flood Advisory	MEG	Itawamba, Lee, Prentiss	3 hr
Apr 9, 8:38 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Monroe	52 min
Apr 9, 8:55 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Itawamba, Lee, Monroe, Pontotoc	50 min
Apr 9, 9:04 PM CDT	Areal Flood Advisory	MEG	Calhoun, Chickasaw, Lee, Pontotoc	3 hr
Apr 9, 9:08 PM CDT	Areal Flood Advisory	MEG	Lee, Pontotoc	28 min
Apr 9, 9:09 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Monroe	51 min
Apr 9, 9:36 PM CDT	Flash Flood Warning	MEG	Lee, Pontotoc	3 hr
Apr 10, 4:32 AM CDT	River Flood Warning	MEG	Lee	8 hr

Nearby

Severe Thunderstorm Warnings in Tennessee, 2021 Severe Thunderstorm Warnings in Mississippi, 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.