Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 24, NWS New Orleans, LA

April 7, 2021Amite County, Wilkinson County, Mississippi; East Feliciana Parish, West Feliciana Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Apr 7, 2021, 10:50 PM CDT for Amite County, Wilkinson County, Mississippi; East Feliciana Parish, West Feliciana Parish, Louisiana. It was in force for 70 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
Apr 7, 2021, 10:50 PM CDT (03:50 UTC)
Expired
Apr 8, 2021, 12:00 AM CDT
In force
70 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Possible
Hail
1.5 in
Wind
60.0 mph

Counties East Feliciana Parish, LA, West Feliciana Parish, LA, Amite County, MS, Wilkinson County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 3.8 hours before the alert went out and 152 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, Slidell Radar S, LA at 00:00Z on 2021-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1186 joules per kilogram.LCLEL10008507005003002001001 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, Slidell Radar S, LA at 00:00Z on 2021-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 square meters per square second.193958Sfc1 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
1186 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
722 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
175 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.8

Open this sounding in Storm Lab

The text

As transmitted.

780 
WUUS54 KLIX 080350
SVRLIX
LAC037-125-MSC005-157-080500-
/O.NEW.KLIX.SV.W.0024.210408T0350Z-210408T0500Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New Orleans LA
1050 PM CDT Wed Apr 7 2021

The National Weather Service in New Orleans has issued a

* Severe Thunderstorm Warning for...
  Northeastern West Feliciana Parish in southeastern Louisiana...
  Northeastern East Feliciana Parish in southeastern Louisiana...
  Southeastern Wilkinson County in southern Mississippi...
  Southwestern Amite County in southern Mississippi...

* Until midnight CDT.

* At 1050 PM CDT, a severe thunderstorm was located near Woodville,
  or 19 miles north of St. Francisville, moving east at 35 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Centreville, Woodville, Gloster, Wilson, Norwood, Spillman and
  Felps.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3125 9084 3099 9083 3095 9086 3089 9085
      3086 9086 3096 9151 3121 9138
TIME...MOT...LOC 0350Z 269DEG 30KT 3106 9141 

TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
 
$$

CAB
2 follow-up statements
638 
WWUS54 KLIX 080427
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
1127 PM CDT Wed Apr 7 2021

LAC037-125-MSC005-157-080500-
/O.CON.KLIX.SV.W.0024.000000T0000Z-210408T0500Z/
West Feliciana LA-East Feliciana LA-Wilkinson MS-Amite MS-
1127 PM CDT Wed Apr 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
FOR NORTHEASTERN WEST FELICIANA AND NORTHEASTERN EAST FELICIANA
PARISHES...SOUTHEASTERN WILKINSON AND SOUTHWESTERN AMITE COUNTIES...

At 1126 PM CDT, a severe thunderstorm was located near Woodville, or
15 miles northwest of Jackson, moving east at 35 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Centreville, Woodville, Gloster, Wilson, Norwood, Spillman and Felps.

This is a separate storm not associated with the tornado warning and 
may become the dominant storm soon. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into a
small central room in a sturdy structure.

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3125 9084 3099 9083 3095 9086 3089 9085
      3086 9086 3096 9151 3121 9138
TIME...MOT...LOC 0426Z 271DEG 32KT 3102 9136 

TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
 
$$

CAB
664 
WWUS54 KLIX 080448
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
1148 PM CDT Wed Apr 7 2021

LAC037-125-MSC005-157-080500-
/O.CON.KLIX.SV.W.0024.000000T0000Z-210408T0500Z/
West Feliciana LA-East Feliciana LA-Wilkinson MS-Amite MS-
1148 PM CDT Wed Apr 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
FOR NORTHEASTERN WEST FELICIANA AND NORTHEASTERN EAST FELICIANA
PARISHES...SOUTHEASTERN WILKINSON AND SOUTHWESTERN AMITE COUNTIES...

At 1147 PM CDT, a severe thunderstorm was located near Norwood, or 10
miles north of Jackson, 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.

Locations impacted include...
Centreville, Gloster, Wilson, Norwood, Felps and Spillman. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into a
small central room in a sturdy structure.

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3125 9084 3099 9083 3095 9086 3089 9085
      3086 9086 3094 9135 3123 9105
TIME...MOT...LOC 0447Z 280DEG 33KT 3098 9119 

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

CAB

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 7, 9:42 PM CDTSevere Thunderstorm WarningLIXWilkinson78 min
Apr 7, 10:22 PM CDTTornado WarningLIXWilkinson53 min
Apr 7, 11:12 PM CDTTornado WarningLIXWilkinson28 min
Apr 8, 12:39 AM CDTSevere Thunderstorm WarningLIXAmite, Pike, Walthall66 min
Apr 8, 1:12 AM CDTTornado WarningLIXPike33 min
Apr 8, 2:04 AM CDTSpecial Weather StatementLIXPearl River56 min
Apr 8, 2:56 AM CDTTornado WarningLIXPearl River34 min
Apr 8, 3:13 AM CDTSpecial Weather StatementLIXHancock, Harrison62 min
Apr 8, 3:24 AM CDTTornado WarningLIXHancock36 min
Apr 8, 12:08 AM CDTSevere Thunderstorm WarningLIXEast Feliciana, Saint Helena67 min
Apr 8, 12:25 AM CDTSevere Thunderstorm WarningLIXEast Baton Rouge, East Feliciana, Pointe Coupee, Saint Helena, West Baton Rouge, West Feliciana34 min
Apr 8, 1:05 AM CDTSevere Thunderstorm WarningLIXSaint Tammany, Tangipahoa, Washington55 min
Apr 8, 1:20 AM CDTTornado WarningLIXLivingston, Saint Helena25 min
Apr 8, 1:51 AM CDTSevere Thunderstorm WarningLIXLivingston, Saint John the Baptist, Tangipahoa39 min
Apr 8, 2:00 AM CDTSpecial Marine WarningLIX30 min
Apr 8, 2:14 AM CDTSpecial Marine WarningLIX61 min
Apr 8, 2:24 AM CDTSevere Thunderstorm WarningLIXSaint Tammany51 min
Apr 8, 2:30 AM CDTTornado WarningLIXSaint Tammany30 min
Apr 8, 2:54 AM CDTSpecial Weather StatementLIXOrleans, Saint Charles66 min
Apr 8, 3:03 AM CDTTornado WarningLIXSaint Charles, Saint John the Baptist14 min
Apr 8, 3:28 AM CDTSpecial Marine WarningLIX62 min
Apr 8, 3:42 AM CDTFlash Flood WarningLIXJefferson, Orleans, Saint Charles5 hr
Apr 8, 4:00 AM CDTTornado WarningLIXJefferson12 min
Apr 8, 4:15 AM CDTSpecial Weather StatementLIXJefferson, Lafourche60 min
Apr 8, 4:22 AM CDTTornado WarningLIXJefferson23 min
Apr 8, 4:31 AM CDTSpecial Marine WarningLIX89 min
Apr 8, 5:14 AM CDTSpecial Weather StatementLIXJefferson, Plaquemines, Terrebonne61 min
Apr 8, 5:19 AM CDTSpecial Marine WarningLIX56 min
Apr 8, 5:45 AM CDTSpecial Marine WarningLIX2 hr
Apr 8, 6:11 AM CDTSevere Thunderstorm WarningLIXPlaquemines34 min
Apr 8, 6:15 AM CDTSpecial Marine WarningLIX2 hr
Apr 8, 7:42 AM CDTSpecial Marine WarningLIX63 min
Apr 8, 9:55 AM CDTRiver Flood WarningLIXTangipahoa12 days
Apr 8, 9:58 AM CDTRiver Flood WarningLIXSaint Tammany4 days
Apr 8, 10:10 AM CDTRiver Flood WarningLIXAscension12 days

Nearby

Severe Thunderstorm Warnings in Mississippi, 2021Severe Thunderstorm Warnings in Louisiana, 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; the sounding from the Mesonet's radiosonde archive.