Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 134, NWS Jackson, MS

May 4, 2021Leflore County, Sunflower County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 4, 2021, 1:19 PM CDT for Leflore County, Sunflower County, Mississippi. It was in force for 59 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, 1:19 PM CDT (18:19 UTC)
Expired
May 4, 2021, 2:18 PM CDT
In force
59 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Leflore County, MS, Sunflower County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 142 km from the middle of the area, began a volume at 18:22 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, 1:32 PM CDTTSTM WND DMGBlaine, MSSEVERAL TREES REPORTED DOWN IN THE BLAINE AREA.
May 4, 1:33 PM CDTTSTM WND DMG1 Se Ruleville, MSPOWER POLES DOWN ALONG MCCORKLE RD.
May 4, 1:45 PM CDTTSTM WND GST 85Schlater, MSEXTENSIVE SWATH OF WIND DAMAGE OCCURRED ACROSS THE SCHLATER AREA. NUMEROUS TREES WERE DOWNED, 10 LIGHT POLES SNAPPED, HOMES DAMAGED BY FALLING TREES, AND SEVERAL IRRIGATION PIVOTS ROLLED.
May 4, 1:56 PM CDTTSTM WND DMG1 E Greenwood, MSSEVERAL LARGE LIMBS DOWN ACROSS TOWN, INCLUDING SEVERAL THAT FELL ON AND DAMAGED HOMES.

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, 10:52 AM CDTTornado WatchSPC7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 6.3 hours before the alert went out and 135 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.

018 
WUUS54 KJAN 041819
SVRJAN
MSC083-133-041930-
/O.NEW.KJAN.SV.W.0134.210504T1819Z-210504T1930Z/

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

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Sunflower County in northwestern Mississippi...
  Leflore County in north central Mississippi...

* Until 230 PM CDT.

* At 119 PM CDT, a severe thunderstorm was located near Indianola,
  moving east at 40 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Moorhead and Sunflower around 130 PM CDT.
  Blaine around 135 PM CDT.
  Itta Bena around 145 PM CDT.
  Quito around 150 PM CDT.
  Money around 200 PM CDT.
  Greenwood around 205 PM CDT.

Other locations impacted by this severe thunderstorm include
Schlater, Doddsville and Morgan City.

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 and
north central Mississippi. A Tornado Watch also remains in effect
until 600 PM CDT for central, north central and northwestern
Mississippi.

LAT...LON 3381 9018 3372 9031 3372 9014 3367 9012
      3347 9010 3342 9017 3333 9017 3337 9032
      3335 9028 3331 9029 3329 9045 3333 9056
      3327 9056 3327 9076 3362 9076 3362 9066
      3382 9066
TIME...MOT...LOC 1819Z 259DEG 33KT 3350 9065 

HAIL...1.00IN
WIND...60MPH
 
$$

CME
3 follow-up statements
890 
WWUS54 KJAN 041839
SVSJAN

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

MSC083-133-041930-
/O.CON.KJAN.SV.W.0134.000000T0000Z-210504T1930Z/
Sunflower MS-Leflore MS-
139 PM CDT Tue May 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT
FOR SOUTHEASTERN SUNFLOWER AND LEFLORE COUNTIES...

At 139 PM CDT, a severe thunderstorm was located near Sunflower, or
near Itta Bena, moving east at 40 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

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

This severe storm will be near...
  Itta Bena around 145 PM CDT.
  Money around 200 PM CDT.
  Greenwood around 205 PM CDT.

Other locations impacted by this severe thunderstorm include Schlater
and Morgan City.

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 and
north central Mississippi. A Tornado Watch also remains in effect
until 600 PM CDT for central, north central and northwestern
Mississippi.

LAT...LON 3381 9018 3372 9031 3372 9014 3367 9012
      3347 9010 3342 9017 3333 9017 3337 9032
      3335 9028 3331 9029 3329 9045 3333 9056
      3327 9056 3327 9076 3359 9051 3381 9044
TIME...MOT...LOC 1839Z 259DEG 33KT 3354 9043 

HAIL...<.75IN
WIND...70MPH
 
$$

CME
908 
WWUS54 KJAN 041853
SVSJAN

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

MSC133-041902-
/O.CAN.KJAN.SV.W.0134.000000T0000Z-210504T1930Z/
Sunflower MS-
153 PM CDT Tue May 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SUNFLOWER COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 400 PM CDT for central and
north central Mississippi. A Tornado Watch also remains in effect
until 600 PM CDT for central and north central Mississippi.

LAT...LON 3372 9031 3372 9014 3367 9012 3347 9010
      3342 9017 3333 9017 3337 9032 3335 9028
      3331 9029 3329 9045
TIME...MOT...LOC 1852Z 262DEG 39KT 3352 9021 

$$

MSC083-041930-
/O.CON.KJAN.SV.W.0134.000000T0000Z-210504T1930Z/
Leflore MS-
153 PM CDT Tue May 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT
FOR LEFLORE COUNTY...

At 152 PM CDT, a severe thunderstorm was located over Greenwood,
moving east at 45 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.

This severe thunderstorm will remain over mainly rural areas of
Leflore County, including the following locations... Morgan City.

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 and
north central Mississippi. A Tornado Watch also remains in effect
until 600 PM CDT for central and north central Mississippi.

LAT...LON 3372 9031 3372 9014 3367 9012 3347 9010
      3342 9017 3333 9017 3337 9032 3335 9028
      3331 9029 3329 9045
TIME...MOT...LOC 1852Z 262DEG 39KT 3352 9021 

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

CME
800 
WWUS54 KJAN 041918
SVSJAN

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

MSC083-041927-
/O.CAN.KJAN.SV.W.0134.000000T0000Z-210504T1930Z/
Leflore MS-
218 PM CDT Tue May 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR LEFLORE COUNTY IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 400 PM CDT for central and
north central Mississippi. A Tornado Watch also remains in effect
until 600 PM CDT for central and north central Mississippi.

LAT...LON 3372 9031 3372 9014 3367 9012 3347 9010
      3342 9017 3333 9017 3337 9032 3335 9028
      3331 9029 3329 9045
TIME...MOT...LOC 1916Z 259DEG 33KT 3357 8993 

$$

CME

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 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, 2:40 PM CDTSevere Thunderstorm WarningJANCopiah, Franklin, Jefferson Davis, Lawrence, Lincoln, Simpson80 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.