Alert archive / Mississippi / Tornado Warnings in 2021

Tornado Warning 34, NWS New Orleans, LA

June 18, 2021Harrison County, Jackson County, Mississippi

NWS New Orleans, LA issued this tornado warning at Jun 18, 2021, 11:39 PM CDT for Harrison County, Jackson County, Mississippi. It was in force for 9 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
Jun 18, 2021, 11:39 PM CDT (04:39 UTC)
Expired
Jun 18, 2021, 11:48 PM CDT
In force
9 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), 69 km from the middle of the area, began a volume at 04:41 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 nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 4.7 hours before the alert went out and 79 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 2021-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 174 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2021-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 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
174 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
572 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

708 
WFUS54 KLIX 190439
TORLIX
MSC047-059-190500-
/O.NEW.KLIX.TO.W.0034.210619T0439Z-210619T0500Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
1139 PM CDT Fri Jun 18 2021

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  East central Harrison County in southern Mississippi...
  Southwestern Jackson County in southern Mississippi...

* Until midnight CDT.
    
* At 1139 PM CDT, a severe thunderstorm capable of producing a
  tornado was located over D'iberville, or over Biloxi, moving
  northwest at 40 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...
  Gulfport around 1150 PM CDT.

This includes the following Interstates...
 Interstate 10 in Mississippi between mile markers 40 and 49.
 Interstate 110 in Mississippi between mile markers 3 and 4.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to 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 3043 8882 3042 8884 3043 8886 3042 8887
      3042 8889 3043 8893 3042 8894 3042 8896
      3049 8907 3058 8898
TIME...MOT...LOC 0439Z 130DEG 35KT 3045 8891 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

KLG
1 follow-up statement
854 
WWUS54 KLIX 190448
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
1148 PM CDT Fri Jun 18 2021

MSC047-059-190458-
/O.CAN.KLIX.TO.W.0034.000000T0000Z-210619T0500Z/
Harrison MS-Jackson MS-
1148 PM CDT Fri Jun 18 2021

...THE TORNADO WARNING FOR EAST CENTRAL HARRISON AND SOUTHWESTERN
JACKSON COUNTIES 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.

LAT...LON 3043 8882 3042 8884 3043 8886 3042 8887
      3042 8889 3043 8893 3042 8894 3042 8896
      3049 8907 3058 8898
TIME...MOT...LOC 0445Z 130DEG 35KT 3051 8899 

$$

KLG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 9:52 PM CDTAreal Flood AdvisoryLIXHancock, Harrison30 min
Jun 18, 10:22 PM CDTFlash Flood WarningLIXHancock, Harrison5 hr
Jun 18, 11:23 PM CDTTornado WarningLIXHancock, Harrison22 min
Jun 18, 11:40 PM CDTAreal Flood AdvisoryLIXHancock, Harrison, Jackson, Pearl River64 min
Jun 18, 11:46 PM CDTTornado WarningLIXHancock14 min
Jun 19, 12:37 AM CDTTornado WarningLIXHancock, Harrison23 min
Jun 19, 12:44 AM CDTFlash Flood WarningLIXHancock, Harrison, Jackson, Pearl River4 hr
Jun 19, 12:52 AM CDTAreal Flood AdvisoryLIXPearl River4 hr
Jun 19, 12:53 AM CDTTornado WarningLIXHarrison8 min
Jun 19, 1:52 AM CDTFlash Flood WarningLIXPearl River4 hr
Jun 19, 2:56 AM CDTRiver Flood WarningLIXHancock41 hr
Jun 19, 3:37 AM CDTFlash Flood WarningLIXJackson4 hr
Jun 19, 5:08 AM CDTTornado WarningLIXJackson37 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.