Alert archive / Louisiana / Flash Flood Warnings in 1997
Flash Flood Warning 16, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood warning at Jun 17, 1997, 12:56 PM CDT for 4 parishes in 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
- Jun 17, 1997, 12:56 PM CDT (17:56 UTC)
- Expired
- Jun 17, 1997, 5:00 PM CDT
- In force
- 4 hr
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Ascension Parish, LA, East Baton Rouge Parish, LA, Iberville Parish, LA, West Baton Rouge Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 5.9 hours before the alert went out and 141 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
- 3339 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 539 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 8.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KNEW 171755 FFWNEW LAC005-033-047-121-172200- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 1256 PM CDT TUE JUN 17 1997 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 500 PM CDT FOR RESIDENTS IN THE FOLLOWING LOCATIONS... IN SOUTHEAST LOUISIANA ...ASCENSION PARISH...EAST BATON ROUGE PARISH ...IBERVILLE PARISH...WEST BATON ROUGE PARISH AT 1250 PM CDT WEATHER RADAR CONTINUES TO SHOW A LARGE AREA OF VERY HEAVY RAIN CONTINUES ACROSS IBERVILLE AND ASCENSION PARISHES. IBERVILLE EMERGENCY MANAGEMENT REPORTS HIGHWAY 1 IN WHITECASTE IS IMPASSBLE FROM FLOOD WATERS. IN ADDITION...ABOUT 6 HOMES WERE INUNDATED IN PLAQUEMINE. IN EAST BATON ROUGE EMERGENCY MANAGEMENT REPORTS NUMEROUS STREETS AND THE I-10 INTERCHANGE NEAR THE GOVERNORS MANSION WAS FLOODED. 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. &
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, Jun 17, 10:53 AM CDT, 2 hours 3 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-171600- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1100 AM CDT TUE JUN 17 1997 A SLIGHT RISK OF SEVERE THUNDERSTORMS ARE EXPECTED OVER THE AREA. SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED OVER THE REGION THIS AFTERNOON AND EVENING. A MIXTURE OF ABUNDANT MOISTURE...UPPER AIR DISTURBANCES...AND INSTABILITY WILL GENERATE SCATTERED TO NUMEROUS THUNDERSTORMS OVER THE REGION THIS AFTERNOON AND EVENING. SOME OF THESE THUNDERSTORMS ARE EXPECTED TO GENERATE STRONG WINDS AND HEAVY RAINFALL AMOUNTS OF 3 TO 5 INCHES OR MORE. 15
Special weather statement, Jun 17, 11:00 AM CDT, 1 hour 56 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-171600- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1100 AM CDT TUE JUN 17 1997 A SLIGHT RISK OF SEVERE THUNDERSTORMS ARE EXPECTED OVER THE AREA. SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED OVER THE REGION THIS AFTERNOON AND EVENING. A MIXTURE OF ABUNDANT MOISTURE...UPPER AIR DISTURBANCES...AND INSTABILITY WILL GENERATE SCATTERED TO NUMEROUS THUNDERSTORMS OVER THE REGION THIS AFTERNOON AND EVENING. SOME OF THESE THUNDERSTORMS ARE EXPECTED TO GENERATE STRONG WINDS AND HEAVY RAINFALL AMOUNTS OF 3 TO 5 INCHES OR MORE. 15
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 9:47 AM CDT | Flash Flood Warning | LIX | East Baton Rouge, Iberville, West Baton Rouge | 3 hr |
| Jun 17, 4:55 PM CDT | Flash Flood Warning | LIX | Ascension, Iberville | 3 hr |
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.