Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS Memphis, TN

February 28, 2021Shelby County, Tipton County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Feb 28, 2021, 6:16 PM CST for Shelby County, Tipton County, Tennessee. It was in force for 28 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: Feb 28, 2021, 6:16 PM CST (00:16 UTC)
Expired: Feb 28, 2021, 6:44 PM CST
In force: 28 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Shelby County, TN, Tipton County, TN

The radar

The Memphis radar (KNQA), 16 km from the middle of the area, began a volume at 00:16 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
Feb 28, 6:17 PM CST	TSTM WND DMG	2 S Frayser, TN	* 1 INJ * LARGE TREE DOWN ON HOUSE AT BROWN AVENUE NEAR NORTH EVERGREEN. CHILD WAS RESCUED AFTER BEING TRAPPED. TIME IS RADAR ESTIMATED.

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
Feb 28, 2:22 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 0.3 hours before the alert went out and 51 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: 229 J/kg
Mixed-layer CIN: -269 J/kg
Mixed-layer LCL: 782 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: -399 m²/s²
0-3 km storm-relative helicity: -284 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.4

Open this sounding in Storm Lab

The text

As transmitted.

688 
WUUS54 KMEG 010016
SVRMEG
TNC157-167-010100-
/O.NEW.KMEG.SV.W.0008.210301T0016Z-210301T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
616 PM CST Sun Feb 28 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Southeastern Tipton County in western Tennessee...
  Northeastern Shelby County in western Tennessee...

* Until 700 PM CST.

* At 613 PM CST, a severe thunderstorm was located near Meeman Shelby
  Forest State Park, moving east at 35 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...
  Bartlett, Millington, Covington, Meeman Shelby Forest State Park,
  Memphis, Lakeland, Arlington, Munford, Brighton, Ellendale,
  Dixonville, Frayser, Tipton, Atoka, Barretville, Griffin Corner,
  Quito, Woodstock, Redwood and Rosemark.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CST for eastern
Arkansas...and western Tennessee.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.

&&

LAT...LON 3531 9011 3534 9011 3538 9008 3554 8963
      3525 8964 3516 9009 3519 9010 3521 9009
      3521 9007 3522 9007 3525 9009 3526 9011
      3530 9013
TIME...MOT...LOC 0013Z 251DEG 29KT 3528 9009 

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

MGW

1 follow-up statement

105 
WWUS54 KMEG 010044
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
644 PM CST Sun Feb 28 2021

TNC157-167-010054-
/O.CAN.KMEG.SV.W.0008.000000T0000Z-210301T0100Z/
Tipton TN-Shelby TN-
644 PM CST Sun Feb 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TIPTON AND
NORTHEASTERN SHELBY COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

A Tornado Watch remains in effect until 1000 PM CST for eastern
Arkansas...and western Tennessee.

LAT...LON 3531 9011 3534 9011 3538 9008 3554 8963
      3525 8964 3516 9009 3519 9010 3521 9009
      3521 9007 3522 9007 3525 9009 3526 9011
      3530 9013
TIME...MOT...LOC 0042Z 251DEG 29KT 3536 8979 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 6:00 PM CST	Flash Flood Warning	MEG	Lake, Obion	2 hr
Feb 28, 6:35 PM CST	Flash Flood Warning	MEG	Benton, Henry, Obion, Weakley	3 hr
Feb 28, 6:37 PM CST	Severe Thunderstorm Warning	MEG	Fayette, Haywood, Shelby, Tipton	23 min
Feb 28, 8:09 PM CST	Areal Flood Warning	MEG	Benton, Carroll, Chester, Crockett, Decatur, Fayette and 10 more	6 hr
Feb 28, 8:21 PM CST	Areal Flood Advisory	MEG	Benton, Carroll, Crockett, Dyer, Gibson, Haywood and 5 more	6 hr
Mar 1, 2:06 AM CST	Areal Flood Warning	MEG	Fayette, Shelby, Tipton	3 hr
Mar 1, 3:39 AM CST	River Flood Warning	MEG	Fayette, Shelby	16 hr
Mar 1, 2:56 PM CST	River Flood Advisory	MEG	Lauderdale, Tipton	5 hr
Mar 1, 3:09 PM CST	River Flood Advisory	MEG	Dyer, Lake, Lauderdale	4 hr

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.