Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 121, NWS Memphis, TN

May 4, 2021Itawamba County, Lee County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at May 4, 2021, 3:17 PM CDT for Itawamba County, Lee County, Mississippi. It was in force for 28 min. 4 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: May 4, 2021, 3:17 PM CDT (20:17 UTC)
Expired: May 4, 2021, 3:45 PM CDT
In force: 28 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Itawamba County, MS, Lee County, MS

The radar

The Columbus AFB radar (KGWX), 39 km from the middle of the area, began a volume at 20:19 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
May 4, 3:45 PM CDT	TSTM WND DMG	1 N Mantachie, MS	LARGE LIMBS AND SOME TREES DOWN ALONG CR363 NEAR COMMUNITY OF OZARK
May 4, 3:45 PM CDT	TSTM WND DMG	Fulton, MS	A FEW TREES DOWN IN FULTON.
May 4, 3:45 PM CDT	TSTM WND DMG	Fulton, MS	A FEW TREES DOWN IN FULTON. SOME TREES ON VEHICLES AND HOUSES.
May 4, 3:45 PM CDT	TSTM WND DMG	Mantachie, MS	A FEW TREES DOWN IN MANTACHIE.

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
May 4, 12:18 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 8.3 hours before the alert went out and 160 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.

128 
WUUS54 KMEG 042017
SVRMEG
MSC057-081-042045-
/O.NEW.KMEG.SV.W.0121.210504T2017Z-210504T2045Z/

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

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Itawamba County in northeastern Mississippi...
  Southeastern Lee County in northeastern Mississippi...

* Until 345 PM CDT.

* At 317 PM CDT, a severe thunderstorm was located near Mantachie, or
  near Fulton, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Fulton, Mantachie, Tremont, Fairview, New Salem, Evergreen, Clay,
  Abney, Eastman, Cardsville, Tilden, Mooreville, Eggville,
  Ballardsville, Bounds Crossroads, Dorsey, Jacinto, Cadamy and
  Richmond.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3416 8820 3413 8861 3435 8860 3442 8816
TIME...MOT...LOC 2017Z 261DEG 40KT 3426 8851 

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

SWB

1 follow-up statement

982 
WWUS54 KMEG 042037
SVSMEG

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

MSC057-081-042046-
/O.EXP.KMEG.SV.W.0121.000000T0000Z-210504T2045Z/
Itawamba MS-Lee MS-
337 PM CDT Tue May 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR ITAWAMBA AND SOUTHEASTERN LEE
COUNTIES WILL EXPIRE AT 345 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 700 PM CDT for
northeastern Mississippi.

LAT...LON 3416 8820 3413 8861 3435 8860 3442 8816
TIME...MOT...LOC 2036Z 261DEG 40KT 3429 8828 

$$

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, 1:06 PM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Marshall, 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, 3:33 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.