Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 138, NWS Jackson, MS

May 4, 20214 counties in Mississippi; East Carroll Parish, Madison Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at May 4, 2021, 1:37 PM CDT for 4 counties in Mississippi; East Carroll Parish, Madison Parish, Louisiana. It was in force for 53 min. 8 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, 1:37 PM CDT (18:37 UTC)
Expired: May 4, 2021, 2:30 PM CDT
In force: 53 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Possible
Hail: 0.88 in
Wind: 70.0 mph

Counties East Carroll Parish, LA, Madison Parish, LA, Hinds County, MS, Issaquena County, MS, Warren County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 84 km from the middle of the area, began a volume at 18:41 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, 1:55 PM CDT	TSTM WND DMG	Tallulah, LA	SCATTERED TREES DOWN ACROSS TOWN.
May 4, 1:59 PM CDT	TORNADO	4 Sw Thomastown, LA	THIS TORNADO DEVELOPED SOUTHEAST OF TALLULAH AND SOUTH OF I-20 OVER OPEN FIELDS AND QUICKLY REACHED EF-1 INTENSITY AS IT OVERTURNED AN IRRIGATION PIVOT SOUTH OF LA HIGHWAY 602. IT CONTINUED EAST SOUTHEASTWARD SNAPPING SEVERAL TREE LIMBS AND SMALL TREES AND DAM
May 4, 2:12 PM CDT	TSTM WND DMG	2 Ese Redwood, MS	TREES AND LINES DOWN IN THE N PART OF THE COUNTY.
May 4, 2:15 PM CDT	TSTM WND DMG	1 Sw Culkin, MS	NUMEROUS TREES AND LINES DOWN ACROSS VICKSBURG AND EASTWARD ON BOTH SIDES OF I-20. SIG SWATH OF TREE DAMAGE NOTED BY EM. 7 HOMES HAD TREES DOWN ON THEM.
May 4, 2:22 PM CDT	TSTM WND DMG	Bovina, MS	MULTIPLE TREES DOWN.
May 4, 2:22 PM CDT	TORNADO	1 N Little Yazoo, MS	THE TORNADO BEGAN OFF HWY 49 ALONG FLETCHERS CHAPEL ROAD NEAR THE DOVER COMMUNITY. THE STORM TRACKED EAST ACROSS OLD DOVER AND PARADISE ROADS SNAPPING LARGE LIMBS AND UPROOTING TREES. THE STORM WAS MOST INTENSE ALONG MYRLEVILLE ROAD, WHERE WINDS ESTIMATED AT 8
May 4, 2:24 PM CDT	TORNADO	5 Wnw Brownsville, MS	THIS MESOVORTEX TORNADO BEGAN JUST PAST THE FARR ROAD LINE TO THE NORTHWEST OF BROWNSVILLE. THE TORNADO SURGED SOUTHEAST ALONG NORTH JOHN WARREN ROAD, ALEXANDER ROAD, COXS FERRY ROAD CAUSING TREE DAMAGE, INCLUDING LARGE LIMBS SNAPPED & UPROOTING TREES. MORE WI
May 4, 2:30 PM CDT	TSTM WND DMG	Mechanicsburg, MS	TREES WERE BLOCKING THE ROAD, DELAYING TRAFFIC IN BOTH DIRECTIONS.

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, 9:18 AM CDT	Tornado Watch	SPC	7 hr
May 4, 10:52 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 6.6 hours before the alert went out and 74 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: 2428 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 646 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 170 m²/s²
0-3 km storm-relative helicity: 235 m²/s²
Significant tornado parameter: 2.8
Supercell composite: 13.2

Open this sounding in Storm Lab

The text

As transmitted.

495 
WUUS54 KJAN 041837
SVRJAN
LAC035-065-MSC049-055-149-163-041930-
/O.NEW.KJAN.SV.W.0138.210504T1837Z-210504T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
137 PM CDT Tue May 4 2021

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Southeastern East Carroll Parish in northeastern Louisiana...
  Eastern Madison Parish in northeastern Louisiana...
  Warren County in west central Mississippi...
  Southwestern Yazoo County in central Mississippi...
  Northwestern Hinds County in central Mississippi...
  Southeastern Issaquena County in west central Mississippi...

* Until 230 PM CDT.

* At 137 PM CDT, severe thunderstorms were located along a line
  extending from near Lake Providence to near Tendal to near
  Crowville, moving east at 55 mph.

  HAZARD...70 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

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

* Severe thunderstorms will be near...
  Tallulah and Mansford around 145 PM CDT.
  Eagle Bend around 155 PM CDT.
  Afton around 200 PM CDT.
  Redwood around 205 PM CDT.
  Vicksburg, Le Tourneau, Oak Ridge and Flowers around 215 PM CDT.
  Youngton, Tinsley and Phoenix around 220 PM CDT.
  Little Yazoo around 225 PM CDT.
  Newman around 230 PM CDT.

Other locations impacted by these severe thunderstorms include Mound,
Satartia, Delta and Richmond.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A Tornado Watch remains in effect until 400 PM CDT for central
Mississippi. A Tornado Watch also remains in effect until 600 PM CDT
for northeastern Louisiana...and southwestern and west central
Mississippi.

LAT...LON 3267 9103 3266 9068 3278 9034 3258 9042
      3258 9045 3250 9045 3221 9056 3221 9073
      3222 9073 3221 9074 3220 9115 3221 9112
      3225 9113 3224 9121 3221 9124 3223 9128
      3220 9133
TIME...MOT...LOC 1837Z 268DEG 49KT 3276 9112 3247 9128 3217 9156 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...70MPH
 
$$

TW

2 follow-up statements

548 
WWUS54 KJAN 041852
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
152 PM CDT Tue May 4 2021

LAC035-065-MSC049-055-149-163-041930-
/O.CON.KJAN.SV.W.0138.000000T0000Z-210504T1930Z/
East Carroll LA-Madison LA-Warren MS-Yazoo MS-Hinds MS-Issaquena MS-
152 PM CDT Tue May 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT
FOR SOUTHEASTERN EAST CARROLL AND EASTERN MADISON PARISHES...
WARREN...SOUTHWESTERN YAZOO...NORTHWESTERN HINDS AND SOUTHEASTERN
ISSAQUENA COUNTIES...

At 152 PM CDT, severe thunderstorms were located along a line
extending from near Onward to near Mansford to 6 miles west of
Somerset, moving east at 55 mph.

These are very dangerous storms.

HAZARD...80 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

These severe storms will be near...
  Eagle Bend around 155 PM CDT.
  Redwood around 210 PM CDT.
  Oak Ridge and Flowers around 215 PM CDT.
  Vicksburg, Le Tourneau, Youngton and Tinsley around 220 PM CDT.
  Little Yazoo and Phoenix around 225 PM CDT.
  Newman around 235 PM CDT.

Other locations impacted by these severe thunderstorms include Mound,
Satartia, Delta and Richmond.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A Tornado Watch remains in effect until 400 PM CDT for central
Mississippi. A Tornado Watch also remains in effect until 600 PM CDT
for northeastern Louisiana...and southwestern and west central
Mississippi.

LAT...LON 3267 9103 3266 9068 3278 9034 3258 9042
      3258 9045 3250 9045 3221 9056 3221 9073
      3222 9073 3221 9074 3220 9115 3221 9112
      3225 9113 3224 9121 3221 9124 3223 9128
      3220 9133
TIME...MOT...LOC 1852Z 268DEG 49KT 3277 9091 3248 9107 3218 9135 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...80MPH
 
$$

TW

305 
WWUS54 KJAN 041918 RRA
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
218 PM CDT Tue May 4 2021

LAC035-041928-
/O.CAN.KJAN.SV.W.0138.000000T0000Z-210504T1930Z/
East Carroll LA-
218 PM CDT Tue May 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN EAST CARROLL
PARISH IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 400 PM CDT for central
Mississippi. A Tornado Watch also remains in effect until 600 PM CDT
for northeastern Louisiana...and southwestern and west central
Mississippi.

LAT...LON 3266 9084 3266 9068 3278 9034 3258 9042
      3258 9045 3250 9045 3221 9056 3221 9073
      3222 9073 3221 9074 3220 9106
TIME...MOT...LOC 1918Z 268DEG 49KT 3276 9048 3247 9064 3215 9090 

$$

LAC065-MSC049-055-149-163-041930-
/O.CON.KJAN.SV.W.0138.000000T0000Z-210504T1930Z/
Madison LA-Warren MS-Yazoo MS-Hinds MS-Issaquena MS-
218 PM CDT Tue May 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT
FOR EAST CENTRAL MADISON PARISH...WARREN...SOUTHWESTERN YAZOO...
NORTHWESTERN HINDS AND SOUTHEASTERN ISSAQUENA COUNTIES...

At 218 PM CDT, severe thunderstorms were located along a line
extending from near Tinsley to Youngton to near Yokena, moving east
at 55 mph.

These are very dangerous storms.

HAZARD...80 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

These severe storms will be near...
  Little Yazoo, Tinsley and Phoenix around 225 PM CDT.

Other locations impacted by these severe thunderstorms include
Satartia and Delta.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A Tornado Watch remains in effect until 400 PM CDT for central
Mississippi. A Tornado Watch also remains in effect until 600 PM CDT
for northeastern Louisiana...and southwestern and west central
Mississippi.

LAT...LON 3266 9084 3266 9068 3278 9034 3258 9042
      3258 9045 3250 9045 3221 9056 3221 9073
      3222 9073 3221 9074 3220 9106
TIME...MOT...LOC 1918Z 268DEG 49KT 3276 9048 3247 9064 3215 9090 

HAIL...0.88IN
WIND...80MPH
 
$$

TW

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 4, 3:50 AM CDT	Flash Flood Watch	JAN	Clarke, Copiah, Covington, Forrest, Franklin, Hinds and 13 more	18 hr
May 4, 7:28 AM CDT	Special Weather Statement	JAN	Clay	32 min
May 4, 7:58 AM CDT	Severe Thunderstorm Warning	JAN	Copiah, Hinds, Rankin, Simpson	62 min
May 4, 8:19 AM CDT	Tornado Warning	JAN	Copiah, Rankin, Simpson	56 min
May 4, 9:06 AM CDT	Tornado Warning	JAN	Rankin, Simpson	54 min
May 4, 9:29 AM CDT	Special Weather Statement	JAN	Clay	46 min
May 4, 9:48 AM CDT	Special Weather Statement	JAN	Grenada	27 min
May 4, 9:49 AM CDT	Special Weather Statement	JAN	Scott	26 min
May 4, 9:55 AM CDT	Special Weather Statement	JAN	Choctaw	35 min
May 4, 10:02 AM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Oktibbeha	43 min
May 4, 10:11 AM CDT	Special Weather Statement	JAN	Lowndes	34 min
May 4, 10:15 AM CDT	Flash Flood Warning	JAN	Clay, Webster	2 hr
May 4, 10:59 AM CDT	Special Weather Statement	JAN	Clay	31 min
May 4, 11:25 AM CDT	Special Weather Statement	JAN	Lowndes	20 min
May 4, 12:01 PM CDT	Special Weather Statement	JAN	Madison	44 min
May 4, 12:07 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Rankin	38 min
May 4, 12:18 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Washington	72 min
May 4, 12:30 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Washington	75 min
May 4, 12:40 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Madison	50 min
May 4, 12:42 PM CDT	Special Weather Statement	JAN	Copiah	48 min
May 4, 12:43 PM CDT	Special Weather Statement	JAN	Madison	47 min
May 4, 12:46 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Yazoo	44 min
May 4, 12:47 PM CDT	Severe Thunderstorm Warning	JAN	Copiah	43 min
May 4, 12:57 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena	76 min
May 4, 1:10 PM CDT	Severe Thunderstorm Warning	JAN	Leake	50 min
May 4, 1:16 PM CDT	Special Weather Statement	JAN	Grenada	29 min
May 4, 1:19 PM CDT	Severe Thunderstorm Warning	JAN	Leflore, Sunflower	59 min
May 4, 1:19 PM CDT	Severe Thunderstorm Warning	JAN	Rankin, Scott, Smith	41 min
May 4, 1:22 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys, Issaquena, Sharkey, Washington, Yazoo	71 min
May 4, 1:28 PM CDT	Special Weather Statement	JAN	Attala	47 min
May 4, 1:31 PM CDT	Severe Thunderstorm Warning	JAN	Rankin, Simpson	44 min
May 4, 1:37 PM CDT	Special Weather Statement	JAN	Carroll, Montgomery	23 min
May 4, 1:44 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Grenada, Montgomery	75 min
May 4, 1:52 PM CDT	Tornado Warning	JAN	Rankin, Scott, Smith	23 min
May 4, 1:57 PM CDT	Severe Thunderstorm Warning	JAN	Adams, Claiborne, Copiah, Franklin, Hinds, Jefferson and 1 more	78 min
May 4, 2:00 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Neshoba	45 min
May 4, 2:09 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Holmes, Leake, Madison, Rankin, Scott and 1 more	66 min
May 4, 2:12 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Hinds, Madison, Rankin, Scott, Simpson and 1 more	93 min
May 4, 2:12 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Carroll, Choctaw, Holmes, Montgomery	63 min
May 4, 2:18 PM CDT	Special Weather Statement	JAN	Clay	27 min
May 4, 2:22 PM CDT	Tornado Warning	JAN	Attala, Holmes, Madison, Yazoo	20 min
May 4, 2:29 PM CDT	Special Weather Statement	JAN	Winston	46 min
May 4, 2:29 PM CDT	Severe Thunderstorm Warning	JAN	Webster	61 min
May 4, 2:30 PM CDT	Severe Thunderstorm Warning	JAN	Webster	60 min
May 4, 2:33 PM CDT	Severe Thunderstorm Warning	JAN	Winston	42 min
May 4, 2:35 PM CDT	Tornado Warning Tornado observed	JAN	Hinds, Madison, Rankin	25 min
May 4, 2:40 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Franklin, Jefferson Davis, Lawrence, Lincoln, Simpson	80 min
May 4, 2:44 PM CDT	Severe Thunderstorm Warning	JAN	Newton, Scott, Smith	46 min
May 4, 2:53 PM CDT	Tornado Warning Tornado observed	JAN	Rankin, Scott, Smith	18 min
May 4, 3:02 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee	28 min
May 4, 3:03 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Oktibbeha, Winston	57 min
May 4, 3:08 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Neshoba	52 min
May 4, 3:09 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Smith	51 min
May 4, 3:09 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Newton, Scott, Simpson, Smith	81 min
May 4, 3:18 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Noxubee	42 min
May 4, 3:20 PM CDT	Tornado Warning Tornado observed	JAN	Leake, Neshoba, Newton, Scott	40 min
May 4, 3:32 PM CDT	Tornado Warning	JAN	Clarke, Jasper	29 min
May 4, 3:36 PM CDT	Severe Thunderstorm Warning	JAN	Lauderdale	54 min
May 4, 3:38 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis, Jones, Lamar, Lawrence, Lincoln and 1 more	82 min
May 4, 3:49 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes, Noxubee	29 min
May 4, 3:50 PM CDT	Severe Thunderstorm Warning	JAN	Clarke	55 min
May 4, 3:51 PM CDT	Areal Flood Warning	JAN	Washington	6 hr
May 4, 3:58 PM CDT	Severe Thunderstorm Warning	JAN	Kemper	32 min
May 4, 4:26 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Jones, Lamar, Marion	94 min
May 4, 11:57 AM CDT	Severe Thunderstorm Warning	JAN	Morehouse	78 min
May 4, 12:37 PM CDT	Flash Flood Warning	JAN	Morehouse, West Carroll	3 hr
May 4, 1:15 PM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Concordia, Franklin, Tensas	75 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2021 Severe Thunderstorm Warnings in Louisiana, 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.