Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 5, NWS New Orleans, LA

January 20, 2017Wilkinson County, Mississippi; West Feliciana Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Jan 20, 2017, 11:43 PM CST for Wilkinson County, Mississippi; West Feliciana Parish, Louisiana. It was in force for 32 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
Jan 20, 2017, 11:43 PM CST (05:43 UTC)
Expired
Jan 21, 2017, 12:15 AM CST
In force
32 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
2.75 in

Counties West Feliciana Parish, LA, Wilkinson County, MS

The watch it was issued in

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

IssuedProductOfficeLasted
Jan 20, 11:00 PM CSTTornado WatchSPC8 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 5.7 hours before the alert went out and 193 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, Lake Charles Mun, LA at 00:00Z on 2017-01-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 627 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, Lake Charles Mun, LA at 00:00Z on 2017-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 square meters per square second.1939587897117136Sfc1 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
627 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
842 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.2
Supercell composite
0.9

Open this sounding in Storm Lab

The text

As transmitted.

996 
WFUS54 KLIX 210543
TORLIX
LAC125-MSC157-210615-
/O.NEW.KLIX.TO.W.0005.170121T0543Z-170121T0615Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
1143 PM CST FRI JAN 20 2017

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Northwestern West Feliciana Parish in southeastern Louisiana...
  Southwestern Wilkinson County in southern Mississippi...

* Until 1215 AM CST
    
* At 1143 PM CST, a severe thunderstorm capable of producing a
  tornado was located near Fort Adams, or 14 miles east of
  Simmesport, moving northeast at 35 mph.

  HAZARD...Tornado and baseball size hail. 

  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...
  Fort Adams around 1150 PM CST. 
  Woodville around 1210 AM CST. 

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3116 9115 3087 9151 3092 9156 3092 9165
      3097 9166 3100 9164 3102 9168 3104 9167
      3104 9165 3100 9163 3104 9156 3107 9156
      3113 9163 3123 9157 3124 9154 3122 9153
      3123 9149 3126 9148 3128 9150 3131 9147
TIME...MOT...LOC 0543Z 223DEG 32KT 3099 9157 

TORNADO...RADAR INDICATED
HAIL...2.75IN

$$

AK
1 follow-up statement
063 
WWUS54 KLIX 210558
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
1158 PM CST FRI JAN 20 2017

LAC125-210607-
/O.CAN.KLIX.TO.W.0005.000000T0000Z-170121T0615Z/
West Feliciana LA-
1158 PM CST FRI JAN 20 2017

...THE TORNADO WARNING FOR NORTHWESTERN WEST FELICIANA PARISH IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 700 AM CST.

LAT...LON 3116 9115 3100 9135 3100 9163 3102 9159
      3104 9156 3107 9156 3113 9163 3118 9159
      3120 9159 3123 9157 3124 9154 3122 9153
      3123 9149 3126 9148 3128 9150 3129 9147
      3131 9147
TIME...MOT...LOC 0557Z 226DEG 46KT 3108 9142 

$$

MSC157-210615-
/O.CON.KLIX.TO.W.0005.000000T0000Z-170121T0615Z/
Wilkinson MS-
1158 PM CST FRI JAN 20 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM CST FOR
SOUTHWESTERN WILKINSON COUNTY...
    
At 1157 PM CST, a severe thunderstorm capable of producing a tornado
was located 7 miles east of Fort Adams, or 20 miles north of St.
Francisville, moving northeast at 55 mph.

HAZARD...Tornado and golf ball size hail. 

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...
  Woodville around 1205 AM CST. 

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3116 9115 3100 9135 3100 9163 3102 9159
      3104 9156 3107 9156 3113 9163 3118 9159
      3120 9159 3123 9157 3124 9154 3122 9153
      3123 9149 3126 9148 3128 9150 3129 9147
      3131 9147
TIME...MOT...LOC 0557Z 226DEG 46KT 3108 9142 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

AK

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 20, 10:53 PM CSTDense Fog AdvisoryLIX4 hr
Jan 21, 12:12 AM CSTSevere Thunderstorm WarningLIXWilkinson33 min
Jan 21, 12:26 AM CSTTornado WarningLIXAmite, Wilkinson14 min
Jan 21, 12:51 AM CSTSpecial Weather StatementLIXWilkinson39 min
Jan 21, 1:06 AM CSTSevere Thunderstorm WarningLIXWilkinson24 min
Jan 21, 1:14 AM CSTTornado WarningLIXWilkinson31 min
Jan 21, 1:29 AM CSTSevere Thunderstorm WarningLIXWilkinson31 min
Jan 21, 1:41 AM CSTSevere Thunderstorm WarningLIXWilkinson34 min
Jan 21, 1:48 AM CSTSpecial Weather StatementLIXAmite27 min
Jan 21, 2:14 AM CSTSevere Thunderstorm WarningLIXAmite, Wilkinson46 min
Jan 21, 2:28 AM CSTSevere Thunderstorm WarningLIXWalthall32 min
Jan 21, 2:57 AM CSTSevere Thunderstorm WarningLIXWalthall33 min
Jan 21, 2:57 AM CSTSevere Thunderstorm WarningLIXAmite, Pike, Walthall48 min
Jan 21, 3:02 AM CSTTornado WarningLIXWalthall13 min
Jan 21, 3:04 AM CSTTornado WarningLIXWalthall15 min
Jan 21, 4:43 AM CSTSpecial Weather StatementLIXPearl River62 min
Jan 21, 5:22 AM CSTSevere Thunderstorm WarningLIXHancock, Pearl River38 min
Jan 21, 6:00 AM CSTSpecial Weather StatementLIXHancock, Harrison30 min
Jan 21, 8:59 AM CSTSpecial Weather StatementLIXJackson31 min
Jan 21, 11:03 AM CSTRiver Flood WarningLIXHancock, Pearl River13 days
Jan 21, 5:16 PM CSTSevere Thunderstorm WarningLIXHancock29 min
Jan 21, 5:47 PM CSTSevere Thunderstorm WarningLIXWilkinson28 min
Jan 21, 5:51 PM CSTSpecial Weather StatementLIXHancock39 min
Jan 20, 10:53 PM CSTMarine Dense Fog AdvisoryLIX4 hr
Jan 20, 11:01 PM CSTSevere Thunderstorm WarningLIXPointe Coupee, West Feliciana29 min
Jan 20, 11:15 PM CSTTornado WarningLIXPointe Coupee, West Feliciana30 min
Jan 21, 1:51 AM CSTSpecial Weather StatementLIXTangipahoa39 min
Jan 21, 2:20 AM CSTTornado WarningLIXLivingston, Saint Helena, Tangipahoa25 min
Jan 21, 2:48 AM CSTTornado WarningLIXEast Baton Rouge, East Feliciana, Saint Helena10 min
Jan 21, 3:28 AM CSTAreal Flood AdvisoryLIXEast Baton Rouge, Iberville, Pointe Coupee, West Baton Rouge2 hr
Jan 21, 3:37 AM CSTSpecial Weather StatementLIXSaint Helena38 min
Jan 21, 3:40 AM CSTSmall Craft AdvisoryLIX35 hr
Jan 21, 4:45 AM CSTSpecial Weather StatementLIXAscension, Livingston, Tangipahoa60 min
Jan 21, 5:00 AM CSTSpecial Weather StatementLIXWashington30 min
Jan 21, 5:24 AM CSTSpecial Marine WarningLIX96 min
Jan 21, 6:08 AM CSTSevere Thunderstorm WarningLIXJefferson, Orleans37 min
Jan 21, 6:38 AM CSTSpecial Marine WarningLIX37 min
Jan 21, 10:58 AM CSTRiver Flood WarningLIXSaint Helena33 hr
Jan 21, 3:44 PM CSTGale WarningLIX41 hr
Jan 21, 4:33 PM CSTSpecial Weather StatementLIXOrleans42 min
Jan 21, 4:51 PM CSTSpecial Marine WarningLIX24 min
Jan 21, 4:54 PM CSTSpecial Weather StatementLIXSaint John the Baptist36 min
Jan 21, 4:56 PM CSTSevere Thunderstorm WarningLIXSaint Charles19 min
Jan 21, 5:02 PM CSTTornado WarningLIXOrleans13 min
Jan 21, 5:11 PM CSTTornado WarningLIXSaint Charles7 min
Jan 21, 5:20 PM CSTSpecial Marine WarningLIX40 min
Jan 21, 5:42 PM CSTSpecial Marine WarningLIX33 min
Jan 21, 5:52 PM CSTSpecial Marine WarningLIX38 min

Nearby

Tornado Warnings in Mississippi, 2017Tornado Warnings in Louisiana, 2017Every tornado warning in 2017Tornadoes in 2017

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.