Alert archive / Mississippi / Flash Flood Warnings in 2003

Flash Flood Warning 89, NWS Jackson, MS

June 30, 2003Forrest County, Lamar County, Marion County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jun 30, 2003, 4:28 PM CDT for Forrest County, Lamar County, Marion County, Mississippi. It was in force for 6 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: Jun 30, 2003, 4:28 PM CDT (21:28 UTC)
Expired: Jun 30, 2003, 10:30 PM CDT
In force: 6 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, 9.5 hours before the alert went out and 111 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 124 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 568 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 152 m²/s²
0-3 km storm-relative helicity: 203 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KJAN 302133
FFWJAN
MSC035-073-091-010330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
428 PM CDT MON JUN 30 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 1030 PM CDT

* AT 428 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED   
  WIDESPREAD RAIN AND EMBEDDED THUNDERSTORMS PRODUCING VERY HEAVY 
  RAIN FROM COLUMBIA TO 7 MILES SOUTHEAST OF BROOKLYN.   THE AREA OF 
  HEAVY RAIN WAS NEARLY STATIONARY.

RADAR ESTIMATED RAINFALL AMOUNTS OF 1 TO 1.5 INCHES HAS FALLEN OVER 
SOUTHERN PORTIONS OF THE WARNED AREA IN THE PAST THREE HOURS.  THIS 
BRINGS STORM TOTALS SINCE YESTERDAY TO BETWEEN 3 AND 5 INCHES.  
SEVERAL MORE HOURS OF HEAVY RAINFALL AND EMBEDDED THUNDERSTORMS 
SHOULD BRING ADDITIONAL AMOUNTS OF 2 TO 3 INCHES BY THE MIDDLE 
EVENING HOURS.  

GIVEN SATURATED GROUND...FLOODING OF STREAMS...CREEKS...SECONDARY 
ROADS...AND LOW LYING AREAS IS LIKELY.  DO NOT DRIVE INTO AREAS 
WHERE WATER COVERS THE ROADWAY.  IT MAY BE TOO DEEP TO ALLOW YOUR 
VEHICLE TO CROSS SAFELY.   

LAT...LON 3109 8986 3138 9004 3139 8984 3143 8975
          3143 8913 3093 8913

$$

CRAVEN

2 follow-up statements

000 
WGUS74 KJAN 302345
FFSJAN
MSC035-073-091-010330-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
638 PM CDT MON JUN 30 2003

FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR...

FORREST COUNTY IN SOUTHEAST MISSISSIPPI
LAMAR COUNTY IN SOUTHEAST MISSISSIPPI
MARION COUNTY IN SOUTH CENTRAL MISSISSIPPI

AT 635 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
BAND OF HEAVY RAINFALL FROM COLUMBIA TO HATTIESBURG...MOVING NORTH 
AT 30 MPH.  RAINFALL RATES SHOULD INCREASE TO ABOUT HALF AN INCH PER 
HOUR AS THIS FIRST BAND MOVES THROUGH OVER THE NEXT 30 MINUTES. 

OF MORE CONCERN IS A MORE INTENSE BAND OF SHOWERS AND THUNDERSTORMS 
OVER THE COASTAL AREAS OF MISSISSIPPI.  RAINFALL RATES OF ONE TO TWO 
INCHES PER HOUR ARE EXPECTED AFTER 8 PM THIS EVENING IN THE WARNED 
AREA AS TROPICAL STORM BILL CONTINUES TO APPROACH MISSISSIPPI FROM 
THE SOUTH.

THE POTENTIAL FOR FLOODING CONTINUES TO INCREASE AS WE HEAD TOWARDS 
DARKNESS.  REMEMBER...MANY FLASH FLOOD RELATED DEATHS OCCUR AT NIGHT 
WHEN PEOPLE ATTEMPT TO DRIVE THEIR VEHICLES ACROSS FLOODED 
ROADWAYS.  

$$

CRAVEN

000 
WGUS74 KJAN 010202
FFSJAN
MSC035-073-091-010330-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
900 PM CDT MON JUN 30 2003

FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR...

FORREST COUNTY IN SOUTHEAST MISSISSIPPI
LAMAR COUNTY IN SOUTHEAST MISSISSIPPI
MARION COUNTY IN SOUTH CENTRAL MISSISSIPPI

AT 855 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE WIDESPREAD HEAVY RAINFALL OVER SOUTHEAST AND SOUTH CENTRAL 
MISSISSIPPI WITH THE APPROACH OF TROPICAL STORM BILL.  RAINFALL 
RATES HAVE STARTED TO INCREASE...PARTICULARLY OVER SOUTHERN PORTIONS 
OF FORREST COUNTY WHERE 1 TO 1.5 INCHES HAS FALLEN IN THE PAST 
HOUR.  THIS BRINGS 36 HOUR STORM TOTALS TO 5 TO 7 INCHES OVER 
SOUTHERN PORTIONS OF FORREST...LAMAR...AND MARION COUNTIES.

IT APPEARS THAT THE HEAVIEST RAINFALL WILL CONTINUE THROUGH ABOUT 10 
PM BEFORE TAPERING OFF SOMEWHAT TOWARD MIDNIGHT.  FLOODING OF 
CREEKS...STREAMS...AND LOW LYING AREAS REMAINS LIKELY. 

$$

CRAVEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 11:47 PM CDT	Flash Flood Warning	JAN	Jones	6 hr
Jun 30, 2:00 AM CDT	Flash Flood Warning	JAN	Clarke	6 hr
Jun 30, 3:34 AM CDT	Flash Flood Warning	JAN	Kemper, Lauderdale	6 hr
Jun 30, 7:26 AM CDT	Flash Flood Warning	JAN	Grenada	3 hr
Jun 30, 5:08 PM CDT	Flash Flood Warning	JAN	Jones	6 hr

Nearby

Flash Flood Warnings in Mississippi, 2003 Every 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.