Alert archive / Louisiana / Tornado Warnings in 1988
Tornado Warning 2, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at May 21, 1988, 11:10 AM CDT for Tangipahoa Parish, Louisiana. It was in force for 50 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 21, 1988, 11:10 AM CDT (16:10 UTC)
- Expired
- May 21, 1988, 12:00 PM CDT
- In force
- 50 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
County Tangipahoa Parish, LA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 21, 11:20 AM CDT | Thunderstorm Wind 0 | Tangipahoa, LA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Boothville, LA (KBVE), launched 12:00Z, 4.2 hours before the alert went out and 174 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
- 385 J/kg
- Mixed-layer CIN
- -208 J/kg
- Mixed-layer LCL
- 964 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KNEW 211612
TORNEW
LAC105-211700-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1110 AM CDT SAT MAY 21 1988
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL NOON CDT
FOR PEOPLE IN THE FOLLOWING PARISH...
IN SOUTHEAST LOUISIANA
...TANGIPAHOA
AT 1108 AM CDT A TORNADO WAS REPORTED ON THE GROUND JUST WEST OF
HAMMOND AT STATE SCHOOL ON HIGHWAY 190. REPORT WAS RECEIVED THROUGH
THE POLICE.
THUNDERSTORMS IN THE AREA ARE MOVING TO THE NORTHEAST.
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEGK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS.What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, May 21, 8:23 AM CDT, 2 hours 47 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BATON ROUGE LA 825 AM CDT SAT MAY 21 1988 ...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 11 AM FOR ST. LANDRY PARISH IN EAST CENTRAL LOUISIANA... RADAR SHOWED STRONG THUNDERSTORMS WITH VERY HEAVY RAIN FROM THE SOUTH PART OF IBERVILLE PARISH NORTHWEST TO NORTH OF OPELOUSAS IN ST. LANDRY PARISH. ANOTHER BAND OF STRONG THUNDERSTORMS WAS LOCATED FROM NEAR LAFAYETTE SOUTHWEST TO THE COASTAL WATERS SOUTH OF CROWLEY. MOVEMENT WAS NORTHEAST AT 25 MPH. THESE THUNDERSTORMS WILL BE MOVING INTO POINTE COUPEE AND IBERVILLE AND CONTINUING IN ST. LANDRY PARISH DURING THE NEXT COUPLE OF HOURS. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS sCONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PEOPLE IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, May 21, 9:48 AM CDT, 1 hour 22 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW ORLEANS LA 945 AM CDT SAT MAY 21 1988 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF SOUTHEAST LOUISIANA UNTIL 2 PM CDT... CLUSTERS OF STRONG THUNDERSTORMS WERE OCCURRING BETWEEN ALEXANDRIA AND HAMMOND EXTENDING SOUTH TO BETWEEN OPELOUSAS AND MORGAN CITY AND CONTINUING SOUTH INTO THE COASTAL WATERS. THE HEAVIEST ACTIVITY EXTENDED FROM SIMMESPORTS TO NEW IBERIA...AND JUST SOUTH OF BATON ROUGE. MOVEMENT WAS NORTH AT 30 MILES AN HOUR.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 9:31 AM CDT | Severe Thunderstorm Warning | LIX | East Baton Rouge | 44 min |
| May 21, 10:29 AM CDT | Severe Thunderstorm Warning | LIX | Tangipahoa | 46 min |
| May 21, 11:16 AM CDT | Tornado Warning | LIX | Saint Tammany | 44 min |
| May 21, 11:30 AM CDT | Severe Thunderstorm Warning | LIX | Lafourche, Saint Charles, Terrebonne | 60 min |
| May 21, 11:55 AM CDT | Severe Thunderstorm Warning | LIX | Orleans, Plaquemines, Saint Bernard | 2 hr |
| May 21, 11:55 AM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany, Washington | 2 hr |
| May 21, 11:55 AM CDT | Severe Thunderstorm Warning | LIX | Jefferson | 2 hr |
Nearby
Tornado Warnings in Louisiana, 1988Every tornado warning in 1988Tornadoes in 1988
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.