Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 114, NWS Memphis, TN

May 4, 20214 counties in Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at May 4, 2021, 1:06 PM CDT for 4 counties in Mississippi. It was in force for 24 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: May 4, 2021, 1:06 PM CDT (18:06 UTC)
Expired: May 4, 2021, 1:30 PM CDT
In force: 24 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Lafayette County, MS, Marshall County, MS, Panola County, MS, Tate County, MS

The radar

The Memphis radar (KNQA), 77 km from the middle of the area, began a volume at 18:06 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
May 4, 12:18 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 6.1 hours before the alert went out and 23 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: 10 J/kg
Mixed-layer CIN: -373 J/kg
Mixed-layer LCL: 1101 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 100 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

377 
WUUS54 KMEG 041806
SVRMEG
MSC071-093-107-137-041830-
/O.NEW.KMEG.SV.W.0114.210504T1806Z-210504T1830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
106 PM CDT Tue May 4 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Northwestern Lafayette County in northwestern Mississippi...
  Western Marshall County in northwestern Mississippi...
  Eastern Tate County in northwestern Mississippi...
  Northern Panola County in northwestern Mississippi...

* Until 130 PM CDT.

* At 105 PM CDT, a severe thunderstorm was located near Como, or 7
  miles south of Senatobia, moving northeast at 30 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Senatobia, Wall Doxey State Park, Sardis, Como, Barr, Pleasant
  Grove, Harmontown, Independence, Red Banks, Laws Hill, Marianna,
  Malone, Wakefield, Waterford, Aiken, Crossroad, Tyro, Watson,
  Chulahoma and Glenville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3452 9018 3477 8980 3477 8972 3482 8972
      3490 8961 3457 8933 3436 9007
TIME...MOT...LOC 1805Z 240DEG 28KT 3451 9001 

HAIL...1.00IN
WIND...<50MPH
 
$$

SWB

2 follow-up statements

706 
WWUS54 KMEG 041819
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
119 PM CDT Tue May 4 2021

MSC071-093-107-137-041830-
/O.CON.KMEG.SV.W.0114.000000T0000Z-210504T1830Z/
Lafayette MS-Marshall MS-Tate MS-Panola MS-
119 PM CDT Tue May 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM CDT
FOR NORTHWESTERN LAFAYETTE...WESTERN MARSHALL...EASTERN TATE AND
NORTHEASTERN PANOLA COUNTIES...

At 119 PM CDT, a severe thunderstorm was located near Como, or near
John W Kyle State Park, moving east at 30 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Senatobia, Wall Doxey State Park, Sardis, Como, Barr, Harmontown,
Independence, Red Banks, Laws Hill, Marianna, Malone, Wakefield,
Waterford, Aiken, Crossroad, Tyro, Watson, Chulahoma, Glenville and
Galena.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3454 9013 3477 8980 3477 8972 3482 8972
      3490 8961 3457 8933 3438 9002
TIME...MOT...LOC 1819Z 253DEG 28KT 3452 8986 

HAIL...1.00IN
WIND...<50MPH
 
$$

SGW

840 
WWUS54 KMEG 041829
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
129 PM CDT Tue May 4 2021

MSC071-093-107-137-041838-
/O.EXP.KMEG.SV.W.0114.000000T0000Z-210504T1830Z/
Lafayette MS-Marshall MS-Tate MS-Panola MS-
129 PM CDT Tue May 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LAFAYETTE...
WESTERN MARSHALL...EASTERN TATE AND NORTHEASTERN PANOLA COUNTIES WILL
EXPIRE AT 130 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However hail is 
still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 400 PM CDT for
northwestern Mississippi.

Remember, a Severe Thunderstorm Warning still remains in effect.

LAT...LON 3454 9013 3477 8980 3477 8972 3482 8972
      3490 8961 3457 8933 3438 9002
TIME...MOT...LOC 1828Z 240DEG 28KT 3455 8980 

$$

SWB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 4:47 AM CDT	Areal Flood Advisory	MEG	DeSoto	73 min
May 4, 7:15 AM CDT	Special Weather Statement	MEG	Monroe	30 min
May 4, 9:44 AM CDT	Special Weather Statement	MEG	Monroe	46 min
May 4, 9:48 AM CDT	Special Weather Statement	MEG	Calhoun, Chickasaw, Yalobusha	57 min
May 4, 10:44 AM CDT	Special Weather Statement	MEG	Calhoun, Chickasaw, Lee, Pontotoc	46 min
May 4, 10:52 AM CDT	Special Weather Statement	MEG	Monroe	23 min
May 4, 11:44 AM CDT	Special Weather Statement	MEG	Chickasaw	31 min
May 4, 12:24 PM CDT	Special Weather Statement	MEG	Chickasaw, Monroe	36 min
May 4, 12:36 PM CDT	Special Weather Statement	MEG	Panola, Tate	24 min
May 4, 1:27 PM CDT	Severe Thunderstorm Warning	MEG	Benton, Lafayette, Marshall, Panola, Tate, Union	33 min
May 4, 1:53 PM CDT	Special Weather Statement	MEG	Tallahatchie, Yalobusha	37 min
May 4, 2:02 PM CDT	Special Weather Statement	MEG	Benton, Union	28 min
May 4, 2:23 PM CDT	Special Weather Statement	MEG	Calhoun, Lafayette, Union, Yalobusha	22 min
May 4, 2:25 PM CDT	Areal Flood Advisory	MEG	Yalobusha	3 hr
May 4, 2:30 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Benton, Tippah	30 min
May 4, 2:37 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Pontotoc, Prentiss, Tishomingo, Union	26 min
May 4, 2:54 PM CDT	Areal Flood Advisory	MEG	Lafayette	3 hr
May 4, 2:58 PM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw	47 min
May 4, 3:00 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Benton, Tippah	19 min
May 4, 3:02 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Prentiss, Tishomingo, Union	16 min
May 4, 3:17 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee	28 min
May 4, 3:33 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Itawamba, Lee, Monroe	57 min
May 4, 3:58 PM CDT	Areal Flood Advisory	MEG	Lee	3 hr
May 4, 4:10 PM CDT	Special Weather Statement	MEG	DeSoto	35 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.