Alert archive / Louisiana / Flash Flood Warnings in 1997
Flash Flood Warning 2, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood warning at Apr 11, 1997, 11:00 AM CDT for Assumption Parish, Louisiana. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 11, 1997, 11:00 AM CDT (16:00 UTC)
- Expired
- Apr 11, 1997, 3:00 PM CDT
- In force
- 4 hr
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
County Assumption Parish, LA
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 4.0 hours before the alert went out and 207 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
- 723 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 601 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 205 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KNEW 111602 FFWNEW LAC007-112000- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 1100 AM CDT FRI APR 11 1997 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 300 PM CDT FOR RESIDENTS IN THE FOLLOWING LOCATION... IN SOUTHEAST LOUISIANA ...SOUTHERN ASSUMPTION PARISH AT 1045 AM ASSUMPTION OFFICE OF EMERGENCY PREPAREDNESS REPORTED A LEVEE FAILURE IN THE VICINITY OF LABADIEVILLE. EMERGENCY MANAGEMENT REPORTED 10 TO 15 HOUSES HAVE BEEN FLOODED WITH SEVERAL MORE THREATENED. ASSUMPTION PARISH OFFICIALS ARE CURRENTLY INVESTIGATING THE EXTENT OF DAMAGE AND IMPACT ON AREA. RESIDENTS OF ASSUMPTION PARISH ESPECIALLY NEAAROUND LABADIEVILLE SHOULD MONITOR ADVICE FROM LOCAL AUTHORITIES AND TAKE APPROPRIATE ACTION TO PROTECT LIFE AND PROPERTY. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW 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.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 9:29 AM CDT | Severe Thunderstorm Warning | LIX | Assumption, Lafourche, Saint James | 46 min |
| Apr 11, 9:36 AM CDT | Severe Thunderstorm Warning | LIX | Terrebonne | 69 min |
| Apr 11, 10:14 AM CDT | Severe Thunderstorm Warning | LIX | Lafourche, Saint James, Saint John the Baptist | 46 min |
| Apr 11, 10:27 AM CDT | Severe Thunderstorm Warning | LIX | Lafourche | 48 min |
| Apr 11, 10:45 AM CDT | Severe Thunderstorm Warning | LIX | Saint Charles | 45 min |
| Apr 11, 11:09 AM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Orleans, Plaquemines | 66 min |
| Apr 11, 11:09 AM CDT | Severe Thunderstorm Warning | LIX | Saint Bernard | 66 min |
| Apr 11, 11:26 AM CDT | Tornado Warning | LIX | Jefferson, Lafourche | 34 min |
| Apr 11, 11:31 AM CDT | Severe Thunderstorm Warning | LIX | Tangipahoa | 44 min |
| Apr 11, 11:49 AM CDT | Tornado Warning | LIX | Saint Tammany, Tangipahoa | 26 min |
| Apr 11, 12:12 PM CDT | Tornado Warning | LIX | Saint Tammany, Tangipahoa | 33 min |
| Apr 11, 12:17 PM CDT | Severe Thunderstorm Warning | LIX | Orleans, Plaquemines, Saint Bernard | 43 min |
| Apr 11, 12:32 PM CDT | Severe Thunderstorm Warning | LIX | Washington | 43 min |
| Apr 11, 12:59 PM CDT | Severe Thunderstorm Warning | LIX | Plaquemines, Saint Bernard | 46 min |
Nearby
Flash Flood Warnings in Louisiana, 1997Every flash flood warning in 1997
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.