Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 220, NWS Memphis, TN

December 29, 20216 counties in Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Dec 29, 2021, 4:53 PM CST for 6 counties in Mississippi. It was in force for 52 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: Dec 29, 2021, 4:53 PM CST (22:53 UTC)
Expired: Dec 29, 2021, 5:45 PM CST
In force: 52 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

Counties Calhoun County, MS, Chickasaw County, MS, Itawamba County, MS, Lee County, MS, Monroe County, MS, Pontotoc County, MS

The radar

The Columbus AFB radar (KGWX), 58 km from the middle of the area, began a volume at 22:57 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
Dec 29, 12:05 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.9 hours before the alert went out and 125 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: 1900 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 131 m²/s²
0-3 km storm-relative helicity: 106 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

560 
WUUS54 KMEG 292253
SVRMEG
MSC013-017-057-081-095-115-292345-
/O.NEW.KMEG.SV.W.0220.211229T2253Z-211229T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
453 PM CST Wed Dec 29 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Northern Chickasaw County in northeastern Mississippi...
  East central Calhoun County in northeastern Mississippi...
  Southern Pontotoc County in northeastern Mississippi...
  Southwestern Itawamba County in northeastern Mississippi...
  Lee County in northeastern Mississippi...
  Northwestern Monroe County in northeastern Mississippi...

* Until 545 PM CST.

* At 453 PM CST, a severe thunderstorm was located near Houlka, or 12
  miles northwest of Houston, moving northeast at 55 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Tupelo, Pontotoc, Verona, Okolona, Trace State Park, Tombigbee
  State Park, Saltillo, Shannon, Plantersville, Troy, Furrs, Houlka,
  Evergreen, Nettleton, New Houlka, Algoma, Thorn, Chiwapa,
  Mooreville and Eggville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM CST for northeastern
Mississippi.

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

A Tornado Watch remains in effect until 700 PM CST for northeastern
Mississippi.

&&

LAT...LON 3392 8917 3415 8920 3445 8857 3406 8842
TIME...MOT...LOC 2253Z 244DEG 48KT 3404 8914 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

SMW

3 follow-up statements

308 
WWUS54 KMEG 292311
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
511 PM CST Wed Dec 29 2021

MSC013-292320-
/O.CAN.KMEG.SV.W.0220.000000T0000Z-211229T2345Z/
Calhoun MS-
511 PM CST Wed Dec 29 2021

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

A Tornado Watch remains in effect until 700 PM CST for northeastern
Mississippi.

LAT...LON 3396 8902 3426 8895 3445 8857 3406 8842
TIME...MOT...LOC 2310Z 244DEG 48KT 3414 8889 

$$

MSC017-057-081-095-115-292345-
/O.CON.KMEG.SV.W.0220.000000T0000Z-211229T2345Z/
Chickasaw MS-Pontotoc MS-Itawamba MS-Lee MS-Monroe MS-
511 PM CST Wed Dec 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CST
FOR NORTHEASTERN CHICKASAW...SOUTHEASTERN PONTOTOC...SOUTHWESTERN
ITAWAMBA...LEE AND NORTHWESTERN MONROE COUNTIES...

At 510 PM CST, a severe thunderstorm was located over Troy, or 8
miles south of Trace State Park, 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...
Tupelo, Verona, Okolona, Trace State Park, Tombigbee State Park,
Saltillo, Shannon, Plantersville, Troy, Furrs, Evergreen, Nettleton,
Chiwapa, Mooreville, Eggville, Ballardsville, Leotis, Flowerdale, Old
Union and Beech Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM CST for northeastern
Mississippi.

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

&&

LAT...LON 3396 8902 3426 8895 3445 8857 3406 8842
TIME...MOT...LOC 2310Z 244DEG 48KT 3414 8889 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

SMW

584 
WWUS54 KMEG 292323
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
523 PM CST Wed Dec 29 2021

MSC115-292332-
/O.CAN.KMEG.SV.W.0220.000000T0000Z-211229T2345Z/
Pontotoc MS-
523 PM CST Wed Dec 29 2021

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

A Tornado Watch remains in effect until 700 PM CST for northeastern
Mississippi.

LAT...LON 3402 8884 3424 8876 3437 8854 3406 8842
TIME...MOT...LOC 2322Z 244DEG 48KT 3421 8871 

$$

MSC017-057-081-095-292345-
/O.CON.KMEG.SV.W.0220.000000T0000Z-211229T2345Z/
Chickasaw MS-Itawamba MS-Lee MS-Monroe MS-
523 PM CST Wed Dec 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CST
FOR NORTHEASTERN CHICKASAW...SOUTHWESTERN ITAWAMBA...SOUTHERN LEE AND
NORTHWESTERN MONROE COUNTIES...

At 522 PM CST, a severe thunderstorm was located over Verona, moving
northeast at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Tupelo, Verona, Tombigbee State Park, Shannon, Plantersville,
Evergreen, Nettleton, Skyline, Mooreville, Eggville, Ballardsville,
Dorsey, Leotis, Old Union and Richmond.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM CST for northeastern
Mississippi.

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

&&

LAT...LON 3402 8884 3424 8876 3437 8854 3406 8842
TIME...MOT...LOC 2322Z 244DEG 48KT 3421 8871 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

SMW

719 
WWUS54 KMEG 292337
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
537 PM CST Wed Dec 29 2021

MSC017-057-081-095-292346-
/O.EXP.KMEG.SV.W.0220.000000T0000Z-211229T2345Z/
Chickasaw MS-Itawamba MS-Lee MS-Monroe MS-
537 PM CST Wed Dec 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CHICKASAW...
SOUTHWESTERN ITAWAMBA...SOUTHERN LEE AND NORTHWESTERN MONROE COUNTIES
WILL EXPIRE AT 545 PM CST...
                
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.

A Tornado Watch remains in effect until 700 PM CST for northeastern
Mississippi.

LAT...LON 3402 8884 3424 8876 3437 8854 3406 8842
TIME...MOT...LOC 2336Z 244DEG 48KT 3428 8854 

$$

SMW

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 28, 9:46 PM CST	Areal Flood Advisory	MEG	Chickasaw, Itawamba, Monroe	3 hr
Dec 28, 10:22 PM CST	Special Weather Statement	MEG	Monroe	38 min
Dec 28, 10:37 PM CST	Flash Flood Warning	MEG	Monroe	3 hr
Dec 29, 9:00 AM CST	Areal Flood Advisory	MEG	Calhoun, Chickasaw, Lee, Pontotoc, Yalobusha	3 hr
Dec 29, 9:17 AM CST	Flash Flood Warning	MEG	Calhoun, Yalobusha	3 hr
Dec 29, 12:14 PM CST	Areal Flood Warning	MEG	Calhoun, Chickasaw, Lee, Pontotoc, Yalobusha	3 hr
Dec 29, 1:59 PM CST	Special Weather Statement	MEG	DeSoto	31 min
Dec 29, 4:36 PM CST	Special Weather Statement	MEG	Calhoun	24 min
Dec 29, 4:58 PM CST	Severe Thunderstorm Warning Considerable damage threat	MEG	Prentiss, Tishomingo	14 min
Dec 29, 5:02 PM CST	Areal Flood Advisory	MEG	Prentiss	2 hr
Dec 29, 5:06 PM CST	Tornado Warning	MEG	Calhoun, Chickasaw	39 min
Dec 29, 5:29 PM CST	Severe Thunderstorm Warning Considerable damage threat	MEG	Chickasaw, Itawamba, Monroe	46 min
Dec 29, 5:42 PM CST	Areal Flood Advisory	MEG	Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc	3 hr
Dec 29, 5:53 PM CST	Severe Thunderstorm Warning	MEG	Monroe	37 min

Nearby

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.