Alert archive / Mississippi / Tornado Warnings in 2021

Tornado Warning 54, NWS New Orleans, LA

August 30, 2021Harrison County, Jackson County, Mississippi

NWS New Orleans, LA issued this tornado warning at Aug 30, 2021, 2:47 AM CDT for Harrison County, Jackson County, Mississippi. It was in force for 47 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, 2:47 AM CDT (07:47 UTC)
Expired
Aug 30, 2021, 3:34 AM CDT
In force
47 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Harrison County, MS, Jackson County, MS

The radar

The Mobile radar (KMOB), 67 km from the middle of the area, began a volume at 07:48 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, 6:49 PM CDTTornado WatchSPC11 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 7.8 hours before the alert went out and 80 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 2021-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 25 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 2021-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.1939587897Sfc1 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
25 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
679 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

208 
WFUS54 KLIX 300747
TORLIX
MSC047-059-300845-
/O.NEW.KLIX.TO.W.0054.210830T0747Z-210830T0845Z/

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

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Eastern Harrison County in southern Mississippi...
  Northwestern Jackson County in southern Mississippi...

* Until 345 AM CDT.
    
* At 246 AM CDT, a severe thunderstorm capable of producing a tornado
  was located over Biloxi, moving north at 65 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...
  Latimer around 255 AM CDT.

Other locations impacted by this tornadic thunderstorm include
Gulfport Airport.

This includes the following Interstates...
 Interstate 10 in Mississippi between mile markers 36 and 51.
 Interstate 110 in Mississippi between mile markers 1 and 4.

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 3041 8884 3042 8884 3042 8883 3043 8887
      3043 8899 3042 8901 3042 8888 3041 8886
      3039 8886 3039 8897 3037 8907 3067 8910
      3068 8889 3073 8888 3073 8884 3040 8881
TIME...MOT...LOC 0746Z 179DEG 57KT 3042 8897 

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

$$

06
1 follow-up statement
682 
WWUS54 KLIX 300834
SVSLIX

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

MSC047-059-300844-
/O.CAN.KLIX.TO.W.0054.000000T0000Z-210830T0845Z/
Harrison MS-Jackson MS-
334 AM CDT Mon Aug 30 2021

...THE TORNADO WARNING FOR EASTERN HARRISON AND NORTHWESTERN JACKSON
COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 600 AM CDT for southern
Mississippi.

LAT...LON 3041 8884 3042 8884 3042 8883 3043 8887
      3043 8899 3042 8901 3042 8888 3041 8886
      3039 8886 3039 8897 3037 8907 3067 8910
      3068 8889 3073 8888 3073 8884 3040 8881
TIME...MOT...LOC 0832Z 179DEG 57KT 3119 8899 

$$

K. Kuyper

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, 2:55 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, 7:28 AM CDTTornado WarningLIXJackson22 min
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.