Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 92, NWS Memphis, TN

April 9, 20215 counties in Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Apr 9, 2021, 7:45 PM CDT for 5 counties in Mississippi. It was in force for 45 min. 5 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: Apr 9, 2021, 7:45 PM CDT (00:45 UTC)
Expired: Apr 9, 2021, 8:30 PM CDT
In force: 45 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Tornado: Possible
Hail: 1.5 in
Wind: 60.0 mph

Counties Itawamba County, MS, Lee County, MS, Pontotoc County, MS, Prentiss County, MS, Union County, MS

The radar

The Columbus AFB radar (KGWX), 79 km from the middle of the area, began a volume at 00:45 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
Apr 9, 7:49 PM CDT	HAIL 1	New Harmony, MS
Apr 9, 7:50 PM CDT	HAIL 1	Blue Springs, MS
Apr 9, 7:52 PM CDT	HAIL 2.5	Blue Springs, MS
Apr 9, 8:10 PM CDT	HAIL 1	1 Se Kirkville, MS	QUARTER SIZE HAIL NEAR HIGHWAY 371 AND BURNS RD.
Apr 9, 8:13 PM CDT	HAIL 1.75	Sherman, MS

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
Apr 9, 3:42 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 0.8 hours before the alert went out and 112 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: 2032 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 326 m²/s²
0-3 km storm-relative helicity: 590 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

016 
WUUS54 KMEG 100045
SVRMEG
MSC057-081-115-117-145-100130-
/O.NEW.KMEG.SV.W.0092.210410T0045Z-210410T0130Z/

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

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Eastern Union County in northeastern Mississippi...
  Northeastern Pontotoc County in northeastern Mississippi...
  Northwestern Itawamba County in northeastern Mississippi...
  Northern Lee County in northeastern Mississippi...
  Southwestern Prentiss County in northeastern Mississippi...

* Until 830 PM CDT.

* At 744 PM CDT, a severe thunderstorm was located near New Harmony,
  or 10 miles north of Trace State Park, moving northeast at 15 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Baldwyn, Saltillo, Guntown, New Harmony, Pratts Friendship, Blair,
  Sherman, Blue Springs, Graham, Jericho, Branyan, Ellistown,
  Kirkville, Jug Fork, Geeville, Wallerville, Chapelville, Alpine,
  Blackland and Birmingham.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3432 8897 3443 8897 3460 8879 3460 8872
      3466 8872 3468 8870 3442 8845
TIME...MOT...LOC 0044Z 240DEG 14KT 3441 8883 

TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
 
$$

2 follow-up statements

193 
WWUS54 KMEG 100053
SVSMEG

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

MSC057-081-115-117-145-100130-
/O.CON.KMEG.SV.W.0092.000000T0000Z-210410T0130Z/
Union MS-Pontotoc MS-Itawamba MS-Lee MS-Prentiss MS-
753 PM CDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR EASTERN UNION...NORTHEASTERN PONTOTOC...NORTHWESTERN ITAWAMBA...
NORTHERN LEE AND SOUTHWESTERN PRENTISS COUNTIES...

At 753 PM CDT, a severe thunderstorm was located near Blair, or 9
miles northwest of Tupelo, moving east at 15 mph.

HAZARD...Tennis ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Baldwyn, Saltillo, Guntown, New Harmony, Pratts Friendship, Blair,
Sherman, Blue Springs, Graham, Jericho, Branyan, Ellistown,
Kirkville, Jug Fork, Geeville, Chapelville, Alpine, Blackland,
Birmingham and Corrona.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.

&&

LAT...LON 3432 8897 3442 8895 3460 8879 3460 8872
      3466 8872 3468 8870 3442 8845
TIME...MOT...LOC 0053Z 254DEG 12KT 3439 8880 

TORNADO...POSSIBLE
HAIL...2.50IN
WIND...60MPH
 
$$

851 
WWUS54 KMEG 100126
SVSMEG

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

MSC057-081-115-117-145-100136-
/O.EXP.KMEG.SV.W.0092.000000T0000Z-210410T0130Z/
Union MS-Pontotoc MS-Itawamba MS-Lee MS-Prentiss MS-
826 PM CDT Fri Apr 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN UNION...NORTHEASTERN
PONTOTOC...NORTHWESTERN ITAWAMBA...NORTHERN LEE AND SOUTHWESTERN
PRENTISS COUNTIES WILL EXPIRE AT 830 PM CDT...
                
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.  However gusty
winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northeastern Mississippi.

LAT...LON 3432 8897 3442 8895 3460 8879 3460 8872
      3466 8872 3468 8870 3442 8845
TIME...MOT...LOC 0126Z 240DEG 14KT 3445 8867 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 7:14 PM CDT	Tornado Warning	MEG	Lee, Pontotoc, Union	31 min
Apr 9, 7:38 PM CDT	Special Weather Statement	MEG	Calhoun, Lafayette, Marshall, Yalobusha	52 min
Apr 9, 7:54 PM CDT	Flash Flood Warning	MEG	Lee, Pontotoc, Union	5 hr
Apr 9, 8:01 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Tishomingo	44 min
Apr 9, 8:09 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Prentiss, Tishomingo	25 min
Apr 9, 8:13 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Lee, Pontotoc	47 min
Apr 9, 8:31 PM CDT	Areal Flood Advisory	MEG	Itawamba, Lee, Prentiss	3 hr
Apr 9, 8:38 PM CDT	Areal Flood Advisory	MEG	Alcorn, Tippah, Tishomingo	3 hr
Apr 9, 8:38 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Monroe	52 min
Apr 9, 8:55 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Itawamba, Lee, Monroe, Pontotoc	50 min
Apr 9, 9:04 PM CDT	Areal Flood Advisory	MEG	Calhoun, Chickasaw, Lee, Pontotoc	3 hr
Apr 9, 9:08 PM CDT	Areal Flood Advisory	MEG	Lee, Pontotoc	28 min
Apr 9, 9:09 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Monroe	51 min
Apr 9, 9:36 PM CDT	Flash Flood Warning	MEG	Lee, Pontotoc	3 hr
Apr 10, 4:32 AM CDT	River Flood Warning	MEG	Lee	8 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.