Alert archive / Mississippi / Flash Flood Warnings in 1998

Flash Flood Warning 24, NWS New Orleans, LA

May 28, 1998Pike County, Mississippi

NWS New Orleans, LA issued this flash flood warning at May 28, 1998, 8:36 PM CDT for Pike County, Mississippi. 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
May 28, 1998, 8:36 PM CDT (01:36 UTC)
Expired
May 28, 1998, 11:35 PM CDT
In force
3 hr
Issued by
NWS New Orleans, LA
Area
Whole counties

County Pike County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.6 hours before the alert went out and 123 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 00:00Z on 1998-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1970 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 00:00Z on 1998-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 square meters per square second.193958Sfc1 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
1970 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
980 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
-6 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KNEW 290136
FFWNEW
MSC113-290435-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
836 PM CDT THU MAY 28 1998

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS LA HAS ISSUED A...

* FLASH FLOOD WARNING FOR
   - CENTRAL AND SOUTHERN PIKE COUNTY SOUTHERN MISSISSIPPI

* UNTIL 1135 PM CDT

* NATIONAL WEATHER SERVICE DOPPLER RADAR OVER THE PAST HOUR
  HAS INDICATED 2 TO 3 INCHES OF RAIN FROM JUST SOUTHWEST OF
  MCCOMB EXTENDING SOUTHEAST TOWARDS MAGNOLIA.

* AT 834 PM CDT RADAR INDICATED A CLUSTER OF STRONG THUNDERSTORMS
 WITH HEAVY RAIN CONTINUING FROM NEAR THE MCCOMB AREA SOUTHEAST TO
 MAGNOLIA WITH LITTLE MOVEMENT INDICATED.

 DO NOT DRIVE YOUR VEHICLE INTO DAREAS 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, May 28, 7:40 PM CDT, 56 minutes before
LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-291600-

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS LA
740 PM CDT THU MAY 28 1998

SEVERE THUNDERSTORMS WILL CONTINUE ACROSS THE AREAS THIS
THURSDAY EVENING. LOCALLY VERY HEAVY RAIN...GUSTY AND DAMAGING
WINDS...AND DANGEROUS LIGHTNING WILL ACCOMPANY THE STORMS.
THESE STORMS WILL CONTINUE TO MOVE SLOWLY NORTH TO NORTHEAST
DURING THE EVENING HOURS.
Special weather statement, May 28, 7:40 PM CDT, 56 minutes before
LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-291600-

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS LA
740 PM CDT THU MAY 28 1998

SEVERE THUNDERSTORMS WILL CONTINUE ACROSS THE AREAS THIS
THURSDAY EVENING. LOCALLY VERY HEAVY RAIN...GUSTY AND DAMAGING
WINDS...AND DANGEROUS LIGHTNING WILL ACCOMPANY THE STORMS.
THESE STORMS WILL CONTINUE TO MOVE SLOWLY NORTH TO NORTHEAST
DURING THE EVENING HOURS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 7:30 PM CDTSevere Thunderstorm WarningLIXWilkinson65 min
May 28, 7:40 PM CDTSevere Thunderstorm WarningLIXAmite50 min
May 28, 7:51 PM CDTSevere Thunderstorm WarningLIXPike44 min
May 28, 8:09 PM CDTFlash Flood WarningLIXAmite3 hr
May 29, 1:22 PM CDTSevere Thunderstorm WarningLIXPearl River48 min

Nearby

Flash Flood Warnings in Mississippi, 1998Every flash flood warning in 1998

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.