Alert archive / Mississippi / Tornado Warnings in 2019

Tornado Warning 21, NWS New Orleans, LA

April 18, 2019Pike County, Walthall County, Mississippi; Tangipahoa Parish, Washington Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Apr 18, 2019, 3:31 PM CDT for Pike County, Walthall County, Mississippi; Tangipahoa Parish, Washington Parish, Louisiana. It was in force for 29 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
Apr 18, 2019, 3:31 PM CDT (20:31 UTC)
Expired
Apr 18, 2019, 4:00 PM CDT
In force
29 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Tangipahoa Parish, LA, Washington Parish, LA, Pike County, MS, Walthall County, MS

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 18, 10:35 AM CDTTornado WatchSPC8 hr
Apr 18, 1:41 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.5 hours before the alert went out and 97 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 2019-04-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 560 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2019-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 172 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
560 J/kg
Mixed-layer CIN
-246 J/kg
Mixed-layer LCL
555 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
172 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

819 
WFUS54 KLIX 182031
TORLIX
LAC105-117-MSC113-147-182100-
/O.NEW.KLIX.TO.W.0021.190418T2031Z-190418T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
331 PM CDT Thu Apr 18 2019

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Northern Tangipahoa Parish in southeastern Louisiana...
  Northwestern Washington Parish in southeastern Louisiana...
  Southwestern Walthall County in southern Mississippi...
  Southeastern Pike County in southern Mississippi...

* Until 400 PM CDT.
    
* At 331 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Mount Herman, or 11 miles northwest of
  Franklinton, moving east 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...
  Tylertown around 350 PM CDT.
  Dexter around 400 PM CDT.

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3114 9000 3113 8999 3083 8994 3086 9036
      3104 9036 3118 9003 3117 9000
TIME...MOT...LOC 2031Z 252DEG 33KT 3097 9028 

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 4:04 AM CDTWind AdvisoryLIXAmite, Pearl River, Pike, Walthall, Wilkinson27 hr
Apr 18, 12:45 PM CDTSevere Thunderstorm WarningLIXWilkinson30 min
Apr 18, 1:22 PM CDTSevere Thunderstorm WarningLIXAmite, Wilkinson53 min
Apr 18, 1:41 PM CDTTornado WarningLIXAmite, Wilkinson34 min
Apr 18, 1:59 PM CDTSpecial Weather StatementLIXPearl River46 min
Apr 18, 2:07 PM CDTSevere Thunderstorm WarningLIXAmite, Pike23 min
Apr 18, 2:12 PM CDTTornado WarningLIXAmite, Pike33 min
Apr 18, 2:46 PM CDTSpecial Weather StatementLIXAmite29 min
Apr 18, 3:09 PM CDTSevere Thunderstorm WarningLIXAmite, Pike, Walthall36 min
Apr 18, 3:58 PM CDTTornado WarningLIXWalthall32 min
Apr 18, 4:31 PM CDTSpecial Weather StatementLIXPearl River29 min
Apr 18, 5:27 PM CDTSpecial Weather StatementLIXHarrison33 min
Apr 18, 5:48 PM CDTAreal Flood AdvisoryLIXAmite, Pike3 hr
Apr 18, 6:14 PM CDTSpecial Weather StatementLIXJackson31 min
Apr 18, 6:41 PM CDTSpecial Weather StatementLIXPike, Walthall49 min
Apr 18, 6:50 PM CDTSpecial Weather StatementLIXJackson25 min
Apr 18, 6:55 PM CDTTornado WarningLIXJackson9 min
Apr 18, 3:51 AM CDTGale WarningLIX30 hr
Apr 18, 3:51 AM CDTSmall Craft AdvisoryLIX15 hr
Apr 18, 3:51 AM CDTSmall Craft AdvisoryLIX51 hr
Apr 18, 10:40 AM CDTGale WarningLIX23 hr
Apr 18, 10:40 AM CDTSmall Craft AdvisoryLIX8 hr
Apr 18, 11:13 AM CDTSpecial Weather StatementLIXIberville47 min
Apr 18, 11:43 AM CDTSpecial Weather StatementLIXWest Feliciana32 min
Apr 18, 11:47 AM CDTSpecial Weather StatementLIXEast Baton Rouge28 min
Apr 18, 11:53 AM CDTSpecial Weather StatementLIXIberville52 min
Apr 18, 12:02 PM CDTSpecial Weather StatementLIXEast Baton Rouge28 min
Apr 18, 12:07 PM CDTSpecial Weather StatementLIXAssumption38 min
Apr 18, 12:14 PM CDTSpecial Weather StatementLIXLivingston, Tangipahoa31 min
Apr 18, 12:19 PM CDTSpecial Weather StatementLIXEast Baton Rouge26 min
Apr 18, 12:22 PM CDTSevere Thunderstorm WarningLIXAscension, East Baton Rouge, Iberville, West Baton Rouge22 min
Apr 18, 12:26 PM CDTAreal Flood AdvisoryLIXEast Baton Rouge, Iberville, West Baton Rouge2 hr
Apr 18, 12:36 PM CDTSpecial Weather StatementLIXEast Baton Rouge24 min
Apr 18, 12:42 PM CDTSpecial Weather StatementLIXLivingston33 min
Apr 18, 12:47 PM CDTSevere Thunderstorm WarningLIXAscension, Livingston, Tangipahoa26 min
Apr 18, 1:02 PM CDTSpecial Weather StatementLIXSaint Charles28 min
Apr 18, 1:04 PM CDTSpecial Weather StatementLIXSaint Helena26 min
Apr 18, 1:13 PM CDTSpecial Weather StatementLIXSaint John the Baptist32 min
Apr 18, 1:15 PM CDTSpecial Marine WarningLIX45 min
Apr 18, 1:22 PM CDTFlash Flood WarningLIXPointe Coupee, West Feliciana3 hr
Apr 18, 1:34 PM CDTSpecial Weather StatementLIXSaint Tammany26 min
Apr 18, 1:36 PM CDTSpecial Weather StatementLIXSaint Charles24 min
Apr 18, 1:55 PM CDTSpecial Marine WarningLIX50 min
Apr 18, 1:58 PM CDTSpecial Marine WarningLIX92 min
Apr 18, 2:20 PM CDTSpecial Weather StatementLIXEast Feliciana40 min
Apr 18, 2:25 PM CDTSpecial Weather StatementLIXSaint Charles35 min
Apr 18, 2:31 PM CDTAreal Flood AdvisoryLIXAscension, Assumption, East Baton Rouge, East Feliciana, Iberville, Livingston and 2 more3 hr
Apr 18, 2:36 PM CDTSpecial Weather StatementLIXTerrebonne24 min
Apr 18, 2:40 PM CDTSpecial Marine WarningLIX50 min
Apr 18, 2:49 PM CDTSpecial Weather StatementLIXAssumption26 min
Apr 18, 3:01 PM CDTSpecial Weather StatementLIXAssumption, Saint James, Terrebonne29 min
Apr 18, 3:22 PM CDTSpecial Weather StatementLIXTangipahoa23 min
Apr 18, 3:27 PM CDTSpecial Weather StatementLIXLafourche, Saint Charles33 min
Apr 18, 3:36 PM CDTSpecial Marine WarningLIX24 min
Apr 18, 3:44 PM CDTTornado WarningLIXTangipahoa, Washington31 min
Apr 18, 3:48 PM CDTSpecial Weather StatementLIXEast Baton Rouge, Iberville, West Baton Rouge27 min
Apr 18, 3:52 PM CDTSpecial Marine WarningLIX83 min
Apr 18, 4:02 PM CDTSpecial Marine WarningLIX43 min
Apr 18, 4:19 PM CDTSpecial Weather StatementLIXAscension, East Baton Rouge, Iberville, Livingston26 min
Apr 18, 4:42 PM CDTSpecial Marine WarningLIX93 min
Apr 18, 4:44 PM CDTSpecial Weather StatementLIXAscension, Livingston, Saint Helena, Saint James, Tangipahoa46 min
Apr 18, 5:11 PM CDTSpecial Marine WarningLIX94 min
Apr 18, 5:21 PM CDTSpecial Marine WarningLIX39 min
Apr 18, 5:24 PM CDTSpecial Weather StatementLIXAscension, Livingston, Saint James, Saint John the Baptist, Tangipahoa36 min
Apr 18, 5:58 PM CDTSpecial Marine WarningLIX47 min
Apr 18, 6:11 PM CDTSpecial Marine WarningLIX49 min
Apr 18, 6:45 PM CDTSpecial Marine WarningLIX30 min
Apr 18, 6:47 PM CDTSpecial Marine WarningLIX43 min

Nearby

Tornado Warnings in Mississippi, 2019Tornado Warnings in Louisiana, 2019Every tornado warning in 2019Tornadoes in 2019

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.