Alert archive / Mississippi / Tornado Warnings in 2018

Tornado Warning 19, NWS New Orleans, LA

April 14, 2018Harrison County, Mississippi

NWS New Orleans, LA issued this tornado warning at Apr 14, 2018, 2:06 PM CDT for Harrison County, Mississippi. It was in force for 11 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 14, 2018, 2:06 PM CDT (19:06 UTC)
Expired
Apr 14, 2018, 2:17 PM CDT
In force
11 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Harrison County, MS

The radar

The Mobile radar (KMOB), 77 km from the middle of the area, began a volume at 19:07 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.

What was reported inside it

TimeReportWhereRemark
Apr 14, 2:09 PM CDTTORNADO 01 S Long Beach, MSCOMBINATION OF YOUTUBE STORM CHASER VIDEO AND STORM SURVEY INDICATED A MULTIPLE VORTEX WATERSPOUT MOVED THROUGH THE LONG BEACH HARBOR, REMOVING THE ROOF OFF AN OUTBUILDING AND TOPPLING TWO TALL MASTED SAIL BOATS. WATERSPOUT PROCEEDED ONSHORE ONTO THE BEACH AND

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 14, 10:36 AM CDTTornado WatchSPC8 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.1 hours before the alert went out and 71 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 2018-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1802 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 12:00Z on 2018-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 222 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
1802 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
534 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
222 m²/s²
0-3 km storm-relative helicity
293 m²/s²
Significant tornado parameter
1.6
Supercell composite
12.6

Open this sounding in Storm Lab

The text

As transmitted.

365 
WFUS54 KLIX 141906
TORLIX
MSC047-141930-
/O.NEW.KLIX.TO.W.0019.180414T1906Z-180414T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
206 PM CDT SAT APR 14 2018

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Southeastern Harrison County in southeastern Mississippi...

* Until 230 PM CDT.
    
* At 206 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Long Beach, moving northeast at 30 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...
  Long Beach around 215 PM CDT.
  Gulfport and Biloxi around 230 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Gulfport Airport.

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.

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
New Orleans.

&&

LAT...LON 3039 8900 3032 8924 3033 8925 3059 8898
      3046 8888 3043 8888 3043 8899 3042 8901
      3041 8899 3042 8891 3041 8886 3040 8886
TIME...MOT...LOC 1906Z 236DEG 25KT 3032 8918 

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

$$

32
1 follow-up statement
846 
WWUS54 KLIX 141917
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
217 PM CDT SAT APR 14 2018

MSC047-141927-
/O.CAN.KLIX.TO.W.0019.000000T0000Z-180414T1930Z/
Harrison MS-
217 PM CDT SAT APR 14 2018

...THE TORNADO WARNING FOR SOUTHEASTERN HARRISON 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 and
southeastern Mississippi.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
New Orleans.

LAT...LON 3039 8900 3032 8924 3033 8925 3059 8898
      3046 8888 3043 8888 3043 8899 3042 8901
      3041 8899 3042 8891 3041 8886 3040 8886
TIME...MOT...LOC 1915Z 236DEG 25KT 3036 8911 

$$

32

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 4:24 AM CDTWind AdvisoryLIX12 hr
Apr 14, 6:18 AM CDTSpecial Weather StatementLIXWilkinson27 min
Apr 14, 6:36 AM CDTSevere Thunderstorm WarningLIXWilkinson54 min
Apr 14, 6:58 AM CDTSevere Thunderstorm WarningLIXAmite, Wilkinson62 min
Apr 14, 7:13 AM CDTTornado WarningLIXAmite, Wilkinson47 min
Apr 14, 7:59 AM CDTSevere Thunderstorm WarningLIXAmite, Pike61 min
Apr 14, 8:22 AM CDTTornado WarningLIXAmite, Pike, Walthall38 min
Apr 14, 8:45 AM CDTSevere Thunderstorm WarningLIXPike, Walthall45 min
Apr 14, 8:55 AM CDTTornado WarningLIXWalthall35 min
Apr 14, 9:01 AM CDTTornado WarningLIXWalthall29 min
Apr 14, 9:30 AM CDTSevere Thunderstorm WarningLIXPearl River, Walthall45 min
Apr 14, 9:51 AM CDTAreal Flood AdvisoryLIXAmite, Pike, Walthall3 hr
Apr 14, 10:14 AM CDTAreal Flood AdvisoryLIXHancock, Pearl River, Walthall3 hr
Apr 14, 10:21 AM CDTSpecial Weather StatementLIXHancock, Pearl River84 min
Apr 14, 11:37 AM CDTSevere Thunderstorm WarningLIXHancock, Pearl River22 min
Apr 14, 11:39 AM CDTTornado WarningLIXPearl River22 min
Apr 14, 12:11 PM CDTFlash Flood WarningLIXHancock, Pearl River3 hr
Apr 14, 12:33 PM CDTSpecial Weather StatementLIXHancock, Harrison42 min
Apr 14, 1:07 PM CDTSpecial Weather StatementLIXHarrison53 min
Apr 14, 1:25 PM CDTFlash Flood WarningLIXHancock, Harrison, Jackson9 hr
Apr 14, 1:50 PM CDTSpecial Weather StatementLIXHarrison55 min
Apr 14, 2:42 PM CDTSpecial Weather StatementLIXHarrison63 min
Apr 14, 3:43 PM CDTSpecial Weather StatementLIXJackson62 min
Apr 14, 4:46 PM CDTSpecial Weather StatementLIXHarrison59 min
Apr 14, 5:53 PM CDTSpecial Weather StatementLIXJackson67 min
Apr 14, 6:16 PM CDTTornado WarningLIXJackson29 min

Nearby

Tornado Warnings in Mississippi, 2018Every tornado warning in 2018Tornadoes in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.