Alert archive / Mississippi / Tornado Warnings in 2021

Tornado Warning 56, NWS New Orleans, LA

August 30, 2021Jackson County, Mississippi

NWS New Orleans, LA issued this tornado warning at Aug 30, 2021, 7:28 AM CDT for Jackson County, Mississippi. It was in force for 22 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 30, 2021, 7:28 AM CDT (12:28 UTC)
Expired
Aug 30, 2021, 7:50 AM CDT
In force
22 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Jackson County, MS

The radar

The Mobile radar (KMOB), 38 km from the middle of the area, began a volume at 12:29 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 30, 5:48 AM CDTTornado WatchSPC10 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 0.5 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 2021-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 881 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 12:00Z on 2021-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 386 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
881 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
560 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
386 m²/s²
0-3 km storm-relative helicity
386 m²/s²
Significant tornado parameter
1.1
Supercell composite
9.7

Open this sounding in Storm Lab

The text

As transmitted.

467 
WFUS54 KLIX 301228
TORLIX
MSC059-301315-
/O.NEW.KLIX.TO.W.0056.210830T1228Z-210830T1315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
Issued by National Weather Service Lake Charles LA
728 AM CDT Mon Aug 30 2021

The National Weather Service in New Orleans has issued a

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

* Until 815 AM CDT.
    
* At 727 AM CDT, a severe thunderstorm capable of producing a tornado
  was located over Petit Bois Island, or 12 miles south of Moss
  Point, moving north at 45 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...
  Moss Point around 745 AM CDT.
  Helena around 750 AM CDT.

This includes Interstate 10 in Mississippi between mile markers 72
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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3034 8840 3036 8841 3036 8845 3034 8845
      3033 8846 3032 8850 3033 8851 3035 8851
      3034 8852 3035 8852 3067 8843 3068 8841
      3040 8840 3038 8840 3039 8841 3038 8841
      3035 8839
TIME...MOT...LOC 1227Z 192DEG 39KT 3025 8850 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

tingler
1 follow-up statement
543 
WWUS54 KLIX 301250
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
Issued by National Weather Service Lake Charles LA
750 AM CDT Mon Aug 30 2021

MSC059-301258-
/O.CAN.KLIX.TO.W.0056.000000T0000Z-210830T1315Z/
Jackson MS-
750 AM CDT Mon Aug 30 2021

...THE TORNADO WARNING FOR SOUTHEASTERN JACKSON COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has weakened. 
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 400 PM CDT for southern
Mississippi.

LAT...LON 3034 8840 3036 8841 3036 8845 3034 8845
      3033 8846 3032 8850 3033 8851 3035 8851
      3034 8852 3035 8852 3067 8843 3068 8841
      3040 8840 3038 8840 3039 8841 3038 8841
      3035 8839
TIME...MOT...LOC 1247Z 192DEG 39KT 3038 8847 

$$

tingler

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 8:22 PM CDTTornado WarningLIXHancock, Pearl River38 min
Aug 29, 9:04 PM CDTTornado WarningLIXHancock, Harrison, Pearl River26 min
Aug 29, 9:05 PM CDTRiver Flood WarningLIXHancock, Pearl River12 days
Aug 29, 9:05 PM CDTRiver Flood WarningLIXPike, Walthall38 hr
Aug 29, 9:05 PM CDTRiver Flood WarningLIXHancock, Pearl River11 days
Aug 29, 9:06 PM CDTRiver Flood WarningLIXJackson9 days
Aug 29, 9:32 PM CDTTornado WarningLIXHancock, Pearl River13 min
Aug 29, 9:36 PM CDTTornado WarningLIXHancock, Harrison, Pearl River24 min
Aug 29, 10:01 PM CDTTornado WarningLIXHancock, Harrison, Pearl River14 min
Aug 29, 10:34 PM CDTTornado WarningLIXHancock, Harrison, Pearl River41 min
Aug 29, 11:45 PM CDTTornado WarningLIXHancock, Harrison31 min
Aug 30, 12:41 AM CDTTornado WarningLIXHarrison, Jackson49 min
Aug 30, 2:39 AM CDTFlash Flood Warning Considerable damage threatLIXHancock, Harrison, Jackson, Pearl River9 hr
Aug 30, 2:47 AM CDTTornado WarningLIXHarrison, Jackson47 min
Aug 30, 2:55 AM CDTFlash Flood Warning Considerable damage threatLIXAmite, Pike, Walthall5 hr
Aug 30, 2:55 AM CDTTornado WarningLIXJackson65 min
Aug 30, 3:55 AM CDTFlash Flood WarningLIXAmite, Pike, Walthall5 hr
Aug 30, 4:11 AM CDTFlash Flood WarningLIXHarrison, Jackson8 hr
Aug 30, 5:43 AM CDTFlash Flood WarningLIXPearl River5 hr
Aug 30, 7:37 AM CDTTornado WarningLIXHarrison23 min
Aug 30, 8:02 AM CDTTornado WarningLIXHarrison, Jackson28 min
Aug 30, 9:30 AM CDTTornado WarningLIXJackson60 min
Aug 30, 10:53 AM CDTAreal Flood WarningLIXHancock, Pearl River35 hr
Aug 30, 11:04 AM CDTAreal Flood WarningLIXPearl River, Pike, Walthall35 hr
Aug 30, 11:17 AM CDTTornado WarningLIXJackson28 min
Aug 30, 11:34 AM CDTAreal Flood WarningLIXHancock, Harrison, Jackson, Pearl River34 hr
Aug 30, 12:33 PM CDTFlash Flood Warning EmergencyConsiderable damage threatLIXHarrison, Jackson3 hr
Aug 30, 2:57 PM CDTHeat AdvisoryLIXPearl River26 hr
Aug 30, 3:51 PM CDTAreal Flood WarningLIXHarrison, Jackson30 hr

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.