Alert archive / Mississippi / Flash Flood Warnings in 2003

Flash Flood Warning 98, NWS Jackson, MS

July 4, 2003Forrest County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 4, 2003, 2:59 PM CDT for Forrest County, Mississippi. It was in force for 4 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: Jul 4, 2003, 2:59 PM CDT (19:59 UTC)
Expired: Jul 4, 2003, 7:00 PM CDT
In force: 4 hr
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Forrest County, MS

The radar

The Mobile radar (KMOB), 110 km from the middle of the area, began a volume at 20:03 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.0 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-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: 794 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 715 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -55 m²/s²
0-3 km storm-relative helicity: -42 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 042000
FFWJAN
MSC035-050000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
259 PM CDT FRI JUL 4 2003

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

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

* UNTIL 700 PM CDT

* AT 259 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED            
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN NEAR HATTIESBURG.  THE     
  AREA OF HEAVY RAIN WAS NEARLY STATIONARY.

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 8932 3097 8916 3141 8916 3141 8934

$$

1 follow-up statement

000 
WGUS74 KJAN 042215
FFSJAN
MSC035-042310-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
512 PM CDT FRI JUL 4 2003

THE FLASH FLOOD WARNING FOR FORREST COUNTY IN SOUTHEAST MISSISSIPPI 
HAS BEEN CANCELED.

AT 510 PM...RADAR INDICATED THAT THE THUNDERSTORMS RESPONSIBLE FOR 
PRODUCING HEAVY RAINFALL HAVE MOVED OUT OF THE AREA.  THEREFORE... 
THE FLASH FLOOD WARNING HAS BEEN CANCELED.

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 9:59 PM CDT	Flash Flood Warning	JAN	Simpson	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; radar from the NEXRAD Level II archive.