Alert archive / Mississippi / Tornado Warnings in 2021

Tornado Warning 40, NWS New Orleans, LA

August 29, 2021Jackson County, Mississippi

NWS New Orleans, LA issued this tornado warning at Aug 29, 2021, 8:10 AM CDT for Jackson County, Mississippi. It was in force for 24 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
Aug 29, 2021, 8:10 AM CDT (13:10 UTC)
Expired
Aug 29, 2021, 8:34 AM CDT
In force
24 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Jackson County, MS

The radar

The Mobile radar (KMOB), 27 km from the middle of the area, began a volume at 13:11 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 29, 6:07 AM CDTTornado WatchSPC13 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 1.2 hours before the alert went out and 122 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 12:00Z on 2021-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2021-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -55 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3256 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-55 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

As transmitted.

316 
WFUS54 KLIX 291310
TORLIX
MSC059-291415-
/O.NEW.KLIX.TO.W.0040.210829T1310Z-210829T1415Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
810 AM CDT Sun Aug 29 2021

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Northeastern Jackson County in southern Mississippi...

* Until 915 AM CDT.
    
* At 810 AM CDT, a severe thunderstorm capable of producing a tornado
  was located near Big Point, or near Grand Bay, moving northwest at
  55 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Big Point around 815 AM CDT.
  Wade and Hurley around 820 AM CDT.

This includes Interstate 10 in Mississippi between mile markers 75
and 76.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3046 8840 3045 8843 3073 8879 3073 8851
      3060 8840
TIME...MOT...LOC 1310Z 139DEG 49KT 3054 8843 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

KLG
2 follow-up statements
139 
WWUS54 KLIX 291327
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
827 AM CDT Sun Aug 29 2021

MSC059-291415-
/O.CON.KLIX.TO.W.0040.000000T0000Z-210829T1415Z/
Jackson MS-
827 AM CDT Sun Aug 29 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 AM CDT FOR
NORTHEASTERN JACKSON COUNTY...
    
At 827 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Wade, or 14 miles south of Lucedale, moving
northwest at 55 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
northeastern Jackson County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3057 8840 3057 8847 3058 8860 3073 8879
      3073 8851 3060 8840
TIME...MOT...LOC 1327Z 139DEG 49KT 3072 8861 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

KLG
516 
WWUS54 KLIX 291334
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
834 AM CDT Sun Aug 29 2021

MSC059-291344-
/O.CAN.KLIX.TO.W.0040.000000T0000Z-210829T1415Z/
Jackson MS-
834 AM CDT Sun Aug 29 2021

...THE TORNADO WARNING FOR NORTHEASTERN JACKSON COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

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

LAT...LON 3057 8840 3057 8847 3058 8860 3073 8879
      3073 8851 3060 8840
TIME...MOT...LOC 1330Z 139DEG 49KT 3079 8868 

$$

KLG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 6:21 AM CDTTornado WarningLIXHancock, Harrison24 min
Aug 29, 2:15 PM CDTTornado WarningLIXHancock, Harrison, Pearl River15 min
Aug 29, 3:07 PM CDTTornado WarningLIXHancock23 min
Aug 29, 5:12 PM CDTTornado WarningLIXHarrison33 min
Aug 29, 5:20 PM CDTFlash Flood WarningLIXHarrison5 hr
Aug 29, 6:09 PM CDTFlash Flood WarningLIXHancock, Harrison8 hr
Aug 29, 6:25 PM CDTTornado WarningLIXHancock35 min
Aug 29, 6:54 PM CDTTornado WarningLIXHancock, Pearl River36 min

Nearby

Tornado Warnings in Mississippi, 2021Every tornado warning in 2021Tornadoes 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; radar from the NEXRAD Level II archive.