Alert archive / Louisiana / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 14, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Feb 23, 1994, 1:21 PM CST for Jefferson Parish, Plaquemines Parish, Louisiana. It was in force for 69 min.
The area
The counties it named.
The facts
- Issued
- Feb 23, 1994, 1:21 PM CST (19:21 UTC)
- Expired
- Feb 23, 1994, 2:30 PM CST
- In force
- 69 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Jefferson Parish, LA, Plaquemines Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 7.4 hours before the alert went out and 75 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
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 51 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 51 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 51 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, 12:49 PM CST | Severe Thunderstorm Warning | LIX | Lafourche, Terrebonne | 56 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.