Alert archive / Louisiana / Tornado Warnings in 1994
Tornado Warning 1, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at May 17, 1994, 6:44 PM CDT for Saint Tammany Parish, Louisiana. It was in force for 31 min.
The area
The counties it named.
The facts
- Issued
- May 17, 1994, 6:44 PM CDT (23:44 UTC)
- Expired
- May 17, 1994, 7:15 PM CDT
- In force
- 31 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
County Saint Tammany Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 11.7 hours before the alert went out and 30 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
- 1003 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 636 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KNEW 172345 TORNEW LAC103-LAZ501-180015- BULLETIN - EBS ACTIVATION REQUESTED TORNADO AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 644 PM CDT TUE MAY 17 1994 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A TORNADO AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 715 PM CDT FOR RESIDENTS IN THE FOLLOWING PARISHES... IN SOUTHEAST LOUISIANA ...SOUTHEASTERN ST.TAMMANY PARISH AND FOR MARINE INTERESTS IN THE COASTAL WATERS AROUND... ...EASTERN LAKE PONCHARTRAIN REPORTS FROM THE PUBLIC HAVE INDICATED A WATERSPOUT OVER LAKE PONTCHARTRAIN. NATIONAL WEATHER SERVICE RADAR INDICATES THAT THIS STORM IS MOVING NORTH AND WILL COME ON SHORE ABOUT 10 MILES SOUTHWEST OF SLIDELL. THOSE NEAR THE SHORE OF LAKE PONTCHARTRAIN WHERE THIS STORM COMES A SHORE SHOULD TAKE COVER IF THREATENING CONDITIONS ARE OBSERVED. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER 6IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. &
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 17, 4:25 PM CDT, 2 hours 19 minutes before
LAZ038>040-045-053>070-172335- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 425 PM CDT TUE MAY 17 1994 AT 425 PM...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE OVER ST BERNARD PARISH. THE THUNDERSTORMS WERE MOVING WEST ABOUT 15 MILES AN HOUR. THEY WILL MOVE OVER THE BELLE CHASSE AND NEW ORLEANS AREAS. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...FREQUENT LIGHTNING... AND BRIEF PERIODS OF VERY HEAVY RAIN. LOCAL STREET FLOODING IS POSSIBLE. THUNDERSTORMS WITH VERY HEAVY RAIN WERE NEAR LAKE MAUREPAS...EXTENDING OVER THE BATON ROUGE AREA TO NEAR ST FRANCISVILLE. A LARGE AREA OF RAIN AND THUNDERSTORMS EXTENDED FROM BETWEEN SIMMESPORT...LAFAYETTE...AND BATON ROUGE...SOUTHEAST ACROSS SOUTHEAST LOUISIANA INTO THE COASTAL WATERS SOUTHWEST OF GRAND TO THE MOUTH OF THE MISSISSIPPI RIVER. THE AREA EXTENDED FAR OUT TO THE SOUTHEAST.
Special weather statement, May 17, 4:35 PM CDT, 2 hours 9 minutes before
LAZ038>040-045-053>070-172335- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE NEW ORLEANS LA 325 PM CDT TUE MAY 17 1994 AT 325 PM...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE OVER ST BERNARD PARISH. THE THUNDERSTORMS WERE MOVING WEST ABOUT 15 MILES AN HOUR. THEY WILL MOVE OVER THE BELLE CHASSE AND NEW ORLEANS AREAS. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...FREQUENT LIGHTNING... AND BRIEF PERIODS OF VERY HEAVY RAIN. LOCAL STREET FLOODING IS POSSIBLE. THUNDERSTORMS WITH VERY HEAVY RAIN WERE NEAR LAKE MAUREPAS...EXTENDING OVER THE BATON ROUGE AREA TO NEAR ST FRANCISVILLE. A LARGE AREA OF RAIN AND THUNDERSTORMS EXTENDED FROM BETWEEN SIMMESPORT...LAFAYETTE...AN D BATON ROUGE...SOUTHEAST ACROSS SOUTHEAST LOUISIANA INTO THE COASTAL WATERS SOUTHWEST OF GRAND TO THE MOUTH OF THE MISSISSIPPI RIVER. THE AREA EXTENDED FAR OUT TO THE SOUTHEAST.
Special weather statement, May 17, 4:37 PM CDT, 2 hours 7 minutes before
LAZ038>040-045-053>070-172335- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 325 PM CDT TUE MAY 17 1994 AT 325 PM...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE OVER ST BERNARD PARISH. THE THUNDERSTORMS WERE MOVING WEST ABOUT 15 MILES AN HOUR. THEY WILL MOVE OVER THE BELLE CHASSE AND NEW ORLEANS AREAS. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...FREQUENT LIGHTNING... AND BRIEF PERIODS OF VERY HEAVY RAIN. LOCAL STREET FLOODING IS POSSIBLE. THUNDERSTORMS WITH VERY HEAVY RAIN WERE NEAR LAKE MAUREPAS...EXTENDING OVER THE BATON ROUGE AREA TO NEAR ST FRANCISVILLE. A LARGE AREA OF RAIN AND THUNDERSTORMS EXTENDED FROM BETWEEN SIMMESPORT...LAFAYETTE...AND BATON ROUGE...SOUTHEAST ACROSS SOUTHEAST LOUISIANA INTO THE COASTAL WATERS SOUTHWEST OF GRAND TO THE MOUTH OF THE MISSISSIPPI RIVER. THE AREA EXTENDED FAR OUT TO THE SOUTHEAST.
Special weather statement, May 17, 4:39 PM CDT, 2 hours 5 minutes before
LAZ038>040-045-053>070-172335- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 425 PM CDT TUE MAY 17 1994 AT 425 PM...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE OVER ST BERNARD PARISH. THE THUNDERSTORMS WERE MOVING WEST ABOUT 15 MILES AN HOUR. THEY WILL MOVE OVER THE BELLE CHASSE AND NEW ORLEANS AREAS. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...FREQUENT LIGHTNING... AND BRIEF PERIODS OF VERY HEAVY RAIN. LOCAL STREET FLOODING IS POSSIBLE. THUNDERSTORMS WITH VERY HEAVY RAIN WERE NEAR LAKE MAUREPAS...EXTENDING OVER THE BATON ROUGE AREA TO NEAR ST FRANCISVILLE. A LARGE AREA OF RAIN AND THUNDERSTORMS EXTENDED FROM BETWEEN SIMMESPORT...LAFAYETTE...AND BATON& ROUGE...SOUTHEAST ACROSS SOUTHEAST LOUISIANA INTO THE COASTAL WATERS SOUTHWEST OF GRAND TO THE MOUTH OF THE MISSISSIPPI RIVER. THE AREA EXTENDED FAR OUT TO THE SOUTHEAST.
Special weather statement, May 17, 5:25 PM CDT, 1 hour 19 minutes before
LAZ038>040-045-053>070-172335- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW ORLEANS LA 525 PM CDT TUE MAY 17 1994 AT 525 PM...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE BETWEEN NEW ORLEANS...UPPER ST BERNARD PARISH...AND POINTE LA HACHE. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...FREQUENT LIGHTNING... AND LOCALLY HEAVY RAIN AS THEY MOVE WEST ABOUT 15 MILES AN HOUR. LOCAL STREET FLOODING IS POSSIBLE WITH THE BRIEF PERIODS OF VERY HEAVY RAIN. THUNDERSTORMS WITH VERY HEAVY RAIN WERE BETWEEN BATON ROUGE AND SIMMESPORT LOUISIANA. A LARGE AREA OF RAIN AND THUNDERSTORMS WAS OCCURRING BETWEEN LAFAYETTE...SIMMESPORT...AND AMITE LOUISIANA. THE AREA EXTENDED SOUTHEAST TO THE COAST AND FAR SOUTHEAST OVER THE COASTAL WATERS BETWEEN GRAND ISLE AND THE MOUTH OF THE MISSISSIPPI RIVER.
Special weather statement, May 17, 5:29 PM CDT, 1 hour 15 minutes before
LAZ038>040-045-053>070-172335- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW ORLEANS LA 525 PM CDT TUE MAY 17 1994 AT 525 PM...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE BETWEEN NEW ORLEANS...UPPER ST BERNARD PARISH...AND POINTE LA HACHE. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...FREQUENT LIGHTNING... AND LOCALLY HEAVY RAIN AS THEY MOVE WEST ABOUT 15 MILES AN HOUR. LOCAL STREET FLOODING IS POSSIBLE WITH THE BRIEF PERIODS OF VERY HEAVY RAIN. THUNDERSTORMS WITH VERY HEAVY RAIN WERE BETWEEN BATON ROUGE AND SIMMESPORT LOUISIANA. A LARGE AREA OF RAIN AND THUNDERSTORMS WAS OCCURRING BETWEEN LAFAYETTE...SIMMESPORT...AND AMITE LOUISIANA. THE AREA EXTENDED SOUTHEAST TO THE COAST AND FAR SOUTHEAST OVER THE COASTAL WATERS BETWEEN GRAND ISLE AND THE MOUTH OF THE MISSISSIPPI RIVER.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 2:45 PM CDT | Severe Thunderstorm Warning | LIX | Tangipahoa | 60 min |
Nearby
Tornado Warnings in Louisiana, 1994Every tornado warning in 1994Tornadoes 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.