Alert archive / Mississippi / Tornado Warnings in 2021

Tornado Warning 42, NWS New Orleans, LA

August 29, 2021Hancock County, Mississippi

NWS New Orleans, LA issued this tornado warning at Aug 29, 2021, 3:07 PM CDT for Hancock County, Mississippi. It was in force for 23 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, 3:07 PM CDT (20:07 UTC)
Expired
Aug 29, 2021, 3:30 PM CDT
In force
23 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Hancock County, MS

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, 8.1 hours before the alert went out and 21 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.

287 
WFUS54 KLIX 292007
TORLIX
MSC045-292030-
/O.NEW.KLIX.TO.W.0042.210829T2007Z-210829T2030Z/

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

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Southern Hancock County in southern Mississippi...

* Until 330 PM CDT.
    
* At 306 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Waveland, moving northwest at 50 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...
  Stennis Space Center around 320 PM CDT.

This includes Interstate 10 in Mississippi between mile markers 5 and
10.
 
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 3024 8943 3028 8950 3037 8966 3045 8956
      3027 8938
TIME...MOT...LOC 2006Z 130DEG 42KT 3027 8943 

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

$$

JRK
2 follow-up statements
793 
WWUS54 KLIX 292016
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
316 PM CDT Sun Aug 29 2021

MSC045-292030-
/O.CON.KLIX.TO.W.0042.000000T0000Z-210829T2030Z/
Hancock MS-
316 PM CDT Sun Aug 29 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR WEST
CENTRAL HANCOCK COUNTY...
    
At 315 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Stennis Space Center, or 11 miles west of
Diamondhead, moving northwest at 60 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
west central Hancock County.

This includes Interstate 10 in Mississippi between mile markers 7 and
8.
 
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 3035 8948 3032 8950 3036 8964 3037 8966
      3045 8956 3038 8949
TIME...MOT...LOC 2015Z 122DEG 53KT 3037 8956 

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

$$

JRK
959 
WWUS54 KLIX 292023
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
323 PM CDT Sun Aug 29 2021

MSC045-292033-
/O.EXP.KLIX.TO.W.0042.000000T0000Z-210829T2030Z/
Hancock MS-
323 PM CDT Sun Aug 29 2021

...THE TORNADO WARNING FOR WEST CENTRAL HANCOCK COUNTY WILL EXPIRE AT
330 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

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

LAT...LON 3035 8948 3032 8950 3036 8964 3037 8966
      3045 8956 3038 8949
TIME...MOT...LOC 2023Z 130DEG 42KT 3043 8964 

$$

JRK

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, 8:10 AM CDTTornado WarningLIXJackson24 min
Aug 29, 2:15 PM CDTTornado WarningLIXHancock, Harrison, Pearl River15 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.