Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 85, NWS Memphis, TN

April 9, 20214 counties in Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Apr 9, 2021, 6:28 PM CDT for 4 counties in Tennessee. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 9, 2021, 6:28 PM CDT (23:28 UTC)
Expired: Apr 9, 2021, 6:57 PM CDT
In force: 29 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Dyer County, TN, Gibson County, TN, Obion County, TN, Weakley County, TN

The radar

The Paducah radar (KPAH), 106 km from the middle of the area, began a volume at 23:31 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.

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 12:00Z, 11.5 hours before the alert went out and 167 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: 2139 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 141 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

426 
WUUS54 KMEG 092328
SVRMEG
TNC045-053-131-183-100015-
/O.NEW.KMEG.SV.W.0085.210409T2328Z-210410T0015Z/

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

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Southwestern Weakley County in western Tennessee...
  East central Dyer County in western Tennessee...
  Northern Gibson County in western Tennessee...
  Southeastern Obion County in western Tennessee...

* Until 715 PM CDT.

* At 628 PM CDT, a severe thunderstorm was located 7 miles east of
  Newbern, or 13 miles northwest of Trenton, moving northeast at 25
  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...
  Martin, Newbern, Dyer, Greenfield, Kenton, Rutherford, Bradford,
  Sharon, Eaton, Yorkville, Grizzard, Mount Pelia, Good Luck, Lapata,
  Central, Currie, Barrons Corner, Tyson Store, Edgewood and Sidonia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and 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 3640 8891 3612 8865 3596 8914 3597 8915
      3598 8917 3611 8927
TIME...MOT...LOC 2328Z 236DEG 20KT 3608 8914 

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

SJM

2 follow-up statements

467 
WWUS54 KMEG 092340
SVSMEG

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

TNC045-092350-
/O.CAN.KMEG.SV.W.0085.000000T0000Z-210410T0015Z/
Dyer TN-
640 PM CDT Fri Apr 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL DYER COUNTY IS
CANCELLED...
    
The severe 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 1100 PM CDT for
western Tennessee.

LAT...LON 3640 8891 3612 8865 3598 8908 3601 8911
      3606 8913 3616 8916 3620 8915
TIME...MOT...LOC 2340Z 236DEG 20KT 3612 8907 

$$

TNC053-131-183-100015-
/O.CON.KMEG.SV.W.0085.000000T0000Z-210410T0015Z/
Weakley TN-Gibson TN-Obion TN-
640 PM CDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR SOUTHWESTERN WEAKLEY...NORTHERN GIBSON AND SOUTHEASTERN OBION
COUNTIES...

At 640 PM CDT, a severe thunderstorm was located near Rutherford, or
12 miles northwest of Trenton, moving northeast at 25 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...
Martin, Dyer, Greenfield, Kenton, Rutherford, Bradford, Sharon,
Yorkville, Sidonia, Grizzard, Mount Pelia, Good Luck, Kimery, Crowley
Store, Currie, Gardner, Tilghman, Barrons Corner, Tyson Store and
Skullbone.

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 3640 8891 3612 8865 3598 8908 3601 8911
      3606 8913 3616 8916 3620 8915
TIME...MOT...LOC 2340Z 236DEG 20KT 3612 8907 

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

SJM

928 
WWUS54 KMEG 092357
SVSMEG

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

TNC053-131-183-100007-
/O.CAN.KMEG.SV.W.0085.000000T0000Z-210410T0015Z/
Weakley TN-Gibson TN-Obion TN-
657 PM CDT Fri Apr 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WEAKLEY...
NORTHERN GIBSON AND SOUTHEASTERN OBION COUNTIES IS CANCELLED...
                
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 has been cancelled.

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

LAT...LON 3640 8891 3612 8865 3598 8908 3601 8911
      3606 8913 3616 8916 3620 8915
TIME...MOT...LOC 2356Z 236DEG 20KT 3617 8897 

$$

SJM

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 5:12 PM CDT	Severe Thunderstorm Warning	MEG	Haywood, Lauderdale, Tipton	48 min
Apr 9, 5:17 PM CDT	Special Weather Statement	MEG	Fayette	28 min
Apr 9, 5:19 PM CDT	Special Weather Statement	MEG	Dyer	26 min
Apr 9, 5:27 PM CDT	Severe Thunderstorm Warning	MEG	Dyer, Lake, Obion	26 min
Apr 9, 5:34 PM CDT	Severe Thunderstorm Warning	MEG	Crockett, Haywood, Lauderdale, Madison, Tipton	41 min
Apr 9, 5:36 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Hardeman	39 min
Apr 9, 6:08 PM CDT	Severe Thunderstorm Warning	MEG	Crockett, Gibson, Haywood, Madison	52 min
Apr 9, 6:10 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Fayette, Hardeman, Haywood, Madison	50 min
Apr 9, 6:56 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Hardeman, McNairy, Madison	49 min
Apr 9, 6:56 PM CDT	Severe Thunderstorm Warning	MEG	Crockett, Gibson, Haywood, Madison	15 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.