Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 148, NWS Jackson, MS

May 4, 20216 counties in Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 4, 2021, 2:40 PM CDT for 6 counties in Mississippi. It was in force for 80 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
May 4, 2021, 2:40 PM CDT (19:40 UTC)
Expired
May 4, 2021, 4:00 PM CDT
In force
80 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Hail
0.88 in
Wind
70.0 mph

Counties Copiah County, MS, Franklin County, MS, Jefferson Davis County, MS, Lawrence County, MS, Lincoln County, MS, Simpson County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 86 km from the middle of the area, began a volume at 19:38 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

TimeReportWhereRemark
May 4, 3:00 PM CDTTSTM WND DMGGallman, MSSEVERAL TREES REPORTED DOWN IN GALLMAN.
May 4, 3:09 PM CDTTSTM WND DMGHopewell, MSTREE REPORTED DOWN IN HOPEWELL.
May 4, 3:35 PM CDTTSTM WND DMG2 Ssw Zetus, MSTREE DOWN ACROSS WATTS LANE REPORTED BY LINCOLN COUNTY EM.
May 4, 4:00 PM CDTTSTM WND DMGMonticello, MSA LARGE TREE FELL AND TOOK DOWN A POWER LINE AND TWO OTHER POWER POLES ASSOCIATED WITH MAIN FEEDER LINES WENT DOWN RESULTING IN POWER OUTAGES TO MOST OF MONTICELLO...REPORTED BY LAWRENCE COUNTY EM.
May 4, 4:00 PM CDTTSTM WND DMGMonticello, MSLARGE LIMB FELL AND WENT THROUGH THE ROOF OF A HOUSE...REPORTED BY LAWRENCE COUNTY EM.

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.

IssuedProductOfficeLasted
May 4, 9:18 AM CDTTornado WatchSPC7 hr
May 4, 10:52 AM CDTTornado WatchSPC7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 7.7 hours before the alert went out and 87 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-pSkew-T log-p diagram, Jackson, MS at 12:00Z on 2021-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2428 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2021-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 170 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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.

315 
WUUS54 KJAN 041940
SVRJAN
MSC029-037-065-077-085-127-042100-
/O.NEW.KJAN.SV.W.0148.210504T1940Z-210504T2100Z/

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

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Southern Simpson County in central Mississippi...
  Lincoln County in south central Mississippi...
  Lawrence County in south central Mississippi...
  Eastern Franklin County in southwestern Mississippi...
  Copiah County in central Mississippi...
  Western Jefferson Davis County in south central Mississippi...

* Until 400 PM CDT.

* At 240 PM CDT, severe thunderstorms were located along a line
  extending from near Carpenter to 8 miles northeast of Woodville,
  moving east at 60 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...
  Dentville around 250 PM CDT.
  Hazlehurst around 255 PM CDT.
  Crystal Springs and Gallman around 300 PM CDT.
  Hopewell around 310 PM CDT.
  Union around 315 PM CDT.
  Sanatorium around 335 PM CDT.

Other locations impacted by these severe thunderstorms include New
Hebron, Silver Creek, Beauregard and Georgetown.

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, south
central and southeastern Mississippi. A Tornado Watch also remains in
effect until 600 PM CDT for southwestern Mississippi.

LAT...LON 3161 9077 3161 9074 3173 9074 3196 9066
      3195 8969 3139 8989 3140 9004 3135 9004
      3135 9086
TIME...MOT...LOC 1940Z 267DEG 54KT 3197 9069 3119 9119 

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

TW
3 follow-up statements
886 
WWUS54 KJAN 042020
SVSJAN

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

MSC029-037-065-077-085-127-042100-
/O.CON.KJAN.SV.W.0148.000000T0000Z-210504T2100Z/
Simpson MS-Lincoln MS-Lawrence MS-Franklin MS-Copiah MS-
Jefferson Davis MS-
320 PM CDT Tue May 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR SOUTHERN SIMPSON...LINCOLN...LAWRENCE...EASTERN FRANKLIN...
SOUTHEASTERN COPIAH AND WESTERN JEFFERSON DAVIS COUNTIES...

At 320 PM CDT, severe thunderstorms were located along a line
extending from near Piney Woods to 7 miles southwest of Smithdale,
moving east at 60 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.

These severe storms will be near...
  Center Point around 330 PM CDT.
  Ruth around 350 PM CDT.
  Jayess and Topeka around 355 PM CDT.
  Tilton around 405 PM CDT.
  Oak Vale around 410 PM CDT.
  Society Hill around 415 PM CDT.

Other locations impacted by these severe thunderstorms include New
Hebron, Silver Creek, Beauregard and Georgetown.

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, south
central and southeastern Mississippi. A Tornado Watch also remains in
effect until 600 PM CDT for southwestern Mississippi.

LAT...LON 3195 9018 3195 8969 3139 8989 3140 9004
      3135 9004 3135 9086 3174 9055
TIME...MOT...LOC 2020Z 264DEG 51KT 3200 8998 3128 9078 

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

TW
706 
WWUS54 KJAN 042035
SVSJAN

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

MSC037-042045-
/O.CAN.KJAN.SV.W.0148.000000T0000Z-210504T2100Z/
Franklin MS-
335 PM CDT Tue May 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN FRANKLIN COUNTY 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 1000 PM CDT for south central
and southeastern Mississippi.

LAT...LON 3135 9063 3151 9063 3195 8996 3195 8969
      3139 8989 3140 9004 3135 9004
TIME...MOT...LOC 2035Z 278DEG 43KT 3201 8974 3129 9054 

$$

MSC029-065-077-085-127-042100-
/O.CON.KJAN.SV.W.0148.000000T0000Z-210504T2100Z/
Simpson MS-Lincoln MS-Lawrence MS-Copiah MS-Jefferson Davis MS-
335 PM CDT Tue May 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR SOUTHERN SIMPSON...LINCOLN...LAWRENCE...SOUTHEASTERN COPIAH AND
WESTERN JEFFERSON DAVIS COUNTIES...

At 335 PM CDT, severe thunderstorms were located along a line
extending from near Martinville to near Summit, moving east at 50
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.

These severe thunderstorms will remain over mainly rural areas of
southern Simpson, Lincoln, Lawrence, southeastern Copiah and western
Jefferson Davis Counties, including the following locations... New
Hebron and Silver Creek.

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 1000 PM CDT for south central
and southeastern Mississippi.

LAT...LON 3135 9063 3151 9063 3195 8996 3195 8969
      3139 8989 3140 9004 3135 9004
TIME...MOT...LOC 2035Z 278DEG 43KT 3201 8974 3129 9054 

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

TW
568 
WWUS54 KJAN 042041 RRA
SVSJAN

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

MSC029-042051-
/O.CAN.KJAN.SV.W.0148.000000T0000Z-210504T2100Z/
Copiah MS-
341 PM CDT Tue May 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN COPIAH COUNTY 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 1000 PM CDT for south central
and southeastern Mississippi.

LAT...LON 3135 9063 3147 9063 3195 8969 3139 8989
      3140 9004 3135 9004
TIME...MOT...LOC 2041Z 296DEG 31KT 3201 8964 3129 9044 

$$

MSC065-077-085-127-042100-
/O.CON.KJAN.SV.W.0148.000000T0000Z-210504T2100Z/
Simpson MS-Lincoln MS-Lawrence MS-Jefferson Davis MS-
341 PM CDT Tue May 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR SOUTHEASTERN SIMPSON...SOUTHERN LINCOLN...LAWRENCE AND WESTERN
JEFFERSON DAVIS COUNTIES...

At 341 PM CDT, severe thunderstorms were located along a line
extending from near White Oak to Summit, moving southeast at 35 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.

Locations impacted include...
Brookhaven, Magee, Monticello, Prentiss, Enterprise, Topeka, Bogue
Chitto, West Lincoln, Clem, Sanatorium, Robinwood, Jayess, Center
Point, Shivers, Sontag, Wanilla, Progress, Tilton, East Lincoln and
Ruth.

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 1000 PM CDT for south central
and southeastern Mississippi.

LAT...LON 3135 9063 3147 9063 3195 8969 3139 8989
      3140 9004 3135 9004
TIME...MOT...LOC 2041Z 296DEG 31KT 3201 8964 3129 9044 

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

TW

The office that day

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

IssuedProductOfficeCountiesLasted
May 4, 3:50 AM CDTFlash Flood WatchJANClarke, Copiah, Covington, Forrest, Franklin, Hinds and 13 more18 hr
May 4, 7:28 AM CDTSpecial Weather StatementJANClay32 min
May 4, 7:58 AM CDTSevere Thunderstorm WarningJANCopiah, Hinds, Rankin, Simpson62 min
May 4, 8:19 AM CDTTornado WarningJANCopiah, Rankin, Simpson56 min
May 4, 9:06 AM CDTTornado WarningJANRankin, Simpson54 min
May 4, 9:29 AM CDTSpecial Weather StatementJANClay46 min
May 4, 9:48 AM CDTSpecial Weather StatementJANGrenada27 min
May 4, 9:49 AM CDTSpecial Weather StatementJANScott26 min
May 4, 9:55 AM CDTSpecial Weather StatementJANChoctaw35 min
May 4, 10:02 AM CDTSevere Thunderstorm WarningJANChoctaw, Oktibbeha43 min
May 4, 10:11 AM CDTSpecial Weather StatementJANLowndes34 min
May 4, 10:15 AM CDTFlash Flood WarningJANClay, Webster2 hr
May 4, 10:59 AM CDTSpecial Weather StatementJANClay31 min
May 4, 11:25 AM CDTSpecial Weather StatementJANLowndes20 min
May 4, 12:01 PM CDTSpecial Weather StatementJANMadison44 min
May 4, 12:07 PM CDTSevere Thunderstorm WarningJANMadison, Rankin38 min
May 4, 12:18 PM CDTSevere Thunderstorm WarningJANBolivar, Washington72 min
May 4, 12:30 PM CDTSevere Thunderstorm WarningJANIssaquena, Washington75 min
May 4, 12:40 PM CDTSevere Thunderstorm WarningJANLeake, Madison50 min
May 4, 12:42 PM CDTSpecial Weather StatementJANCopiah48 min
May 4, 12:43 PM CDTSpecial Weather StatementJANMadison47 min
May 4, 12:46 PM CDTSevere Thunderstorm WarningJANMadison, Yazoo44 min
May 4, 12:47 PM CDTSevere Thunderstorm WarningJANCopiah43 min
May 4, 12:57 PM CDTSevere Thunderstorm WarningJANIssaquena76 min
May 4, 1:10 PM CDTSevere Thunderstorm WarningJANLeake50 min
May 4, 1:16 PM CDTSpecial Weather StatementJANGrenada29 min
May 4, 1:19 PM CDTSevere Thunderstorm WarningJANLeflore, Sunflower59 min
May 4, 1:19 PM CDTSevere Thunderstorm WarningJANRankin, Scott, Smith41 min
May 4, 1:22 PM CDTSevere Thunderstorm WarningJANHolmes, Humphreys, Issaquena, Sharkey, Washington, Yazoo71 min
May 4, 1:28 PM CDTSpecial Weather StatementJANAttala47 min
May 4, 1:31 PM CDTSevere Thunderstorm WarningJANRankin, Simpson44 min
May 4, 1:37 PM CDTSpecial Weather StatementJANCarroll, Montgomery23 min
May 4, 1:37 PM CDTSevere Thunderstorm WarningJANHinds, Issaquena, Warren, Yazoo53 min
May 4, 1:44 PM CDTSevere Thunderstorm WarningJANCarroll, Grenada, Montgomery75 min
May 4, 1:52 PM CDTTornado WarningJANRankin, Scott, Smith23 min
May 4, 1:57 PM CDTSevere Thunderstorm WarningJANAdams, Claiborne, Copiah, Franklin, Hinds, Jefferson and 1 more78 min
May 4, 2:00 PM CDTSevere Thunderstorm WarningJANLeake, Neshoba45 min
May 4, 2:09 PM CDTSevere Thunderstorm WarningJANAttala, Holmes, Leake, Madison, Rankin, Scott and 1 more66 min
May 4, 2:12 PM CDTSevere Thunderstorm WarningJANCopiah, Hinds, Madison, Rankin, Scott, Simpson and 1 more93 min
May 4, 2:12 PM CDTSevere Thunderstorm WarningJANAttala, Carroll, Choctaw, Holmes, Montgomery63 min
May 4, 2:18 PM CDTSpecial Weather StatementJANClay27 min
May 4, 2:22 PM CDTTornado WarningJANAttala, Holmes, Madison, Yazoo20 min
May 4, 2:29 PM CDTSpecial Weather StatementJANWinston46 min
May 4, 2:29 PM CDTSevere Thunderstorm WarningJANWebster61 min
May 4, 2:30 PM CDTSevere Thunderstorm WarningJANWebster60 min
May 4, 2:33 PM CDTSevere Thunderstorm WarningJANWinston42 min
May 4, 2:35 PM CDTTornado Warning Tornado observedJANHinds, Madison, Rankin25 min
May 4, 2:44 PM CDTSevere Thunderstorm WarningJANNewton, Scott, Smith46 min
May 4, 2:53 PM CDTTornado Warning Tornado observedJANRankin, Scott, Smith18 min
May 4, 3:02 PM CDTSevere Thunderstorm WarningJANNoxubee28 min
May 4, 3:03 PM CDTSevere Thunderstorm WarningJANChoctaw, Oktibbeha, Winston57 min
May 4, 3:08 PM CDTSevere Thunderstorm WarningJANLeake, Neshoba52 min
May 4, 3:09 PM CDTSevere Thunderstorm WarningJANJasper, Smith51 min
May 4, 3:09 PM CDTSevere Thunderstorm WarningJANJasper, Newton, Scott, Simpson, Smith81 min
May 4, 3:18 PM CDTSevere Thunderstorm WarningJANKemper, Noxubee42 min
May 4, 3:20 PM CDTTornado Warning Tornado observedJANLeake, Neshoba, Newton, Scott40 min
May 4, 3:32 PM CDTTornado WarningJANClarke, Jasper29 min
May 4, 3:36 PM CDTSevere Thunderstorm WarningJANLauderdale54 min
May 4, 3:38 PM CDTSevere Thunderstorm WarningJANCovington, Jefferson Davis, Jones, Lamar, Lawrence, Lincoln and 1 more82 min
May 4, 3:49 PM CDTSevere Thunderstorm WarningJANLowndes, Noxubee29 min
May 4, 3:50 PM CDTSevere Thunderstorm WarningJANClarke55 min
May 4, 3:51 PM CDTAreal Flood WarningJANWashington6 hr
May 4, 3:58 PM CDTSevere Thunderstorm WarningJANKemper32 min
May 4, 4:26 PM CDTSevere Thunderstorm WarningJANForrest, Jones, Lamar, Marion94 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2021Every 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.