Alert archive / Louisiana / Tornado Warnings in 2017
Tornado Warning 69, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at May 12, 2017, 10:43 AM CDT for Jefferson Parish, Saint Charles Parish, Louisiana. It was in force for 19 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
- May 12, 2017, 10:43 AM CDT (15:43 UTC)
- Expired
- May 12, 2017, 11:02 AM CDT
- In force
- 19 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Jefferson Parish, LA, Saint Charles Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 12, 10:49 AM CDT | TSTM WND DMG | New Orleans Armstrong A, LA | CONFIRMATION OF A DELAYED REPORT... AN OUTDOOR SHED WAS BLOWN OVER DAMAGING NEARBY CARS. DOWN TREE LIMBS WERE ALSO IN THE AREA. TIME ESTIMATED BY RADAR. ASOS REPORTED A 43 MPH WIND GUST AT THE TIME AS WELL. |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 12, 10:35 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 3.7 hours before the alert went out and 58 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.
- Mixed-layer CAPE
- 1224 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 587 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.5
The text
As transmitted.
333
WFUS54 KLIX 121543
TORLIX
LAC051-089-121615-
/O.NEW.KLIX.TO.W.0069.170512T1543Z-170512T1615Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
1043 AM CDT FRI MAY 12 2017
The National Weather Service in New Orleans has issued a
* Tornado Warning for...
North central St. Charles Parish in southeastern Louisiana...
Northwestern Jefferson Parish in southeastern Louisiana...
* Until 1115 AM CDT
* At 1043 AM CDT, a severe thunderstorm capable of producing a
tornado was located over St. Rose, or near Hahnville, moving east
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...
Harahan, River Ridge and Waggaman around 1055 AM CDT.
Avondale, Jefferson, Elmwood and Bridge City around 1100 AM CDT.
Metairie and Westwego around 1105 AM CDT.
Marrero around 1110 AM CDT.
Other locations impacted by this tornadic thunderstorm include New
Orleans Armstrong 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.
&&
LAT...LON 2995 9037 3002 9036 3002 9012 3000 9012
2997 9013 2995 9014 2992 9013 2989 9013
TIME...MOT...LOC 1543Z 276DEG 28KT 2999 9033
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
CAB2 follow-up statements
100
WWUS54 KLIX 121550
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
1050 AM CDT FRI MAY 12 2017
LAC089-121559-
/O.CAN.KLIX.TO.W.0069.000000T0000Z-170512T1615Z/
St. Charles LA-
1050 AM CDT FRI MAY 12 2017
...THE TORNADO WARNING FOR NORTH CENTRAL ST. CHARLES PARISH IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A severe thunderstorm watch remains in effect until 400 PM CDT for
southeastern Louisiana.
LAT...LON 2994 9028 3002 9028 3002 9012 3000 9012
2995 9014 2992 9013 2989 9013
TIME...MOT...LOC 1549Z 275DEG 29KT 2998 9026
$$
LAC051-121615-
/O.CON.KLIX.TO.W.0069.000000T0000Z-170512T1615Z/
Jefferson LA-
1050 AM CDT FRI MAY 12 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 AM CDT FOR
NORTHWESTERN JEFFERSON PARISH...
At 1049 AM CDT, a severe thunderstorm capable of producing a tornado
was located over River Ridge, or near Metairie, moving east at 35
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...
Jefferson, Harahan and Elmwood around 1055 AM CDT.
Avondale and Bridge City around 1100 AM CDT.
Metairie, Marrero and Westwego around 1105 AM CDT.
Other locations impacted by this tornadic thunderstorm include New
Orleans Armstrong 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.
&&
LAT...LON 2994 9028 3002 9028 3002 9012 3000 9012
2995 9014 2992 9013 2989 9013
TIME...MOT...LOC 1549Z 275DEG 29KT 2998 9026
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
CAB449
WWUS54 KLIX 121602
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
1102 AM CDT FRI MAY 12 2017
LAC051-121611-
/O.CAN.KLIX.TO.W.0069.000000T0000Z-170512T1615Z/
Jefferson LA-
1102 AM CDT FRI MAY 12 2017
...THE TORNADO WARNING FOR NORTHWESTERN JEFFERSON PARISH IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been cancelled.
A severe thunderstorm watch remains in effect until 400 PM CDT for
southeastern Louisiana.
Severe threat has not ended yet as additional storms are still
possible over the next few hours.
LAT...LON 2994 9028 3002 9028 3002 9012 3000 9012
2995 9014 2992 9013 2989 9013
TIME...MOT...LOC 1601Z 276DEG 28KT 2997 9014
$$
CABThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 7:32 AM CDT | Special Weather Statement | LIX | East Feliciana, Saint Helena | 43 min |
| May 12, 8:15 AM CDT | Special Weather Statement | LIX | Iberville, West Baton Rouge | 60 min |
| May 12, 8:16 AM CDT | Special Weather Statement | LIX | Saint Helena | 44 min |
| May 12, 9:01 AM CDT | Special Weather Statement | LIX | Washington | 74 min |
| May 12, 9:04 AM CDT | Tornado Warning | LIX | Ascension, Iberville, Livingston | 41 min |
| May 12, 9:17 AM CDT | Special Weather Statement | LIX | Washington | 58 min |
| May 12, 9:31 AM CDT | Severe Thunderstorm Warning | LIX | Washington | 44 min |
| May 12, 9:47 AM CDT | Severe Thunderstorm Warning | LIX | Livingston | 19 min |
| May 12, 10:02 AM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany, Washington | 58 min |
| May 12, 10:09 AM CDT | Severe Thunderstorm Warning | LIX | Washington | 66 min |
| May 12, 10:13 AM CDT | Severe Thunderstorm Warning | LIX | Saint Charles, Saint John the Baptist | 32 min |
| May 12, 10:23 AM CDT | Special Marine Warning | LIX | 97 min | |
| May 12, 10:32 AM CDT | Severe Thunderstorm Warning | LIX | Saint Charles, Saint John the Baptist | 28 min |
| May 12, 10:40 AM CDT | Severe Thunderstorm Warning | LIX | Saint Charles | 35 min |
| May 12, 11:00 AM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Plaquemines | 45 min |
| May 12, 11:04 AM CDT | Tornado Warning | LIX | Jefferson, Plaquemines | 28 min |
| May 12, 11:10 AM CDT | Severe Thunderstorm Warning | LIX | Orleans, Saint Bernard | 65 min |
| May 12, 11:15 AM CDT | Special Marine Warning | LIX | 60 min | |
| May 12, 11:20 AM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 55 min |
| May 12, 11:30 AM CDT | Severe Thunderstorm Warning | LIX | Orleans | 30 min |
| May 12, 11:38 AM CDT | Special Marine Warning | LIX | 97 min | |
| May 12, 11:45 AM CDT | Severe Thunderstorm Warning | LIX | Plaquemines, Saint Bernard | 45 min |
| May 12, 12:03 PM CDT | Special Marine Warning | LIX | 57 min | |
| May 12, 12:56 PM CDT | Special Marine Warning | LIX | 94 min | |
| May 12, 1:39 PM CDT | Special Weather Statement | LIX | East Feliciana, Pointe Coupee, West Feliciana | 66 min |
| May 12, 2:22 PM CDT | Special Weather Statement | LIX | East Baton Rouge | 53 min |
| May 12, 2:36 PM CDT | Severe Thunderstorm Warning | LIX | East Baton Rouge | 39 min |
| May 12, 3:03 PM CDT | Special Weather Statement | LIX | Livingston | 57 min |
| May 12, 3:10 PM CDT | Severe Thunderstorm Warning | LIX | Livingston | 65 min |
| May 12, 3:20 PM CDT | Tornado Warning | LIX | Livingston | 25 min |
| May 12, 3:37 PM CDT | Severe Thunderstorm Warning | LIX | Livingston, Tangipahoa | 53 min |
| May 12, 3:43 PM CDT | Special Weather Statement | LIX | Saint Charles | 32 min |
| May 12, 4:02 PM CDT | Severe Thunderstorm Warning | LIX | Saint Helena, Tangipahoa | 43 min |
| May 12, 4:29 PM CDT | Severe Thunderstorm Warning | LIX | Ascension, Iberville, Livingston | 31 min |
| May 12, 4:37 PM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany | 23 min |
| May 12, 4:39 PM CDT | Special Weather Statement | LIX | Washington | 36 min |
| May 12, 4:51 PM CDT | Tornado Warning | LIX | Saint Tammany | 24 min |
| May 12, 4:55 PM CDT | Special Marine Warning | LIX | 50 min | |
| May 12, 5:02 PM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany | 28 min |
| May 12, 5:13 PM CDT | Severe Thunderstorm Warning | LIX | Ascension, Saint Charles, Saint James, Saint John the Baptist | 32 min |
| May 12, 5:15 PM CDT | Special Marine Warning | LIX | 45 min | |
| May 12, 5:29 PM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany | 31 min |
| May 12, 5:34 PM CDT | Special Marine Warning | LIX | 116 min | |
| May 12, 5:49 PM CDT | Special Weather Statement | LIX | Saint Charles | 26 min |
| May 12, 5:55 PM CDT | Special Marine Warning | LIX | 35 min | |
| May 12, 6:13 PM CDT | Severe Thunderstorm Warning | LIX | Orleans, Saint Bernard | 17 min |
| May 12, 6:27 PM CDT | Special Marine Warning | LIX | 33 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.