Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 3, NWS Memphis, TN

January 25, 2021DeSoto County, Mississippi; Shelby County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Jan 25, 2021, 4:01 PM CST for DeSoto County, Mississippi; Shelby County, Tennessee. It was in force for 29 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, 4:01 PM CST (22:01 UTC)
Expired: Jan 25, 2021, 4:30 PM CST
In force: 29 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties DeSoto County, MS, Shelby County, TN

The radar

The Memphis radar (KNQA), 34 km from the middle of the area, began a volume at 22:00 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
Jan 25, 4:05 PM CST	TSTM WND DMG	3 Sse Southeast Memphis, TN	LARGE TREE BRANCHES DOWN ON HOME, CAUSING SIGNIFICANT ROOF DAMAGE. NEAR CRUMP AND ROSEWIND.
Jan 25, 4:25 PM CST	HAIL 2	2 S Germantown, TN	2 INCH HAIL REPORTED ON SHELBY DRIVE.

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, 10.0 hours before the alert went out and 28 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.

699 
WUUS54 KMEG 252201
SVRMEG
MSC033-TNC157-252230-
/O.NEW.KMEG.SV.W.0003.210125T2201Z-210125T2230Z/

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

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Northeastern DeSoto County in northwestern Mississippi...
  Southeastern Shelby County in western Tennessee...

* Until 430 PM CST.

* At 401 PM CST, a severe thunderstorm was located over Southeast
  Memphis, or near Olive Branch, moving northeast at 55 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...
  Southaven, Collierville, Germantown, Olive Branch, Horn Lake,
  Cordova, Memphis, Southeast Memphis, Whitehaven, Piperton, Parkway
  Village, White Station, Capleville, Jago and Plum Point.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3521 8978 3502 8964 3500 8964 3499 8972
      3497 8972 3490 8998 3507 9007
TIME...MOT...LOC 2201Z 244DEG 49KT 3504 8990 

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

SGW

2 follow-up statements

029 
WWUS54 KMEG 252214
SVSMEG

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

MSC033-252224-
/O.CAN.KMEG.SV.W.0003.000000T0000Z-210125T2230Z/
DeSoto MS-
414 PM CST Mon Jan 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DESOTO COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3511 8994 3521 8978 3502 8964 3502 8965
      3499 8974 3499 8985
TIME...MOT...LOC 2214Z 244DEG 49KT 3512 8970 

$$

TNC157-252230-
/O.CON.KMEG.SV.W.0003.000000T0000Z-210125T2230Z/
Shelby TN-
414 PM CST Mon Jan 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CST
FOR SOUTHEASTERN SHELBY COUNTY...

At 414 PM CST, a severe thunderstorm was located near Collierville,
moving northeast at 55 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Collierville, Germantown, Olive Branch, Cordova, Memphis, Southeast
Memphis, White Station and Parkway Village.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3511 8994 3521 8978 3502 8964 3502 8965
      3499 8974 3499 8985
TIME...MOT...LOC 2214Z 244DEG 49KT 3512 8970 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

SGW

902 
WWUS54 KMEG 252222
SVSMEG

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

TNC157-252232-
/O.EXP.KMEG.SV.W.0003.000000T0000Z-210125T2230Z/
Shelby TN-
422 PM CST Mon Jan 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SHELBY COUNTY
WILL EXPIRE AT 430 PM CST...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3511 8994 3521 8978 3502 8964 3502 8965
      3499 8974 3499 8985
TIME...MOT...LOC 2222Z 244DEG 49KT 3517 8957 

$$

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	Alcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 16 more	12 hr
Jan 25, 3:09 PM CST	Severe Thunderstorm Warning	MEG	DeSoto, Tunica	38 min
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, 3:39 PM CST	Severe Thunderstorm Warning	MEG	Fayette, Shelby	36 min
Jan 25, 4:18 PM CST	Severe Thunderstorm Warning	MEG	Fayette, Shelby	12 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2021 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.