Alert archive / Mississippi / Flash Flood Warnings in 2003

Flash Flood Warning 68, NWS Jackson, MS

June 14, 2003Lamar County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jun 14, 2003, 3:53 PM CDT for Lamar 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: Jun 14, 2003, 3:53 PM CDT (20:53 UTC)
Expired: Jun 14, 2003, 5:55 PM CDT
In force: 2 hr
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Lamar County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.9 hours before the alert went out and 110 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: 2532 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 565 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 88 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 142056
FFWJAN
MSC073-142255-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
353 PM CDT SAT JUN 14 2003

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LAMAR COUNTY IN SOUTHEAST MISSISSIPPI

* UNTIL 555 PM CDT

* AT 353 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT 3 TO 
4 INCHES OF RAIN HAS FALLEN OVER NORTHERN PORTIONS OF LAMAR COUNTY 
IN THE PAST THREE HOURS. ADDITIONAL RAINFALL AMOUNTS OF UP TO AN 
INCH WILL BE POSSIBLE AS THUNDERSTORMS MOVE REPEATEDLY OVER THE 
SAME AREAS. 

ADDITIONAL HEAVY RAINS WILL AGGRAVATE ANY EXISTING FLOODING OF SMALL 
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES.  
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS 
AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

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 3105 8963 3106 8940 3134 8936 3142 8949
          3143 8963

$$

1 follow-up statement

000 
WGUS74 KJAN 142209
FFSJAN
MSC073-142355-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
510 PM CDT SAT JUN 14 2003

FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 555 PM CDT FOR...

LAMAR COUNTY IN SOUTHEAST MISSISSIPPI

AT 505 PM...NATIONAL WEATHER SERVICE DOPPLER RADARS INDICATED 
CONTINUED MODERATE RAINFALL OVER MUCH OF THE COUNTY...ESPECIALLY
ALONG AND SOUTH OF HIGHWAY 98.  THUNDERSTORM INTENSITIES WERE 
BEGINNING TO DIMINISH SOMEWHAT WITH RAINFALL RATES DROPPING TO 
ONE HALF INCH OR LESS PER HOUR.  RUNOFF SHOULD GRADUALLY SUBSIDE
BY AROUND 6 PM IF CURRENT TRENDS CONTINUE AND THE WARNING SHOULD 
EXPIRE AS SCHEDULED. 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 2:26 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Lamar	44 min
Jun 14, 4:04 PM CDT	Flash Flood Warning	JAN	Rankin	2 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.