Alert archive / Louisiana / Tornado Warnings in 2018

Tornado Warning 33, NWS Jackson, MS

April 14, 2018Morehouse Parish, Louisiana

NWS Jackson, MS issued this tornado warning at Apr 14, 2018, 2:54 AM CDT for Morehouse Parish, Louisiana. It was in force for 51 min. 2 reports 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, 2:54 AM CDT (07:54 UTC)
Expired
Apr 14, 2018, 3:45 AM CDT
In force
51 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Morehouse Parish, LA

The radar

The Jackson/Brandon,MS radar (KDGX), 182 km from the middle of the area, began a volume at 07:54 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, 3:21 AM CDTTORNADO4 E Mer Rouge, LATHIS TORNADO BEGAN ALONG ATWELL LN JUST NORTH OF LA HIGHWAY 2, BLOWING DOWN A FENCE AND BLOWING A SMALL SHED ACROSS THE ROAD. LARGE TREE BRANCHES WERE ALSO DOWNED IN THIS AREA. THE TORNADO CONTINUED EASTWARD PARALLEL AND JUST NORTH OF HIGHWAY 2, CROSSING JOHNS
Apr 14, 3:22 AM CDTTSTM WND DMG5 E Mer Rouge, LAA TREE WAS DOWNED AND A BUILDING WAS DAMAGED ALONG RUSH HARRISON RD.

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 13, 10:12 PM CDTTornado WatchSPC10 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 7.9 hours before the alert went out and 172 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, Jackson, MS at 00:00Z on 2018-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 92 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 2018-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 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
92 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
1418 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
158 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

747 
WFUS54 KJAN 140754
TORJAN
LAC067-140845-
/O.NEW.KJAN.TO.W.0033.180414T0754Z-180414T0845Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
254 AM CDT SAT APR 14 2018

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Morehouse Parish in northeastern Louisiana...

* Until 345 AM CDT
    
* At 253 AM CDT, a severe thunderstorm capable of producing a tornado
  was located over Sterlington, or 8 miles southwest of Bastrop,
  moving east 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...
  Bastrop around 305 AM CDT. 
  Galion around 315 AM CDT. 

Other locations impacted by this tornadic thunderstorm include
Bonita, Collinston, Mer Rouge and Oak Ridge.

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 3280 9206 3300 9144 3289 9150 3285 9157
      3262 9166 3261 9172 3256 9174 3257 9181
      3252 9184 3254 9189 3251 9191 3261 9193
      3266 9191 3266 9194 3271 9197 3271 9204
      3270 9203 3269 9205 3270 9205 3273 9207
TIME...MOT...LOC 0753Z 252DEG 42KT 3271 9204 

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

$$

GRG
2 follow-up statements
817 
WWUS54 KJAN 140815
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
315 AM CDT SAT APR 14 2018

LAC067-140845-
/O.CON.KJAN.TO.W.0033.000000T0000Z-180414T0845Z/
Morehouse LA-
315 AM CDT SAT APR 14 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 AM CDT FOR CENTRAL
MOREHOUSE PARISH...
    
At 315 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Bastrop, moving east at 45 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...
  Galion around 320 AM CDT. 

Other locations impacted by this tornadic thunderstorm include
Bonita, Collinston, Mer Rouge and Oak Ridge.

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 3300 9144 3289 9150 3285 9157 3262 9166
      3261 9172 3256 9174 3257 9181 3254 9188
      3272 9188 3285 9191
TIME...MOT...LOC 0815Z 251DEG 40KT 3277 9180 

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

$$

GRG
287 
WWUS54 KJAN 140826
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
326 AM CDT SAT APR 14 2018

LAC067-140845-
/O.CON.KJAN.TO.W.0033.000000T0000Z-180414T0845Z/
Morehouse LA-
326 AM CDT SAT APR 14 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 AM CDT FOR EASTERN
MOREHOUSE PARISH...
    
At 326 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Goodwill, or 14 miles east of Bastrop, moving east
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 tornadic thunderstorm will remain over mainly rural areas of
eastern Morehouse Parish, including the following locations: Bonita.

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 3300 9144 3289 9150 3285 9157 3262 9166
      3261 9172 3275 9174 3289 9179
TIME...MOT...LOC 0826Z 251DEG 42KT 3281 9166 

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

$$

GRG

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 13, 7:24 PM CDTTornado Warning Tornado observedJANMorehouse34 min
Apr 13, 8:12 PM CDTSevere Thunderstorm WarningJANRichland48 min
Apr 13, 8:28 PM CDTTornado WarningJANRichland62 min
Apr 13, 8:35 PM CDTTornado WarningJANRichland55 min
Apr 13, 9:04 PM CDTTornado WarningJANMorehouse, Richland, West Carroll56 min
Apr 13, 9:59 PM CDTSevere Thunderstorm WarningJANEast Carroll, Morehouse, West Carroll46 min
Apr 13, 10:18 PM CDTFlash Flood WarningJANMorehouse, West Carroll3 hr
Apr 13, 10:43 PM CDTSevere Thunderstorm WarningJANEast Carroll, West Carroll36 min
Apr 14, 2:32 AM CDTSevere Thunderstorm WarningJANMorehouse58 min
Apr 14, 3:30 AM CDTTornado WarningJANEast Carroll, West Carroll49 min
Apr 14, 5:32 AM CDTSpecial Weather StatementJANCatahoula43 min
Apr 14, 5:40 AM CDTSevere Thunderstorm WarningJANCatahoula, Concordia23 min

Nearby

Tornado Warnings in Louisiana, 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.