Alert archive / Louisiana / Flash Flood Warnings in 1992
Flash Flood Warning 8, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood warning at Dec 16, 1992, 2:31 PM CST for Saint Tammany Parish, Louisiana. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Dec 16, 1992, 2:31 PM CST (20:31 UTC)
- Expired
- Dec 16, 1992, 5:30 PM CST
- In force
- 3 hr
- 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, 8.5 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
- 787 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 135 m²/s²
- 0-3 km storm-relative helicity
- 200 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 162043 COR FFWNEW LAC051-057-071-075-087-103-109-162330- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING...CORRECTED FOR TYPOS NATIONAL WEATHER SERVICE NEW ORLEANS LA 231 PM CST WED DEC 16 1992 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 530 PM CST FOR RESIDENTS IN THE FOLLOWING PARISHESS... IN SOUTHEAST LOUISIANA ...JEFFERSON PARISH...SOUTHERN LAFOURCHE PARISH ...ORLEANS PARISH...NORTHERN PLAQUEMINES PARISH...ST.BERNARD PARISH ...SOUTHERN ST.TAMMANY PARISH...SOUTHERN TERREBONNE PARISH WEATHER SERVICE RARAR SHOWED A LARGE STATIONARY AREA OF RAIN WITH EMBEDDED SCATTERED THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDING FROM SLIDELL ACROSS THE NEW ORLEANS METROPOLITAN AREA...SOUTHERN LAFOURCHE AND TERREBONNE PARISHES. BETWEEN 2 AND 3 INCHES OF RAIN HAS FALLEN OVER THIS AREA DURING THE LAST FEW HOURS AND AN ADDITIONAL 3 INCHES OF RAIN IS POSSIBLE IN THE NEXT FEW HOURS. STREET FLOODING IS OCCURING ON THE WEST BANK OF JEFFERSON PARISH AND IN THE CITY OF NEW ORLEANS AT THIS TIME. 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 WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR dLOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP 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, Dec 16, 1:44 PM CST, 47 minutes before
LAZ008>010-012>014-MSZ010>014-ALZ016-162100- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW ORLEANS LA 145 PM CST WED DEC 16 1992 A CLUSTER OF SHOWERS THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUED ACROSS THE METROPOLITAN NEW ORLEANS AREA. THE HEAVY RAINFALL WILL SPREAD NORTHEAST INTO SOUTHERN ST. TAMMANY PARISH DURING THE NEXT HOUR. PEOPLE IN THE AREA...ESPECIALLY MOTORISTS...ARE ADVISED THAT FLOODING OF STREETS...UNDERPASSES...AND LOW LYING AREAS WILL OCCUR WITH THESE STORMS AND YOU SHOULD AVOID DRIVING THROUGH FLOODED AREAS. ELSEWHERE...SCATTERED SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY RAIN... CONTINUED ACROSS MUCH OF SOUTHEAST LOUISIANA AND EXTENDED NORTHEAST INTO SOUTHEAST MISSISSIPPI. THE SHOWERS AND 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 |
|---|---|---|---|---|
| Dec 16, 2:31 PM CST | Flash Flood Warning | LIX | Jefferson, Lafourche, Terrebonne | 3 hr |
| Dec 16, 2:31 PM CST | Flash Flood Warning | LIX | Orleans, Plaquemines, Saint Bernard | 3 hr |
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.