Alert archive / Mississippi / Flash Flood Warnings in 2003

Flash Flood Warning 86, NWS Jackson, MS

June 30, 2003Clarke County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jun 30, 2003, 2:00 AM CDT for Clarke 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, 2:00 AM CDT (07:00 UTC)
Expired
Jun 30, 2003, 8:00 AM CDT
In force
6 hr
Issued by
NWS Jackson, MS
Area
Counties, with a storm outline in the text

County Clarke County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 7.0 hours before the alert went out and 130 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 00:00Z on 2003-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1362 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 00:00Z on 2003-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
1362 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1046 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
21 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 300701
FFWJAN
MSC023-301300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
200 AM CDT MON JUN 30 2003

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLARKE COUNTY IN EAST CENTRAL MISSISSIPPI

* UNTIL 800 AM CDT

* AT 200 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN 10 MILES SOUTHEAST OF   
QUITMAN.  THE AREA OF HEAVY RAIN WAS MOVING NORTH AT 20 MPH.

RADAR ESTIMATED RAINFALL AMOUNTS OF ONE TO TWO INCHES PER HOUR ARE 
POSSIBLE WITH TEH PASSAGE OF THE HEAVIER SHOWERS AND THUNDERSTORMS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS.

LAT...LON 3220 8887 3190 8889 3192 8851 3219 8848

$$
2 follow-up statements
000 
WGUS74 KJAN 301105
FFSJAN
MSC023-301300-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
600 AM CDT MON JUN 30 2003

FLASH FLOOD WARNING REMAINS IN EFFECT FOR...

CLARKE COUNTY IN EAST CENTRAL MISSISSIPPI UNTIL 8 AM.

AT 600 AM...DOPPLER RADAR INDICATED AN AREA OF HEAVY RAIN JUST SOUTH 
OF CLARKE COUNTY MOVING NORTH AT 20 MPH. THIS AREA OF RAIN WILL BE 
CAPABLE OF PRODUCING RAINFALL AMOUNTS NEAR 1 INCH AN HOUR. CERTAIN 
AREAS ACROSS CLARKE COUNTY HAVE SEEN 2 TO 3 INCHES OF RAIN FROM 
STORMS SUNDAY EVENING. MORE STORMS WITH HEAVY RAIN ARE DEVELOPING 
ACROSS SOUTHERN MISSISSIPPI...ADDITIONAL RAINS FROM THESE STORMS 
WILL LIKELY ADD ANOTHER 1 TO 2 INCHES OF RAIN ACROSS THE AREA 
THROUGH 8 AM.

$$
000 
WGUS74 KJAN 301255
FFSJAN
MSC023-301300-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
755 AM CDT MON JUN 30 2003

FLASH FLOOD WARNING FOR CLARKE COUNTY WILL BE ALLOWED TO EXPIRE AT 8 
AM. THE AREA OF RAIN THAT IS MOVING THROUGH CLARK COUNTY IS NOT VERY 
HEAVY AND ONLY ONE QUARTER INCH IS EXPECTED DURING THE NEXT HOUR.

MORE HEAVY RAIN IS EXPECTED TO DEVELOP LATER THIS MORNING WHICH 
COULD INCREASE THE FLOODING POTENTIAL. EVERYONE SHOULD STAY INFORMED 
TO LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS HEAVY RAIN 
EVENT.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 11:47 PM CDTFlash Flood WarningJANJones6 hr
Jun 30, 3:34 AM CDTFlash Flood WarningJANKemper, Lauderdale6 hr
Jun 30, 7:26 AM CDTFlash Flood WarningJANGrenada3 hr
Jun 30, 4:28 PM CDTFlash Flood WarningJANForrest, Lamar, Marion6 hr
Jun 30, 5:08 PM CDTFlash Flood WarningJANJones6 hr

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.