Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 33, NWS New Orleans, LA

April 9, 2021Amite County, Pike County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Apr 9, 2021, 11:57 PM CDT for Amite County, Pike County, Mississippi. It was in force for 36 min. 2 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
Apr 9, 2021, 11:57 PM CDT (04:57 UTC)
Expired
Apr 10, 2021, 12:33 AM CDT
In force
36 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Amite County, MS, Pike County, MS

What was reported inside it

TimeReportWhereRemark
Apr 9, 11:58 PM CDTTSTM WND DMG6 Wnw Summit, MSTREE DOWN NEAR HWY 98.
Apr 10, 12:04 AM CDTTSTM WND DMGSummit, MSTREES AND POWER LINES DOWN AROUND SUMMIT.

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
Apr 9, 10:25 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 5.0 hours before the alert went out and 130 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 00:00Z on 2021-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2299 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 2021-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
2299 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1555 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.9

Open this sounding in Storm Lab

The text

As transmitted.

863 
WUUS54 KLIX 100457
SVRLIX
MSC005-113-100545-
/O.NEW.KLIX.SV.W.0033.210410T0457Z-210410T0545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New Orleans LA
1157 PM CDT Fri Apr 9 2021

The National Weather Service in New Orleans has issued a

* Severe Thunderstorm Warning for...
  Pike County in southern Mississippi...
  Eastern Amite County in southern Mississippi...

* Until 1245 AM CDT.

* At 1157 PM CDT, a severe thunderstorm was located near Smithdale,
  or 10 miles northwest of Mccomb, moving northeast 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...
  Mccomb, Liberty, Magnolia, Summit, Smithdale and Mccomb Airport. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3114 9026 3108 9087 3135 9090 3135 9026
TIME...MOT...LOC 0457Z 246DEG 35KT 3133 9061 

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

BL
3 follow-up statements
888 
WWUS54 KLIX 100510
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
1210 AM CDT Sat Apr 10 2021

MSC005-100519-
/O.CAN.KLIX.SV.W.0033.000000T0000Z-210410T0545Z/
Amite MS-
1210 AM CDT Sat Apr 10 2021

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

A Severe Thunderstorm Watch remains in effect until 400 AM CDT for
southern Mississippi.

LAT...LON 3114 9026 3111 9055 3135 9055 3135 9026
TIME...MOT...LOC 0509Z 246DEG 35KT 3138 9048 

$$

MSC113-100545-
/O.CON.KLIX.SV.W.0033.000000T0000Z-210410T0545Z/
Pike MS-
1210 AM CDT Sat Apr 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT
FOR PIKE COUNTY...

At 1209 AM CDT, a severe thunderstorm was located near Bogue Chitto,
or 9 miles north of Mccomb, moving northeast 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...
Mccomb, Magnolia, Summit and Mccomb Airport. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3114 9026 3111 9055 3135 9055 3135 9026
TIME...MOT...LOC 0509Z 246DEG 35KT 3138 9048 

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

KLG
957 
WWUS54 KLIX 100527
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
1227 AM CDT Sat Apr 10 2021

MSC113-100545-
/O.CON.KLIX.SV.W.0033.000000T0000Z-210410T0545Z/
Pike MS-
1227 AM CDT Sat Apr 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT
FOR NORTHEASTERN PIKE COUNTY...

At 1226 AM CDT, a severe thunderstorm was located over East Lincoln,
or 12 miles southeast of Brookhaven, moving northeast 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 remain over mainly rural areas of
northeastern Pike County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 AM CDT for southern
Mississippi.

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

&&

LAT...LON 3113 9039 3124 9039 3135 9026 3114 9026
TIME...MOT...LOC 0526Z 246DEG 35KT 3145 9029 

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

KLG
234 
WWUS54 KLIX 100533
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
1233 AM CDT Sat Apr 10 2021

MSC113-100543-
/O.CAN.KLIX.SV.W.0033.000000T0000Z-210410T0545Z/
Pike MS-
1233 AM CDT Sat Apr 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PIKE 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 700 AM CDT for southern
Mississippi.

LAT...LON 3113 9039 3124 9039 3135 9026 3114 9026
TIME...MOT...LOC 0532Z 246DEG 35KT 3148 9021 

$$

KLG

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 10, 12:12 AM CDTSevere Thunderstorm WarningLIXWalthall33 min
Apr 10, 12:14 AM CDTSpecial Weather StatementLIXWilkinson46 min
Apr 10, 12:41 AM CDTSevere Thunderstorm WarningLIXPearl River11 min
Apr 10, 12:46 AM CDTSevere Thunderstorm WarningLIXAmite, Pike, Walthall43 min
Apr 10, 1:33 AM CDTSpecial Weather StatementLIXPearl River42 min
Apr 10, 1:45 AM CDTTornado WarningLIXWilkinson45 min
Apr 10, 1:52 AM CDTSpecial Weather StatementLIXPearl River38 min
Apr 10, 2:01 AM CDTSevere Thunderstorm WarningLIXPearl River29 min
Apr 10, 2:05 AM CDTTornado WarningLIXPearl River10 min
Apr 10, 2:42 AM CDTSevere Thunderstorm WarningLIXHancock, Harrison33 min
Apr 10, 2:58 AM CDTSevere Thunderstorm WarningLIXAmite, Pike35 min
Apr 10, 3:11 AM CDTSevere Thunderstorm WarningLIXHarrison, Jackson49 min
Apr 10, 3:20 AM CDTSevere Thunderstorm WarningLIXAmite, Wilkinson33 min
Apr 10, 3:29 AM CDTSevere Thunderstorm WarningLIXHarrison, Jackson31 min
Apr 10, 3:36 AM CDTSpecial Weather StatementLIXPearl River39 min
Apr 10, 3:55 AM CDTSevere Thunderstorm WarningLIXHarrison, Jackson14 min
Apr 10, 4:06 AM CDTFlash Flood WarningLIXHancock, Pearl River3 hr
Apr 10, 5:07 AM CDTSpecial Weather StatementLIXHancock23 min
Apr 10, 5:35 AM CDTSpecial Weather StatementLIXHarrison25 min
Apr 10, 6:02 AM CDTAreal Flood AdvisoryLIXJackson3 hr
Apr 10, 9:49 AM CDTRiver Flood WarningLIXPike, Walthall56 hr
Apr 10, 9:58 AM CDTRiver Flood WarningLIXHarrison25 hr

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.