Alert archive / Louisiana / Flash Flood Warnings in 1997
Flash Flood Warning 17, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood warning at Jun 17, 1997, 4:55 PM CDT for Ascension Parish, Iberville Parish, Louisiana. It was in force for 3 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, 4:55 PM CDT (21:55 UTC)
- Expired
- Jun 17, 1997, 8:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Ascension Parish, LA, Iberville Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 9.9 hours before the alert went out and 137 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 172159 FFWNEW LAC005-047-180100- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 455 PM CDT TUE JUN 17 1997 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 800 PM CDT FOR RESIDENTS IN THE FOLLOWING LOCATIONS... IN SOUTHEAST LOUISIANA ...ASCENSION PARISH...IBERVILLE PARISH AT 450 PM CDT DOPPLER RADAR CONTINUED TO INDICATE A BAND OF STRONG THUNDERSTORMS WITH LOCALLY HEAVY RAIN MOVING EAST INTO IBERVILLE AND ASCENSION PARISHES. SHERIFFS OFFICES HAVE INDICATED FLOODING OF HIGHWAY 1 IN THE WHITE CASTLE AREA OF IBERVILLE PARISH WITH WATER IN HOMES IN THE PLAQUEMINE AND SAINT GABRIEL AREA. ABOUT 12 HOMES HAVE REPORTED WATER IN THEM AS OF LATE THIS AFTERNOON. IN THE EASTERN PORTION OF ASCENSION PARISH MAINLY EAST OF THE RIVER ABOUT 23 STREETS AND ROADS ARE CLOSED DUE TO HIGH WATER. STORM TOTALS ACCORDING TO RADAR IS NOW 7.6 INCHES IN IBERVILLE PARISH. A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL AROUND MIDNIGHT FOR SOUTHEAST AND SOUTH CENTRAL LOUISIANA AS WELL AS SOUTH MISSISSIPPI. 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 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. &
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, 11:00 AM CDT, 5 hours 55 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
Local storm report, Jun 17, 4:11 PM CDT, 44 minutes before
PRELIMINARY LOCAL STORM REPORTS
NATIONAL WEATHER SERVICE NEW ORLEANS LA
404 PM CDT TUE JUN 17 1997
TIME(CDT) .....CITY LOCATION...... STATE ...EVENT/REMARKS...
....COUNTY LOCATION......
0900 AM MARINGOUIN LA WIND DAMAGE
06/17/07 IBERVILLE TREE BLOWN DOWN
0950 AM SUMMIT MS WIND DAMAGE
06/17/97 PIKE NUMEROUS TREES, POWER LINES
DOWN. ONE HOME AND BUSINESS
DAMAGED. SOURCE PIKE CD.
1138 AM WHITECASTLE LA FLOODING
06/17/97 IBERVILLE LA HIGHWAY 1 IMPASSABLE DUE TO
FLOOD WATERS. ROAD WAS
BARRICADED BY POLICE. SOURCE
EMERGENCY MANAGEMENT.
1138 AM PLAQUEMINE LA FLOODING
06/17/97 IBERVILLE A FEW HOMES WERE FLOODED IN
PLAQUEMINE. SOURCE: EMERGENCY
MANAGEMENT.
1225 PM BATON ROUGE LA FLOODING
06/17/97 EAST BATON ROUGE AIRLINE HIGHWAY NEAR THE BATON
ROUGE AIPORT WAS FLOODED.
SOURCE: LA OEP
1247 PM BATON ROUGE LA FLOODING
06/17/97 EAST BATON ROUGE I-10 EXIT NEAR GOVERNORS
MANSION AND SEVERAL STREETS
IN BATON ROUGE FLOODED.
SOURCE: LA OEP
1250 PM PRAIRIEVILLE LA FLOODING
06/17/97 ASCENSION SOME STREETS WERE FLOODED BY
ABOUT 1 FOOT OF WATER IN
PRAIRIEVILLE. SOURCE: LA OEP
10The 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, 12:56 PM CDT | Flash Flood Warning | LIX | Ascension, East Baton Rouge, Iberville, West Baton Rouge | 4 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.