Alert archive / Louisiana / Tornado Warnings in 2017

Tornado Warning 15, NWS New Orleans, LA

February 7, 20176 parishes in Louisiana

NWS New Orleans, LA issued this tornado warning at Feb 7, 2017, 7:45 AM CST for 6 parishes in Louisiana. It was in force for 30 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
Feb 7, 2017, 7:45 AM CST (13:45 UTC)
Expired
Feb 7, 2017, 8:15 AM CST
In force
30 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties East Baton Rouge Parish, LA, East Feliciana Parish, LA, Iberville Parish, LA, Pointe Coupee Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 1.8 hours before the alert went out and 164 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 12:00Z on 2017-02-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1751 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 12:00Z on 2017-02-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 219 square meters per square second.1939587897117Sfc1 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
1751 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
506 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
219 m²/s²
0-3 km storm-relative helicity
251 m²/s²
Significant tornado parameter
2.0
Supercell composite
8.9

Open this sounding in Storm Lab

The text

As transmitted.

887 
WFUS54 KLIX 071345
TORLIX
LAC033-037-047-077-121-125-071415-
/O.NEW.KLIX.TO.W.0015.170207T1345Z-170207T1415Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
745 AM CST TUE FEB 7 2017

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Southeastern Pointe Coupee Parish in southeastern Louisiana...
  Northwestern Iberville Parish in southeastern Louisiana...
  Northwestern East Baton Rouge Parish in southeastern Louisiana...
  Southwestern East Feliciana Parish in southeastern Louisiana...
  Southeastern West Feliciana Parish in southeastern Louisiana...
  West Baton Rouge Parish in southeastern Louisiana...

* Until 815 AM CST
    
* At 745 AM CST, a severe thunderstorm capable of producing a tornado
  was located over Atchafalaya National Wildlife Refuge, or 8 miles
  southeast of Krotz Springs, moving northeast at 30 mph.

  HAZARD...Tornado and quarter 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...
  Lottie around 755 AM CST. 
  Ramah around 800 AM CST. 
  Maringouin around 805 AM CST. 
  Livonia, Rosedale and Grosse Tete around 810 AM CST. 
  Erwinville around 815 AM CST. 

Other locations impacted by this tornadic thunderstorm include Baton
Rouge Airport.

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.

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 3081 9123 3043 9112 3033 9163 3035 9163
      3036 9165 3039 9162 3044 9164 3048 9168
      3048 9169 3050 9170 3050 9175
TIME...MOT...LOC 1345Z 240DEG 26KT 3044 9167 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

32
1 follow-up statement
287 
WWUS54 KLIX 071402
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
802 AM CST TUE FEB 7 2017

LAC033-037-047-077-121-125-071415-
/O.CON.KLIX.TO.W.0015.000000T0000Z-170207T1415Z/
Pointe Coupee LA-Iberville LA-East Baton Rouge LA-East Feliciana LA-
West Feliciana LA-West Baton Rouge LA-
802 AM CST TUE FEB 7 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 AM CST FOR
SOUTHEASTERN POINTE COUPEE...NORTHWESTERN IBERVILLE...NORTHWESTERN
EAST BATON ROUGE...SOUTHWESTERN EAST FELICIANA...SOUTHEASTERN WEST
FELICIANA AND WEST BATON ROUGE PARISHES...
    
At 802 AM CST, a severe thunderstorm capable of producing a tornado
was located over Maringouin, or 13 miles east of Krotz Springs,
moving northeast at 30 mph.

HAZARD...Tornado and quarter 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...
  Rosedale and Grosse Tete around 805 AM CST. 
  Erwinville around 815 AM CST. 

Other locations impacted by this tornadic thunderstorm include Baton
Rouge Airport.

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.

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 3081 9123 3043 9112 3033 9163 3035 9163
      3036 9165 3039 9162 3044 9164 3048 9168
      3048 9169 3050 9170 3050 9175
TIME...MOT...LOC 1402Z 240DEG 27KT 3050 9153 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

32

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 7, 6:27 AM CSTSpecial Weather StatementLIXAscension, Livingston, Saint Helena, Tangipahoa63 min
Feb 7, 7:35 AM CSTTornado WarningLIXPointe Coupee, West Feliciana55 min
Feb 7, 8:13 AM CSTTornado WarningLIXEast Baton Rouge, East Feliciana, Pointe Coupee, West Baton Rouge32 min
Feb 7, 8:20 AM CSTSpecial Weather StatementLIXEast Feliciana25 min
Feb 7, 8:41 AM CSTTornado WarningLIXEast Baton Rouge, East Feliciana, Livingston34 min
Feb 7, 8:45 AM CSTSpecial Weather StatementLIXIberville30 min
Feb 7, 9:01 AM CSTSpecial Weather StatementLIXWashington29 min
Feb 7, 9:05 AM CSTTornado WarningLIXAscension, Iberville25 min
Feb 7, 9:09 AM CSTTornado WarningLIXEast Baton Rouge, East Feliciana, Livingston, Saint Helena36 min
Feb 7, 9:13 AM CSTSpecial Weather StatementLIXPointe Coupee32 min
Feb 7, 9:20 AM CSTTornado WarningLIXTangipahoa, Washington25 min
Feb 7, 9:26 AM CSTTornado WarningLIXAscension, Iberville, Livingston34 min
Feb 7, 9:43 AM CSTTornado WarningLIXWashington47 min
Feb 7, 9:49 AM CSTTornado WarningLIXEast Baton Rouge, West Baton Rouge26 min
Feb 7, 9:52 AM CSTTornado WarningLIXPointe Coupee, West Feliciana23 min
Feb 7, 9:59 AM CSTTornado WarningLIXLivingston, Tangipahoa31 min
Feb 7, 10:06 AM CSTTornado WarningLIXSaint Helena, Tangipahoa, Washington24 min
Feb 7, 10:12 AM CSTTornado WarningLIXEast Baton Rouge, Livingston, Saint Helena33 min
Feb 7, 10:16 AM CSTTornado WarningLIXPointe Coupee, West Feliciana29 min
Feb 7, 10:19 AM CSTTornado WarningLIXJefferson, Lafourche, Saint Charles26 min
Feb 7, 10:21 AM CSTTornado WarningLIXPointe Coupee, West Feliciana24 min
Feb 7, 10:23 AM CSTSpecial Marine WarningLIX37 min
Feb 7, 10:28 AM CSTTornado WarningLIXAscension, Iberville32 min
Feb 7, 10:32 AM CSTTornado Warning Tornado observedConsiderable damage threatLIXLivingston, Saint John the Baptist, Saint Tammany, Tangipahoa28 min
Feb 7, 10:36 AM CSTTornado WarningLIXEast Baton Rouge, East Feliciana, Pointe Coupee, West Feliciana24 min
Feb 7, 10:40 AM CSTTornado WarningLIXLivingston, Saint Helena, Tangipahoa35 min
Feb 7, 10:43 AM CSTSevere Thunderstorm WarningLIXJefferson, Orleans, Saint Charles32 min
Feb 7, 10:44 AM CSTSpecial Marine WarningLIX46 min
Feb 7, 10:52 AM CSTTornado WarningLIXJefferson, Orleans, Saint Bernard23 min
Feb 7, 10:55 AM CSTTornado Warning EmergencyTornado observedCatastrophic damage threatLIXSaint Tammany, Tangipahoa35 min
Feb 7, 10:58 AM CSTTornado WarningLIXEast Baton Rouge, East Feliciana, Pointe Coupee, West Feliciana32 min
Feb 7, 10:59 AM CSTTornado WarningLIXAscension, Iberville, Livingston, Saint James31 min
Feb 7, 11:02 AM CSTSpecial Marine WarningLIX43 min
Feb 7, 11:14 AM CSTTornado WarningLIXOrleans31 min
Feb 7, 11:27 AM CSTTornado Warning Tornado observedLIXAscension, Saint James, Saint John the Baptist33 min
Feb 7, 11:29 AM CSTTornado WarningLIXEast Baton Rouge, East Feliciana, Livingston, Saint Helena31 min
Feb 7, 11:37 AM CSTSpecial Weather StatementLIXSaint Tammany38 min
Feb 7, 11:39 AM CSTSpecial Weather StatementLIXWashington36 min
Feb 7, 11:42 AM CSTSpecial Marine WarningLIX48 min
Feb 7, 11:48 AM CSTSpecial Marine WarningLIX27 min
Feb 7, 11:55 AM CSTTornado Warning Tornado observedLIXSaint John the Baptist11 min
Feb 7, 11:56 AM CSTTornado WarningLIXLivingston, Saint Helena, Tangipahoa34 min
Feb 7, 11:59 AM CSTTornado WarningLIXJefferson, Orleans, Plaquemines, Saint Bernard, Saint Charles31 min
Feb 7, 12:16 PM CSTSpecial Marine WarningLIX44 min
Feb 7, 12:23 PM CSTTornado WarningLIXOrleans, Saint Bernard22 min
Feb 7, 12:25 PM CSTTornado Warning Tornado observedLIXLivingston, Saint Helena, Tangipahoa35 min
Feb 7, 12:32 PM CSTSpecial Marine WarningLIX43 min
Feb 7, 12:33 PM CSTSpecial Marine WarningLIX42 min
Feb 7, 12:57 PM CSTTornado WarningLIXSaint Tammany, Tangipahoa, Washington33 min
Feb 7, 1:07 PM CSTSpecial Marine WarningLIX38 min
Feb 7, 1:11 PM CSTSpecial Marine WarningLIX34 min
Feb 7, 1:12 PM CSTSpecial Marine WarningLIX33 min
Feb 7, 1:26 PM CSTTornado WarningLIXSaint Tammany, Washington34 min
Feb 7, 1:40 PM CSTSpecial Marine WarningLIX50 min
Feb 7, 1:41 PM CSTSpecial Marine WarningLIX34 min
Feb 7, 1:51 PM CSTSpecial Marine WarningLIX24 min
Feb 7, 1:58 PM CSTSevere Thunderstorm WarningLIXSaint Tammany32 min
Feb 7, 2:29 PM CSTSpecial Marine WarningLIX46 min
Feb 7, 3:03 PM CSTSmall Craft AdvisoryLIX7 hr
Feb 7, 3:13 PM CSTSpecial Marine WarningLIX47 min

Nearby

Tornado 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.