Alert archive / Mississippi / Flash Flood Warnings in 1997

Flash Flood Warning 12, NWS New Orleans, LA

April 27, 1997Pike County, Walthall County, Mississippi

NWS New Orleans, LA issued this flash flood warning at Apr 27, 1997, 11:35 AM CDT for Pike County, Walthall County, Mississippi. 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 27, 1997, 11:35 AM CDT (16:35 UTC)
Expired
Apr 27, 1997, 3:30 PM CDT
In force
4 hr
Issued by
NWS New Orleans, LA
Area
Whole counties

Counties Pike County, MS, Walthall County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 4.6 hours before the alert went out and 114 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.

Skew-T log-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 1997-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 172 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 1997-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 462 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
172 J/kg
Mixed-layer CIN
-153 J/kg
Mixed-layer LCL
624 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
462 m²/s²
0-3 km storm-relative helicity
568 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KNEW 271635 RRA
FFWNEW
MSC113-147-272030-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1135 AM CDT SUN APR 27 1997
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
FLASH FLOOD WARNING    EFFECTIVE UNTIL  330 PM CDT
FOR RESIDENTS IN THE FOLLOWING LOCATIONS...
 
IN SOUTH MISSISSIPPI
 
   ...PIKE COUNTY...WALTHALL COUNTY
 
PIKE COUNTY CIVIL DEFENSE REPORTED AT 1125 AM CDT THAT FLOODING
WAS IMMINENT OR ALREADY OCCURRING OVER THE ENTIRE COUNTY DUE TO
UP TO 5 INCHES OR MORE OF RAINFALL DURING THE PAST 6 TO 12 HOURS.
 
MANY STREETS AND HIGHWAYS WERE UNDER HIGH WATER AND SOME HOMES AND
BUSINESSES REPORTED WATER IN THEM WITH SOME EVACUATIONS UNDERWAY.
 
RADAR ALSO INDICATED 3 TO 5 INCHES OF RAIN OVER WALTHALL COUNTY.
FLOODING OF STREETS AND HIGHWAYS IN WALTHALL COUNTY WAS EITHER
OCCURRING OR IMMINENT.  SOME HOMES AND BUSINESSES MAY BE THREATENED
WITH HIGH WATER.
 
ALL PERSONS ARE URGED TO REMAIN INDOORS AND NOT VENTURE ONTO THE
STREETS AND HIGHWAYS FOR THE NEXT SEVERAL HOURS.
 
A FLASH FLOOD WATCH REMAINS IN EFFECT TODAY AND A TORNADO WATCH
IS IN EFFECT UNTIL 3 PM THIS AFTERNOON.
 
 
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

Local storm report, Apr 27, 11:10 AM CDT, 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LOUISIANA
1110 AM CDT SUN APR 27 1997

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH LOCATION....

0158 AM    ERWINVILLE                LA   WIND DAMAGE
04/26/97   WEST BATON ROUGE               PARISH SHERIFFS OFFICE
                                          REPORTED TRAILER BLOWN
                                          OVER NEAR HIGHWAY 190.

0215 AM    BATON ROUGE               LA   WIND DAMAGE
04/26/97   EAST BATON ROUGE               WEATHER SERVICE EMPLOYEE
                                          REPORTED TREES DOWN ON
                                          3 AUTOMOBILES.

0240 AM    DONALDSONVILLE            LA   WIND DAMAGE
04/26/97   ASCENSION                      PARISH SHERIFFS OFFICE
                                          REPORTED TREES DOWN ON
                                          HIGHWAY 1.

0245 AM                              LA   WIND DAMAGE
04/26/97   LAFOUCHE                       LAFOUCHE EMERGENCY
                                          MANAGEMENT REPORTED
                                          ROOF BLOWN OFF..TREES
                                          DOWN AND LIMITED POWER
                                          OUTAGES.

0305 AM    HARVEY                    LA   WIND DAMAGE
04/26/97   JEFFERSON                      JEFFERSON PARISH EMERGENCY
                                          MANAGEMENT REPORTED TREES
                                          DOWN ON POWER LINES.

0315 AM    ORLEANS                   LA   WIND DAMAGE
04/26/97   ALGIERS                        JEFFERSON PARISH EMERGENCY
                                          MANAGEMENT REPORTED LARGE
                                          TREES DOWN.

0315 AM    WALKER                    LA   WIND DAMAGE
04/26/97   LIVINGSTON                     PARISH SHERIFFS OFFICE
                                          REPORTED POWER LINE
                                          DOWN ON LA HIGHWAY 447.

0322 AM    LIVINGSTON                LA   WIND DAMAGE
04/26/97   LIVINGSTON                     PARISH SHERIFFS OFFICE
                                          REPORTED TREES DOWN ON
                                          LA HIGHWAY 63.

0330 AM    CONVENT                   LA   WIND DAMAGE
04/26/97   ST. JAMES                      PARISH SHERIFFS OFFICE
                                          REPORTED TREES DOWN
                                          AND POWER OUTAGE.

0345 AM    LAKE PNTCHARTRAIN         LA   WIND GUST
04/26/97   JEFFERSON                      MID CAUSEWAY 55 MPH WINDS

0355 AM    LAPLACE                   LA   WIND DAMAGE
04/26/97   ST. JOHN                       LA STATE POLICE TROOP B
                                          REPORTED TREES DOWN ON
                                          U.S. HIGHWAY 51.

0357 AM    AMA                       LA   WIND DAMAGE
04/26/97   ST. CHARLES                    LA STATE POLICE TROOP B
                                          REPORTED TREES DOWN ON
                                          LA HIGHWAY 18.

0358 AM    KENNER - KMSY             LA   WIND GUST
04/26/97   JEFFERSON                      KMSY AIRPORT RECORDED
                                          WIND GUST OF 44 KNOTS.

0404 AM    NEW ORLEANS - KNEW        LA   WIND GUST
04/26/97   ORLEANS                        KNEW AIRPORT RECORDED
                                          WIND GUST OF 57 KNOTS
                                          - AIRCRAFT DAMAGED.

0415 AM    ST. TAMMANY               LA   WIND DAMAGE
04/26/97   SLIDELL                        WEATHER SERVICE EMPLOYEE
                                          REPORTED LARGE 50 FT PINE
                                          TREE DOWN OFF LA HIGHAY 190.

0417 AM    METAIRIE                  LA   WIND DAMAGE
04/26/97   JEFFERSON                      STORM SPOTTER REPORTED
                                          TREES DOWN NEAR CLEARVIEW
                                          PARKWAY SOUTH.

0438 AM    MARRERO                   LA   WIND DAMAGE
04/26/97   JEFFERSON                      LA STATE POLICE TROOP B
                                          REPORTED TREES DOWN ON
                                          LA HIGHWAY 45.

0553 AM    CONVENT                   LA   WIND GUST
04/26/97   ST. JAMES                      TIMES PICAYUNE NEWSPAPER
                                          REPORTED SSA DELTA BULK
                                          TERMINAL RECORDED WIND
                                          GUST OF 114 MPH.

0143 AM    NEW ROADS                 LA   0.875 INCH HAIL
04/27/97   POINTE COUPEE                  REPORTED BY PARISH
                                          SHERIFFS OFFICE.

0330 AM    ETHEL                     LA   FLOODING
04/27/97   EAST FELICIANA                 EXTENSIVE HIGHWAY FLOODING
                                          REPORTED BY PARISH SHERIFFS
                                          OFFFICE.

0735 AM    MCCOMB                    MS   FLOODING
04/27/97   PIKE                           WATER IN SEVERAL HOMES AND
                                          EXTENSIVE STREET FLOODING.
                                          REPORTED BY PIKE COUNTY
                                          CIVIL DEFENSE.

1015 AM    PLAQUEMINE/WHITE CASTLE   LA   FLOODING
04/27/97   IBERVILLE                      EXTENSIVE STREET FLOODING
                                          REPORTED BY POLICE DEPT.

1020 AM    CLINTON                   LA   FLOODING
04/27/97   EAST FELICIANA                 WATER IN MIDDLE SCHOOL
                                          AND SEVERAL HOMES. REPORTED
                                          BY PARISH SHERIFFS OFFICE.

03
Local storm report, Apr 27, 11:11 AM CDT, 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LOUISIANA
1110 AM CDT SUN APR 27 1997

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH LOCATION....

0158 AM    ERWINVILLE                LA   WIND DAMAGE
04/26/97   WEST BATON ROUGE               PARISH SHERIFFS OFFICE
                                          REPORTED TRAILER BLOWN
                                          OVER NEAR HIGHWAY 190.

0215 AM    BATON ROUGE               LA   WIND DAMAGE
04/26/97   EAST BATON ROUGE               WEATHER SERVICE EMPLOYEE
                                          REPORTED TREES DOWN ON
                                          3 AUTOMOBILES.

0240 AM    DONALDSONVILLE            LA   WIND DAMAGE
04/26/97   ASCENSION                      PARISH SHERIFFS OFFICE
                                          REPORTED TREES DOWN ON
                                          HIGHWAY 1.

0245 AM                              LA   WIND DAMAGE
04/26/97   LAFOUCHE                       LAFOUCHE EMERGENCY
                                          MANAGEMENT REPORTED
                                          ROOF BLOWN OFF..TREES
                                          DOWN AND LIMITED POWER
                                          OUTAGES.

0305 AM    HARVEY                    LA   WIND DAMAGE
04/26/97   JEFFERSON                      JEFFERSON PARISH EMERGENCY
                                          MANAGEMENT REPORTED TREES
                                          DOWN ON POWER LINES.

0315 AM    ORLEANS                   LA   WIND DAMAGE
04/26/97   ALGIERS                        JEFFERSON PARISH EMERGENCY
                                          MANAGEMENT REPORTED LARGE
                                          TREES DOWN.

0315 AM    WALKER                    LA   WIND DAMAGE
04/26/97   LIVINGSTON                     PARISH SHERIFFS OFFICE
                                          REPORTED POWER LINE
                                          DOWN ON LA HIGHWAY 447.

0322 AM    LIVINGSTON                LA   WIND DAMAGE
04/26/97   LIVINGSTON                     PARISH SHERIFFS OFFICE
                                          REPORTED TREES DOWN ON
                                          LA HIGHWAY 63.

0330 AM    CONVENT                   LA   WIND DAMAGE
04/26/97   ST. JAMES                      PARISH SHERIFFS OFFICE
                                          REPORTED TREES DOWN
                                          AND POWER OUTAGE.

0345 AM    LAKE PNTCHARTRAIN         LA   WIND GUST
04/26/97   JEFFERSON                      MID CAUSEWAY 55 MPH WINDS

0355 AM    LAPLACE                   LA   WIND DAMAGE
04/26/97   ST. JOHN                       LA STATE POLICE TROOP B
                                          REPORTED TREES DOWN ON
                                          U.S. HIGHWAY 51.

0357 AM    AMA                       LA   WIND DAMAGE
04/26/97   ST. CHARLES                    LA STATE POLICE TROOP B
                                          REPORTED TREES DOWN ON
                                          LA HIGHWAY 18.

0358 AM    KENNER - KMSY             LA   WIND GUST
04/26/97   JEFFERSON                      KMSY AIRPORT RECORDED
                                          WIND GUST OF 44 KNOTS.

0404 AM    NEW ORLEANS - KNEW        LA   WIND GUST
04/26/97   ORLEANS                        KNEW AIRPORT RECORDED
                                          WIND GUST OF 57 KNOTS
                                          - AIRCRAFT DAMAGED.

0415 AM    ST. TAMMANY               LA   WIND DAMAGE
04/26/97   SLIDELL                        WEATHER SERVICE EMPLOYEE
                                          REPORTED LARGE 50 FT PINE
                                          TREE DOWN OFF LA HIGHAY 190.

0417 AM    METAIRIE                  LA   WIND DAMAGE
04/26/97   JEFFERSON                      STORM SPOTTER REPORTED
                                          TREES DOWN NEAR CLEARVIEW
                                          PARKWAY SOUTH.

0438 AM    MARRERO                   LA   WIND DAMAGE
04/26/97   JEFFERSON                      LA STATE POLICE TROOP B
                                          REPORTED TREES DOWN ON
                                          LA HIGHWAY 45.

0553 AM    CONVENT                   LA   WIND GUST
04/26/97   ST. JAMES                      TIMES PICAYUNE NEWSPAPER
                                          REPORTED SSA DELTA BULK
                                          TERMINAL RECORDED WIND
                                          GUST OF 114 MPH.

0143 AM    NEW ROADS                 LA   0.875 INCH HAIL
04/27/97   POINTE COUPEE                  REPORTED BY PARISH
                                          SHERIFFS OFFICE.

0330 AM    ETHEL                     LA   FLOODING
04/27/97   EAST FELICIANA                 EXTENSIVE HIGHWAY FLOODING
                                          REPORTED BY PARISH SHERIFFS
                                          OFFFICE.

0735 AM    MCCOMB                    MS   FLOODING
04/27/97   PIKE                           WATER IN SEVERAL HOMES AND
                                          EXTENSIVE STREET FLOODING.
                                          REPORTED BY PIKE COUNTY
                                          CIVIL DEFENSE.

1015 AM    PLAQUEMINE/WHITE CASTLE   LA   FLOODING
04/27/97   IBERVILLE                      EXTENSIVE STREET FLOODING
                                          REPORTED BY POLICE DEPT.

1020 AM    CLINTON                   LA   FLOODING
04/27/97   EAST FELICIANA                 WATER IN MIDDLE SCHOOL
                                          AND SEVERAL HOMES. REPORTED
                                          BY PARISH SHERIFFS OFFICE.

03

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 26, 11:40 PM CDTSevere Thunderstorm WarningLIXWilkinson35 min
Apr 27, 2:08 AM CDTSevere Thunderstorm WarningLIXAmite, Wilkinson52 min
Apr 27, 3:09 AM CDTSevere Thunderstorm WarningLIXAmite, Wilkinson36 min
Apr 27, 3:43 AM CDTSevere Thunderstorm WarningLIXPike32 min
Apr 27, 5:07 AM CDTFlash Flood WarningLIXPike2 hr
Apr 27, 6:00 AM CDTSevere Thunderstorm WarningLIXWalthall15 min
Apr 27, 7:48 AM CDTFlash Flood WarningLIXPike117 min
Apr 27, 10:04 AM CDTFlash Flood WarningLIXPike, Walthall4 hr

Nearby

Flash Flood Warnings in Mississippi, 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.