Alert archive / Mississippi / Flash Flood Warnings in 2003
Flash Flood Warning 24, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Mar 6, 2003, 5:38 PM CST for Forrest County, Lamar County, Marion County, Mississippi. It was in force for 2 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
- Mar 6, 2003, 5:38 PM CST (23:38 UTC)
- Expired
- Mar 6, 2003, 7:40 PM CST
- In force
- 2 hr
- Issued by
- NWS Jackson, MS
- Area
- Counties, with a storm outline in the text
Counties Forrest County, MS, Lamar County, MS, Marion County, MS
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 11.6 hours before the alert went out and 87 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
- 814 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 533 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KJAN 062341 FFWJAN MSC035-073-091-070140- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE JACKSON MS 538 PM CST THU MAR 6 2003 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A * FLASH FLOOD WARNING FOR... FORREST COUNTY IN SOUTHEAST MISSISSIPPI LAMAR COUNTY IN SOUTHEAST MISSISSIPPI MARION COUNTY IN SOUTH CENTRAL MISSISSIPPI * UNTIL 740 PM CST * AT 538 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS FORREST AND SOUTHERN PORTIONS OF MARION AND LAMAR COUNTIES. DOPPLER RADAR INDICATED THAT RAINFALL IN EXCESS OF AN INCH IN AN HOUR HAS ALREADY OCCURRED IN THIS AREA. MORE THUNDERSTORMS WITH HEAVY RAIN WILL MOVE ACROSS THIS AREA THIS EVENING...RESULTING IN FLOODING OF STREAMS...ROADS...AND LOW LYING AREAS. 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 3097 9003 3081 8993 3103 8915 3138 8916 $$
2 follow-up statements
000 WGUS74 KJAN 070057 FFSJAN MSC035-073-091-070150- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 657 PM CST THU MAR 6 2003 FLASH FLOOD WARNING REMAINS IN EFFECT FOR... FORREST COUNTY IN SOUTHEAST MISSISSIPPI LAMAR COUNTY IN SOUTHEAST MISSISSIPPI MARION COUNTY IN SOUTH CENTRAL MISSISSIPPI UNTIL 740 PM CST. DOPPLER RADAR INDICATED VERY HEAVY RAIN CONTINUING OVER THE CITY OF LUMBERTON AND ACROSS CENTRAL FORREST COUNTY. RADAR IS ESTIMATING HOURLY RAINFALL RATES BETWEEN 1 AND 2 INCHES. THIS RAIN IS FALLING OVER AREAS THAT HAVE ALREADY SEEN 2 TO 3 INCHES OF RAIN SINCE 430 PM. THESE STORMS ARE CONTINUING TO MOVE OVER THE SAME LOCATIONS AND COULD PRODUCE AN ADDITIONAL 1 TO 2 INCHES THROUGH 8 PM. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. $$
000 WGUS74 KJAN 070142 FFSJAN MSC035-073-091-070148- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 738 PM CST THU MAR 6 2003 THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE FOR FORREST COUNTY IN SOUTHEAST MISSISSIPPI LAMAR COUNTY IN SOUTHEAST MISSISSIPPI MARION COUNTY IN SOUTH CENTRAL MISSISSIPPI THE LINE OF THUNDERSTORMS THAT WERE PRODUCING HEAVY RAINFALL OVER MARION...LAMAR AND FORREST COUNTIES...HAS MOVED TO THE EAST OF THE AREA...THUS THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE. ADDITIONAL SHOWERS ARE DEVELOPING ACROSS SOUTHEAST LOUISIANA...BUT AT THIS TIME RAINFALL RATES WILL REMAIN LOW AND THE THREAT OF FLOODING HAS DIMINISHED. $$
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 5, 8:54 PM CST | Severe Thunderstorm Warning | JAN | Lowndes | 26 min |
| Mar 5, 9:44 PM CST | Severe Thunderstorm Warning | JAN | Grenada | 26 min |
| Mar 6, 12:03 AM CST | Severe Thunderstorm Warning | JAN | Clay, Oktibbeha | 37 min |
| Mar 6, 5:08 PM CST | Severe Thunderstorm Warning | JAN | Forrest | 32 min |
Nearby
Flash Flood Warnings in Mississippi, 2003Every flash flood warning in 2003
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.