Alert archive / Louisiana / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 21, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Mar 26, 2005, 5:31 PM CST for Plaquemines Parish, Louisiana. It was in force for 59 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
- Mar 26, 2005, 5:31 PM CST (23:31 UTC)
- Expired
- Mar 26, 2005, 6:30 PM CST
- In force
- 59 min
- Issued by
- NWS New Orleans, LA
- Area
- Counties, with a storm outline in the text
County Plaquemines Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 11.5 hours before the alert went out and 88 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
- 507 J/kg
- Mixed-layer CIN
- -124 J/kg
- Mixed-layer LCL
- 655 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 249 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KLIX 262331
SVRLIX
LAC075-270030-
/O.NEW.KLIX.SV.W.0021.050326T2331Z-050327T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
531 PM CST SAT MAR 26 2005
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
PLAQUEMINES PARISH IN SOUTHEAST LOUISIANA
THIS INCLUDES THE CITY OF PORT SULPHUR
* UNTIL 630 PM CST
* AT 526 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL. THIS
STORM WAS LOCATED 17 MILES SOUTHWEST OF PORT SULPHUR...AND MOVING
NORTHEAST AT 45 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
EMPIRE AND PORT SULPHUR BY 545 PM CST
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCED
WARNING.
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...TO A SMALL INTERIOR ROOM SUCH AS A BATHROOM OR
CLOSET.
LAT...LON 2932 8984 2936 8988 2942 8984 2964 8949
2961 8953 2959 8951 2957 8956 2956 8951
2950 8952 2951 8959 2947 8951 2940 8948
2933 8964 2930 8965
$$2 follow-up statements
000
WWUS54 KLIX 262350
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
549 PM CST SAT MAR 26 2005
LAC075-270030-
/O.CON.KLIX.SV.W.0021.000000T0000Z-050327T0030Z/
PLAQUEMINES LA-
549 PM CST SAT MAR 26 2005
...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 630 PM CST FOR
PLAQUEMINES PARISH...
AT 544 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL TO QUARTER
SIZE HAIL. THIS STORM WAS LOCATED BETWEEN PORT SULPHUR AND EMPIRE...
MOVING NORTHEAST AT 45 MPH.
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CST SATURDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 1100 PM CST SATURDAY EVENING FOR
SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
LAT...LON 2932 8984 2936 8988 2942 8984 2964 8949
2961 8953 2959 8951 2957 8956 2956 8951
2950 8952 2951 8959 2947 8951 2940 8948
2933 8964 2930 8965
$$000
WWUS54 KLIX 270008
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
608 PM CST SAT MAR 26 2005
LAC075-270012-
/O.CAN.KLIX.SV.W.0021.000000T0000Z-050327T0030Z/
PLAQUEMINES LA-
608 PM CST SAT MAR 26 2005
...THE SEVERE THUNDERSTORM WARNING FOR PLAQUEMINES PARISH IS
CANCELLED...
THE THUNDERSTORMS THAT PROMPTED THE WARNING HAVE MOVED NORTHEAST
OVER BRETON SOUND.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CST SATURDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 1100 PM CST SATURDAY EVENING FOR
SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
LAT...LON 2932 8984 2936 8988 2942 8984 2964 8949
2961 8953 2959 8951 2957 8956 2956 8951
2950 8952 2951 8959 2947 8951 2940 8948
2933 8964 2930 8965
$$The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 26, 9:13 AM CST | Special Marine Warning | LIX | 62 min | |
| Mar 26, 1:40 PM CST | Severe Thunderstorm Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 54 min |
| Mar 26, 2:01 PM CST | Special Marine Warning | LIX | 59 min | |
| Mar 26, 2:36 PM CST | Severe Thunderstorm Warning | LIX | East Baton Rouge, East Feliciana | 39 min |
| Mar 26, 2:54 PM CST | Special Marine Warning | LIX | 96 min | |
| Mar 26, 3:04 PM CST | Severe Thunderstorm Warning | LIX | Saint Helena | 56 min |
| Mar 26, 3:23 PM CST | Severe Thunderstorm Warning | LIX | Tangipahoa, Washington | 52 min |
| Mar 26, 4:15 PM CST | Severe Thunderstorm Warning | LIX | Plaquemines, Saint Bernard | 45 min |
| Mar 26, 4:37 PM CST | Special Marine Warning | LIX | 83 min | |
| Mar 26, 5:16 PM CST | Severe Thunderstorm Warning | LIX | Jefferson, Lafourche | 29 min |
| Mar 26, 5:24 PM CST | Special Marine Warning | LIX | 66 min | |
| Mar 26, 5:52 PM CST | Special Marine Warning | LIX | 83 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2005Every severe thunderstorm warning in 2005
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.