Alert archive / Louisiana / Flash Flood Warnings in 1992
Flash Flood Warning 5, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood warning at Nov 24, 1992, 3:05 AM CST for Saint Tammany Parish, Louisiana. It was in force for 115 min.
The area
The counties it named.
The facts
- Issued
- Nov 24, 1992, 3:05 AM CST (09:05 UTC)
- Expired
- Nov 24, 1992, 5:00 AM CST
- In force
- 115 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 00:00Z, 9.1 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1021 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 238 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 240908 FFWNEW LAC103-241100- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 305 AM CST TUE NOV 24 1992 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 500 AM CST FOR RESIDENTS IN THE FOLLOWING PARISHES... IN SOUTHEAST LOUISIANA ...SOUTHEASTERN ST.TAMMANY PARISH BETWEEN 3 AND 5 INCHES OF RAIN HAVE BEEN RECEIVED IN THE SLIDELL AREA AND ADJACENT SOUTHEASTERN ST TAMMANY PARISH SINCE MIDNIGHT. REPORTS OF EXTENSIVE STREET FLOODING IN SLIDELL WITH SOME BUISNESSES IN THE FRONT STREET AREA RECEIVING WATER AS WELL AS A FEW VEHICLES IN THE COUNTRY CLUB SUBDIVISION. RAINFALL SHOULD BEGIN TO DIMINISH IN THE SLIDELL AREA AFTER 4 AM WITH AN ADDITIONAL ONE HALF INCH EXPECTED. MOTORISTS SHOULD AVOID DRIVING THROUGH FLOODED AREAS PARTICULARLY HIGHWAY UNDERPASSES AND NEAR DRAINAGE CANALS. STAY TUNED TO NOAA WEATHER RADIO AND THE COMMERCIAL MEDIA SHOULD FURTHER STATEMENTS BE ISSUED BY YOUR NATIONAL WEATHER SERVICE OFFICE. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATE R SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND.
What forecasters said that day
The local office's own words before this flash flood 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, Nov 23, 10:04 PM CST, 5 hours 1 minute before
LAZ006-008-009-240600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BATON ROUGE LA 1005 PM CST MON NOV 23 1992 ...THUNDERSTORMS WITH HAIL...HEAVY RAIN AND STRONG GUSTY WINDS WERE MOVING INTO EAST CENTRAL LOUISIANA... RADAR SHOWED STRONG THUNDERSTORM FROM ST LANDRY PARISH INTO POINTE COUPEE AND AVOYELLES PARIAHES. THUNDERSTORMS WILL CONTINUE DEVELOPING ACROSS ALL OF EAST CENTRAL LOUISIANA FOR THE NEXT SEVERAL HOURS. THESE THUNDERSTORMS WILL PRODUCE HAIL...STRONG GUSTY WINDS AND HEAVY RAIN AS THEY MOVE NORTHEAST AT 35 MPH. MARBLE SIZE HAIL WAS REPORTED BY THE ST. LANDRY PARISH SHERIFFS OFFICE NEAR SUNSET AND LEBEAU DURING THE PAST HOUR. PEOPLE IN THESE AREAS SHOULD BE ALERT FOR THREATENING WEATHER AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Nov 24, 1:54 AM CST, 1 hour 11 minutes before
LAZ008>010-012>014-MSZ010>014-ALZ016-240900- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW ORLEANS LA 140 AM CST TUE NOV 24 1992 SCATTERED STRONG THUNDERSTORMS WITHIN AN AREA OF WIDESPREAD RAIN CONTINUED OVER MUCH OF SOUTHEAST LOUISIANA...SOUTHERN MISSISSIPPI...SOUTHWEST ALABAMA AND THE ADJACENT COASTAL WATERS. THE HEAVIEST RAINFALL WAS LOCATED BETWEEN THIBODAUX AND NEW ORLEANS LOUISIANA EXTENDING NORTHEAST TO JUST EAST OF PICAYUNE MISSISSIPPI. STREET FLOODING IS LIKELY IN ORLEANS...JEFFESON AND ST TAMMANY PARISHES AS THE HEAVY THUNDERSTORM ACTIVITY CONTINUE. AT 145 AM STATE POLICE REPORTED EXTENSIVE STREET FLOODING ALONG SOUTH CLEARVIEW PARKWAY IN JEFFERSON PARI>SH. PERSONS IN FLOOD PRONE AREAS SHOULD REMAIN ALERT FOR FURTHER STATEMENTS CONCERNING THIS SITUATION SO THAT THEY CAN TAKE PROMPT ACTION SHOULD THE SITUATION WORSEN UNEXPECTEDLY. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR.
Special weather statement, Nov 24, 2:42 AM CST, 23 minutes before
LAZ008>010-012>014-MSZ010>014-ALZ016-241000- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW ORLEANS LA 240 AM CST TUE NOV 24 1992 SCATTERED STRONG THUNDERSTORMS WITHIN AN AREA OF WIDESPREAD RAIN CONTINUED OVER MUCH OF SOUTHEAST LOUISIANA...SOUTHERN MISSISSIPPI...SOUTHWEST ALABAMA AND THE ADJACENT COASTAL WATERS. THE HEAVIEST RAINFALL WAS LOCATED BETWEEN GOLDEN MEADOW AND GRAND ISLE EXTENDING NORTHEAST TO NEAR BRETON SOUND...AND ALSO ALONG THE MISSISSIPPI COAST NEAR BAY ST LOUIS AND GULFPORT. STREET FLOODING IS LIKELY IN ORLEANS...JEFFESON AND ST TAMMANY PARISHES AS THE THUNDERSTORM ACTIVITY CONTINUE. PERSONS IN FLOOD PRONE AREAS SHOULD REMAIN ALERT FOR FURTHER STATEMENTS CONCERNING THIS SITUATION SO THAT THEY CAN TAKE PROMPT ACTION SHOULD THE SITUATION WORSEN UNEXPECTEDLY. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 24, 9:23 AM CST | Severe Thunderstorm Warning | LIX | Saint Landry | 67 min |
| Nov 24, 2:15 PM CST | Severe Thunderstorm Warning | LIX | Iberia, St. Mary | 60 min |
Nearby
Flash Flood Warnings in Louisiana, 1992Every flash flood warning in 1992
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.