Alert archive / Louisiana / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 13, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Feb 23, 1994, 12:49 PM CST for Lafourche Parish, Terrebonne Parish, Louisiana. It was in force for 56 min.
The area
The counties it named.
The facts
- Issued
- Feb 23, 1994, 12:49 PM CST (18:49 UTC)
- Expired
- Feb 23, 1994, 1:45 PM CST
- In force
- 56 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Lafourche Parish, LA, Terrebonne Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 6.8 hours before the alert went out and 128 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
- 1149 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 592 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KNEW 231849 SVRLIX LAC057-109-231945- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 1249 PM CST WED FEB 23 1994 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 145 PM CST FOR RESIDENTS IN THE FOLLOWING PARISHESS... IN SOUTHEAST LOUISIANA ...SOUTHERN LAFOURCHE PARISH...EASTERN TERREBONNE PARISH AND THE ADJACENT COASTAL WATERS OF SOUTHEAST LOUISIANA. AT 1248 CST NATIONAL WEATHER SERVICE RADAR INDICATED A STRONG THUNDERSTORM LOCATED NEAR THE COAST IN THE COCODRIE AREA MOVING TOWARD THE EAST-NORTHEAST AT 35 MPH. THIS THUNDERSTORM WILL MOVE ACROSS EASTERN TERREBONNE AND SOUTHERN LAFOURCHE PARISHES DURING THE NEXT HOUR. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
What forecasters said that day
The local office's own words before this severe thunderstorm 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, Feb 23, 7:30 AM CST, 5 hours 19 minutes before
LAZ038>040-045-046-049>070-LAZ501-LAZ502-231445- SPECIAL WEATHER STATEMENT AND RADAR STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 730 AM CST WED FEB 23 1994 AT 725 AM A BAND OF RAIN SHOWERS AND THUNDERSTORMS...SOME STRONG WITH HEAVY RAINFALL WAS OCCURRING FROM VERMILION BAY NORTHEAST BEWTEEN LAKE MAUREPAS AND BATON ROUGE AND ON NORTHEAST TO BETWEEN MCCOMB MISSISSIPPI AND BOGALUSA LOUISIANA. ANOTHER NARROWER BAND EXTENDED FROM COVINGTON TO PICAYUNE MISSISSIPPI AND THEN ACROSS SOUTHEAST MISSISSIPPI TO THE ALABAMA STATE LINE EAST OF HATTIESBURG. THE STRONGEST STORMS IN SOUTHEAST LOUISIANA WERE ABOUT 10 MILES NORTHWEST OF HAMMOND AND FROM COVINGTON LOUISIANA TO PICAYUNE MISSISSIPPI. THE STRONGER STORMS COULD PRODUCE STRONG GUSTY WINDS...BRIEF HEAVY RAIN PRODUCING SOME STREET FLOODING...DANGEROUS LIGHTNING AND POSSIBLY SOME SMALL HAIL. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR.
Special weather statement, Feb 23, 8:30 AM CST, 4 hours 19 minutes before
LAZ038>040-045-046-049>070-LAZ501-LAZ502-231600- SPECIAL WEATHER STATEMENT AND RADAR STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 830 AM CST WED FEB 23 1994 AT 730 AM A LINE OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN CONTINUED FROM VERMILION BAY NORTHEAST BETWEEN BATON ROUGE AND LAKE PONTCHARTRAIN AND CONTINUED NORTHEAST INTO MISSISSIPPI BETWEEN HATTIESBURG AND PASCAGOULA. . THE STRONGER STORMS COULD PRODUCE STRONG GUSTY WINDS...BRIEF HEAVY RAIN PRODUCING SOME STREET FLOODING...DANGEROUS LIGHTNING AND POSSIBLY SOME SMALL HAIL. SCATTERED SHOWERS AND THUNDERSTORMS WERE ALSO OCCURRING OVER SOUTHEAST LOUISIANA BETWEEN LAFAYETTE AND SIMMESPORT EXTENDING EAST BETWEEN MCCOMB MISSISSIPPI AND BOGALUSA LOUISIANA. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR.
Special weather statement, Feb 23, 9:30 AM CST, 3 hours 19 minutes before
LAZ038>040-045-046-049>070-LAZ501-LAZ502-231700- SPECIAL WEATHER STATEMENT AND RADAR STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 930 AM CST WED FEB 23 1994 AN AREA OF SCATTERED SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY RAIN CONTINUED OVER SOUTHEAST LOUISIANA BETWEEN SIMMESPORT AND VERMILION BAY EXTENDING EAST BETWEEN BOGALUSA AND NEW ORLEANS. THE STRONGER STORMS COULD PRODUCE STRONG GUSTY WINDS...HEAVY RAIN ...SOME STREET FLOODING...DANGEROUS LIGHTNING AND POSSIBLY SOME SMALL HAIL. SCATTERED SHOWERS AND THUNDERSTORMS...SOME STRONG WERE ALSO OCCURRING OVER THE COASTAL WATERS 30 TO 50 MILES SOUTH OF BOOTHVILLE EXTENDING EAST FOR ABOUT 60 MILES. SCATTERED SHOWERS WERE OCCURRING OVER SOUTHERN MISSISSIPPI AND EXTREME SOUTHWEST ALABAMA. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 23, 1:21 PM CST | Severe Thunderstorm Warning | LIX | Jefferson, Plaquemines | 69 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 1994Every severe thunderstorm warning in 1994
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.