Alert archive / Mississippi / Flash Flood Warnings in 1993

Flash Flood Warning 13, NWS Jackson, MS

January 20, 1993Lamar County, Marion County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jan 20, 1993, 10:27 PM CST for Lamar County, Marion County, Mississippi. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jan 20, 1993, 10:27 PM CST (04:27 UTC)
Expired
Jan 21, 1993, 1:30 AM CST
In force
3 hr
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Lamar County, MS, Marion County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 4.5 hours before the alert went out and 108 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 1993-01-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 334 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 1993-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 431 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
334 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
518 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
431 m²/s²
0-3 km storm-relative helicity
463 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 210428
FFWJAN
MSC091-073-210730-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1027 PM CST WED JAN 20 1993
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  130 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...S...
 
IN SOUTH CENTRAL MISSISSIPPI
 
   ...MARION COUNTY
 
IN SOUTHEAST MISSISSIPPI
 
   ...LAMAR COUNTY
 
RAIN AND SCATTERED THUNDERSTORMS CONTINUE OVER SOUTHERN MISSISSIPPI.
WIDESPREAD FLOODING HAS BEEN REPORTED IN SOME SOUTHERN MISSISSIPPI
BORDER COUNTIES. RAIN SHOULD TAPER OFF AFTER MIDNIGHT TONIGHT AS THE
ASSOCIATED FRONT PASSES TO THE EAST.
 
DO NOT DRIVE YOUR CAR INTO AREAS WHERE WATER COVERS THE ROAD.
THE dWATER DEPTH MAY BE TOO DEEP TO ALLOW YOU TO CROSS SAFELY.
VEHICLES CAUGHT IN RISING WATER MUST BE ABANDONED QUICKLY.
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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, Jan 20, 4:54 PM CST, 5 hours 33 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-202345-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
430 PM CST WED JAN 20 1993

JACKSON RADAR INDICATED EXTENSIVE COVERAGE OF LIGHT RAIN AND RAIN ACROSS
THE LOWER TWO-THIRDS OF MISSISSIPPI.  THIS RAIN AREA INCLUDED ISOLATED
THUNDERSTORMS WITH HEAVY RAINFALL THAT WERE LOCATED IN THE DELTA AND IN
SOUTH MISSISSIPPI.

THE THUNDERSTORMS IN THE DELTA WERE LOCATED FROM THE VICINITY OF
GREENVILLE TO THE VICINITY OF LAKE PROVIDENCE LOUISIANA.  THIS ACTIVITY
WAS IMMEDIATELY ALONG A COLD FRONT THAT EXTENDED ALONG THE MISSISSIPPI
RIVER IN ARKANSAS AND EXTREME NORTHEAST LOUISIANA AND CONTINUING TO NEAR
ALEXANDRIA LOUISIANA.

THE THUNDERSTORMS AND HEAVIER RAINFALL IN THE SOUTH WERE LOCATED NEAR
COLUMBIA MISSISSIPPI AND EXTENDED NORTHWARD TO THE VICINITY OF RALEIGH.
PEOPLE IN FLOOD PRONE AREAS SHOULD REMAIN ALERT TO THE WEATHER SITUATION
THROUGHOUT THE EVENING AND BE PREPARED TO TAKE ACTION SHOULD A FLOOD
WARNING BE ISSUED FOR YOUR COUNTY OR AREA.  THE RAINS ARE EXPECTED TO
CONTINUE THROUGHOUT THE EVENING AND MAY ACCUMULATE RAPIDLY IN SOME
LOCAL AREAS AFTER NIGHTFALL.

MOVEMENT OF THE LRAIN AREAS AND THUNDERSTORMS WAS TO THE NORTHEAST AT
35 MILES AN HOUR.
Special weather statement, Jan 20, 5:49 PM CST, 4 hours 38 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-202345-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
530 PM CST WED JAN 20 1993

AT 530 PM CST JACKSON RADAR INDICATED CONTINUING COVERAGE OF MOSTLY
LIGHT RAIN ACROSS MUCH OF CENTRAL AND SOUTHWEST MISSISSIPPI.  AN AREA
OF MODERATE RAINFALL CONTAINING ISOLATED EMBEDDED THUNDERSTORMS WITH
HEAVY RAINFALL WAS SITUATED ACROSS SOUTH MISSISSIPPI FROM NEAR BAY
SPRINGS TO SOUTH OF MCCOMB AND CONTINUED INTO SOUTHEAST LOUISIANA.

THE AREA OF MODERATE TO HEAVY RAIN INCLUDED THE VICINITY OF HATTIESBURG
WHERE SOME URBAN FLOODING HAD OCCURRED EARLIER TODAY.  AN ADDITIONAL
1 TO 2 INCHES OF RAINFALL IS POSSIBLE FROM THIS ACTIVITY DURING THE NEXT
SEVERAL HOURS.  PEOPLE IN SOUTH AND SOUTHEAST MISSISSIPPI SHOULD CONTINUE
TO MONITOR THEIR NOAA WEATHER RADIO...LOCAL RADIO AND TV FOR THE LATEST
STATEMENTS AND POSSIBLE WARNINGS AND BE PREPARED TO ACT ACCORDINGLY.

MEANWHILE...THE RAIN AREA IN THE EXTREME WESTERN PART OF THE STATE WAS
DIMINISHING IN COVERAGE FROM WEST TO EAST AS THE COLD FRONT SLOWLY
MOVES EASTWARD.

THE MOVEMENT OF ALL THE RAIN AREAS WAS TO THE NORTHEAST AT ABOUT
35 MILES AN HOUR.
Special weather statement, Jan 20, 5:50 PM CST, 4 hours 37 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-210045-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY ...CORRECTED FOR TIME...
NATIONAL WEATHER SERVICE JACKSON MS
530 PM CST WED JAN 20 1993

AT 530 PM CST JACKSON RADAR INDICATED CONTINUING COVERAGE OF MOSTLY
LIGHT RAIN ACROSS MUCH OF CENTRAL AND SOUTHWEST MISSISSIPPI.  AN AREA
OF MODERATE RAINFALL CONTAINING ISOLATED EMBEDDED THUNDERSTORMS WITH
HEAVY RAINFALL WAS SITUATED ACROSS SOUTH MISSISSIPPI FROM NEAR BAY
SPRINGS TO SOUTH OF MCCOMB AND CONTINUED INTO SOUTHEAST LOUISIANA.

THE AREA OF MODERATE TO HEAVY RAIN INCLUDED THE VICINITY OF HATTIESBURG
WHERE SOME URBAN FLOODING HAD OCCURRED EARLIER TODAY.  AN ADDITIONAL
1 TO 2 INCHES OF RAINFALL IS POSSIBLE FROM THIS ACTIVITY DURING THE NEXT
SEVERAL HOURS.  PEOPLE IN SOUTH AND SOUTHEAST MISSISSIPPI SHOULD CONTINUE
TO MONITOR THEIR NOAA WEATHER RADIO...LOCAL RADIO AND TV FOR THE LATEST
STATEMENTS AND POSSIBLE WARNINGS AND BE PREPARED TO ACT ACCORDINGLY.

MEANWHILE...THE RAIN AREA IN THE EXTREME WESTERN PART OF THE STATE WAS
DIMINISHING IN COVERAGE FROM WEST TO EAST AS THE COLD FRONT SLOWLY
MOVES EASTWARD.

THE MOVEMENT OF ALL THE RAIN AREAS WAS TO THE NORTHEAST AT ABOUT
35 MILES AN HOUR.
Special weather statement, Jan 20, 6:52 PM CST, 3 hours 35 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-210145-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
630 PM CST WED JAN 20 1993

AT 630 PM CST JACKSON RADAR INDICATED AN AREA OF RAIN AND THUNDERSTORMS
ACROSS SOUTHEAST MISSISSIPPI AND SOUTHEAST LOUISIANA. THE AREA WAS
ORIENTED GENERALLY ALONG U.S. INTERSTATE HIGHWAY 59 FROM MERIDIAN TO
POPLARVILLE...TO THE NORTHWEST SHORE OF LAKE PONCHARTRAIN AND INCLUDED
THE CITIES OF HATTIESBURG AND LAUREL.  RAINFALL ACROSS THIS AREA WAS
FALLING AT A RATE OF 1/2 TO 1 INCH PER HOUR AND FALLING ON GROUND THAT
IS ALREADY SATURATED.

PEOPLE IN SOUTHEAST MISSISSIPPI...PARTICULARLY THOSE IN AREAS WHERE FLOOD
WARNINGS HAVE BEEN ISSUED SHOULD REMAIN WEATHER ALERT AND BE READY TO MOVE
TO HIGHER LOCATIONS SHOULD FLOODING COMMENCE.  AVOID DRIVING ACROSS WATER
COVERED ROADS AND BRIDGES.  MOST DEATHS ASSOCIATED WITH FLOOD WATERS IS A
RESULT OF UNDERESTIMATING THE DEPTH AND SWIFTNESS OF THE FLOOD WATERS.
ELSEWHERE...MOSTLY LIGHT RAIN COVERED A LARGE PART OF CENTRAL
MISSISSIPPI.  A FEW PATCHES OF SOMEWHAT HEAVIER RAIN WAS LOCATED IN THE
VICINITY OF VICKSBURG.

THE MOVEMENT OF ALL THE RAIN WAS TO THE N<ORTHEAST AT 35 MILES AN HOUR.
Special weather statement, Jan 20, 7:53 PM CST, 2 hours 34 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-210300-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
745 PM CST WED JAN 20 1993

FLOOD WATCH REMAINS IN EFFECT TONIGHT FOR SOUTH MISSISSIPPI SOUTH OF A
LINE FROM VICKSBURG TO MERIDIAN.

AT 730 PM CST JACKSON RADAR INDICATED AN AREA OF RAIN IN A 40 MILE WIDE
BAND ACROSS SOUTHEAST MISSISSIPPI FROM MERIDIAN...ACROSS HATTIESBURG...
TO POPLARVILLE AND EXTENDING INTO SOUTHEAST LOUISIANA.

THIS RAIN AREA HAS PERSISTED DURING THE PAST SEVERAL HOURS AND HAS
PRODUCED NUMEROUS AREAS OF FLOODING...PARTICULARLY IN THE VICINITY OF
HATTIESBURG...LAUREL...COLUMBIA AND TYLERTOWN.  RIVERS AND STREAMS ARE
ON THE RISE FROM THE EXCESSIVE RAINFALL AND SUBSEQUENT RUNOFF.  THE
THREAT FOR FLOODING WILL CONTINUE FOR THE NEXT FEW HOURS AS THE RAINS
CONTINUE.
>
PEOPLE IN FLOOD PRONE AREAS SHOULD BE PREPARED TO MOVE TO HIGHER GROUND.
STAY TUNED TO LOCAL TV...RADIO AND NOAA WEATHER RADIO FOR THE LATEST
DETAILS FROM LOCAL AUTHORITIES AND FOR THE LATEST WATCHES AND POSSIBLE
WARNINGS.

ELSEWHERE...WIDELY SCATTERED THUNDERSTORMS WITH HEAVY AND VERY HEAVY
RAINFALL HAD DEVELOPED IN THE PAST HOUR ACROSS WEST CENTRAL MISSISSIPPI
15 MILES NORTH OF VICKSBURG TO EDWARDS.  THESE THUNDERSTORMS WERE
EMBEDDED WITHIN A LARGE AREA OF MOSTLY LIGHT RAIN THAT EXTENDED INTO
NORTHCENTRAL MISSISSIPPI AND WAS IN ADVANCE OF A SLOW MOVING COLD FRONT.

MOVEMENT OF THE RAIN AND THUNDERSTORMS WAS TO THE NORTHEAST AND EAST AT
30 TO 35 MILES AN HOUR.
Special weather statement, Jan 20, 8:33 PM CST, 1 hour 54 minutes before
MSZALL-210500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
830 PM CST WED JAN 20 1993

...FLASH FLOOD WATCH IN EFFECT FOR THE SOUTHERN HALF OF MISSISSIPPI
   TONIGHT...
...FLOOD WARNINGS REMAIN IN EFFECT FOR MARION...WALTHALL AND LAMAR
   COUNTIES UNTIL 10 PM AND FOR WILKINSON...AMITE AND PIKE COUNTIES
   UNTIL 1030 PM...
...FLASH FLOOD WARNING IN EFFECT FOR FORREST COUNTY UNTIL 11 PM...

RAIN AND SCATTERED THUNDERSTORMS CONTINUED OVER THE STATE AS A
VIGOROUS WEATHER SYSTEM MOVED ACROSS THE REGION. THE HEAVIEST RAINFALL
TOTALS OCCURRED OVER SOUTHERN MISSISSIPPI WITH AMOUNTS FROM 3 TO
5 INCHES REPORTED.

URBAN FLOODING WAS REPORTED IN COUNTIES ALONG THE SOUTHERN MISSISSIPPI
BORDER AND MANY ROADS HAD BEEN CLOSED IN THE AREA. HATTIESBURG REPORTED
THAT A SMALL BRIDGE HAD BEEN WASHED AWAY...WATER HAD ENTERED BUILDINGS
AND THAT THE NORTH BOUND LANES OF US HIGHWAY 49 S OF HATTIESBURG HAD
BEEN BARRICADED. ALSO...UP TO 3 INCHES OF WATER WERE REPORTED IN SOME
HOUSES IN COLUMBIA.

RAINFALL WILL TAPER OFF FROM THE WEST TONIGHT AS THE ASSOCIATED
WEATHER SYSTEM MOVES PAST THE STATE.

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 20, 7:10 PM CSTFlash Flood WarningJANLamar, Marion3 hr
Jan 20, 7:10 PM CSTFlash Flood WarningJANWalthall3 hr
Jan 20, 9:32 PM CSTFlash Flood WarningJANClarke12 hr
Jan 20, 10:34 PM CSTFlash Flood WarningJANPike, Walthall86 min
Jan 20, 11:00 PM CSTFlash Flood WarningJANForrest3 hr

Nearby

Flash Flood Warnings in Mississippi, 1993Every flash flood warning in 1993

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.