Alert archive / Mississippi / Flash Flood Warnings in 2002

Flash Flood Warning 28, NWS Jackson, MS

August 5, 2002Jefferson Davis County, Lawrence County, Marion County, Mississippi

NWS Jackson, MS issued this flash flood warning at Aug 5, 2002, 5:59 PM CDT for Jefferson Davis County, Lawrence County, Marion 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 outline as issued.

The facts

Issued
Aug 5, 2002, 5:59 PM CDT (22:59 UTC)
Expired
Aug 5, 2002, 8:30 PM CDT
In force
3 hr
Issued by
NWS Jackson, MS
Area
Counties, with a storm outline in the text

Counties Jefferson Davis County, MS, Lawrence County, MS, Marion County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 11.0 hours before the alert went out and 94 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, Jackson, MS at 12:00Z on 2002-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 133 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2002-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.1939Sfc1 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
133 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
964 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
51 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 
WGUS54 KJAN 052259
FFWJAN
MSC065-077-091-060130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
558 PM CDT MON AUG 5 2002

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JEFFERSON DAVIS COUNTY IN SOUTH CENTRAL MISSISSIPPI
  LAWRENCE COUNTY IN SOUTH CENTRAL MISSISSIPPI
  NORTHERN MARION COUNTY IN SOUTH CENTRAL MISSISSIPPI

* UNTIL 830 PM CDT

* AT 558 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED   
THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER NORTHERN MARION 
COUNTY...AND MUCH OF JEFFERSON DAVIS AND LAWRENCE COUNTIES. THE 
HEAVY RAIN HAS BEEN MOVING SLOWLY NORTH...AND CONTINUES TO 
REGENERATE IN THE SAME AREA. REPORTS FROM NORTHERN MARION COUNTY 
INDICATE THAT CREEKS AND ROADS ARE BEGINNING TO FLOOD. AN ADDITIONAL 
ONE TO TWO INCHES OF RAIN IS LIKELY DURING THE NEXT ONE TO TWO HOURS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.

LAT...LON 3130 8991 3124 8971 3148 8971 3177 8979
          3175 9008 3156 9013
1 follow-up statement
000 
WGUS74 KJAN 060127
FFSJAN
MSC065-077-091-060131-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
825 PM CDT MON AUG 5 2002

FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 830 AM CDT FOR...

JEFFERSON DAVIS COUNTY IN SOUTH CENTRAL MISSISSIPPI
LAWRENCE COUNTY IN SOUTH CENTRAL MISSISSIPPI
NORTHERN MARION COUNTY IN SOUTH CENTRAL MISSISSIPPI

AT 825 AM...RADAR INDICATED THAT RAINFALL INTENSITY HAD DECREASED 
SIGNIFICANTLY OVER JEFFERSON DAVIS...LAWRENCE...AND MARION 
COUNTIES...AND THAT FLASH FLOODING IS NO LONGER A THREAT.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 3:28 PM CDTTornado WarningJANMarion32 min

Nearby

Flash Flood Warnings in Mississippi, 2002Every flash flood warning in 2002

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.