Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 4, NWS Memphis, TN

January 25, 2021Fayette County, Shelby County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Jan 25, 2021, 4:18 PM CST for Fayette County, Shelby County, Tennessee. It was in force for 12 min. 2 reports 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: Jan 25, 2021, 4:18 PM CST (22:18 UTC)
Expired: Jan 25, 2021, 4:30 PM CST
In force: 12 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Fayette County, TN, Shelby County, TN

The radar

The Memphis radar (KNQA), 37 km from the middle of the area, began a volume at 22:22 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
Jan 25, 4:27 PM CST	TSTM WND DMG	6 Ne Collierville, TN	TREES AND TREE LIMBS DOWN AND DAMAGE TO A HOME ANTENNA NEAR THE INTERSECTION OF TN 196 AND LINDI DRIVE.
Jan 25, 4:29 PM CST	TORNADO	6 Ne Collierville, TN	A BRIEF EF-0 TORNADO DEVELOPED NEAR CHULAHOMA ROAD AND DUKE DRIVE. THE TORNADO MOVED NORTHEAST 1.2 MILES, DISSIPATING NEAR THE NORTHERN EXTENT OF CONEY ROAD AND CAUSING PREDOMINANTLY TREE DAMAGE. THE MAXIMUM PATH WIDTH WAS 50 YARDS WITH ESTIMATED MAXIMUM WINDS

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.3 hours before the alert went out and 52 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: 4 J/kg
Mixed-layer CIN: -260 J/kg
Mixed-layer LCL: 539 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 650 m²/s²
0-3 km storm-relative helicity: 696 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

As transmitted.

412 
WUUS54 KMEG 252218
SVRMEG
TNC047-157-252245-
/O.NEW.KMEG.SV.W.0004.210125T2218Z-210125T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
418 PM CST Mon Jan 25 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Central Fayette County in western Tennessee...
  East central Shelby County in western Tennessee...

* Until 445 PM CST.

* At 416 PM CST, a severe thunderstorm was located near Collierville,
  moving northeast at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Collierville, Lakeland, Arlington, Somerville, Eads, Warren, Macon,
  Oakland, Piperton, Rossville, Williston, Lenow, Yum Yum,
  Fisherville, Elba, Canadaville, Moorman, Lambert, Kirk and Hickory
  Withe.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3502 8965 3520 8979 3537 8937 3515 8922
TIME...MOT...LOC 2216Z 246DEG 41KT 3512 8970 

HAIL...<.75IN
WIND...60MPH
 
$$

SGW

1 follow-up statement

734 
WWUS54 KMEG 252230
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
430 PM CST Mon Jan 25 2021

TNC047-157-252240-
/O.CAN.KMEG.SV.W.0004.000000T0000Z-210125T2245Z/
Fayette TN-Shelby TN-
430 PM CST Mon Jan 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FAYETTE AND EAST
CENTRAL SHELBY 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.  However heavy rain is
still possible with this thunderstorm.

LAT...LON 3502 8965 3520 8979 3537 8937 3515 8922
TIME...MOT...LOC 2227Z 246DEG 41KT 3519 8952 

$$

SGW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 24, 6:14 PM CST	Dense Fog Advisory	MEG	Benton, Carroll, Chester, Crockett, Decatur, Dyer and 15 more	12 hr
Jan 25, 11:57 AM CST	Special Weather Statement	MEG	Lauderdale	33 min
Jan 25, 1:19 PM CST	River Flood Warning	MEG	Obion, Weakley	6 hr
Jan 25, 3:09 PM CST	Severe Thunderstorm Warning	MEG	Shelby	38 min
Jan 25, 3:39 PM CST	Severe Thunderstorm Warning	MEG	Fayette, Shelby	36 min
Jan 25, 4:01 PM CST	Severe Thunderstorm Warning	MEG	Shelby	29 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.