Alert archive / Mississippi / Flash Flood Warnings in 2003

Flash Flood Warning 22, NWS Jackson, MS

February 21, 20034 counties in Mississippi

NWS Jackson, MS issued this flash flood warning at Feb 21, 2003, 10:34 PM CST for 4 counties in 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: Feb 21, 2003, 10:34 PM CST (04:34 UTC)
Expired: Feb 22, 2003, 4:30 AM CST
In force: 6 hr
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

Counties Clarke County, MS, Jasper County, MS, Kemper County, MS, Lauderdale County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 4.6 hours before the alert went out and 112 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 589 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 289 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 220434
FFWJAN
MSC023-061-069-075-221030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1034 PM CST FRI FEB 21 2003

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

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

* UNTIL 430 AM CST

* AT 1029 PM CST...A LINE OF THUNDERSTORMS PRODUCING VERY HEAVY 
RAINFALL WAS APPROACHING THE AREA FROM THE WEST...AND CURRENTLY 
EXTENDED FROM PHILADELPHIA IN NESHOBA COUNTY TO PRENTISS IN 
JEFFERSON DAVIS COUNTY.  

ABOUT 3 INCHES OF RAIN HAS ALREADY BEEN MEASURED AT KEY FIELD IN 
MERIDIAN SINCE EARLY THIS MORNING.  RADAR ESTIMATES THAT 2 TO 4 
INCHES HAS FALLEN OVER EAST CENTRAL MISSISSIPPI SO FAR.  RAINFALL 
RATES OF ABOUT 1 INCH PER HOUR WILL BEGIN SHORTLY AND CONTINUE FOR 2 
TO 3 HOURS.  THUS...FLOODING OF STREETS...STREAMS...AND LOW LYING 
AREAS WILL LIKELY OCCUR OVERNIGHT.  

FLOODING AT NIGHT IS ESPECIALLY DANGEROUS...SINCE THE DEPTH OF WATER 
IS DIFFICULT TO DETERMINE.  AVOID DRIVING INTO FLOODED AREAS AND 
MOVE TO HIGHER GROUND IF FLOODING IS OBSERVED.

LAT...LON 3291 8890 3221 8890 3222 8933 3183 8932
          3186 8887 3191 8850 3291 8837

$$

CRAVEN

1 follow-up statement

000 
WGUS74 KJAN 221036
FFSJAN
MSC023-061-069-075-221135-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
435 AM CST SAT FEB 22 2003

THE FLASH FLOOD WARNING EXPIRED AT 430 AM FOR...

CLARKE COUNTY IN EAST CENTRAL MISSISSIPPI
JASPER COUNTY IN EAST CENTRAL MISSISSIPPI
LAUDERDALE COUNTY IN EAST CENTRAL MISSISSIPPI
KEMPER COUNTY IN EAST CENTRAL MISSISSIPPI
 
AT 435 AM CST...DOPPLER RADAR INDICATED SCATTERED SHOWERS AND A FEW 
THUNDERSTORMS REDEVELOPING ACROSS WESTERN MISSISSIPPI. THESE STORMS 
WILL MOVE RAPIDLY TO THE NORTHEAST ACROSS THE FLOOD WARNED AREA 
LATER THIS MORNING. ALTHOUGH AROUND ANOTHER QUARTER INCH OF RAINFALL 
IS POSSIBLE OVER THE AREA...NO RENEWED FLOODING IS EXPECTED TO OCCUR 
THIS MORNING. FLOODWATERS WILL CONTINUE TO GRADUALLY SUBSIDE.

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 21, 6:00 PM CST	Flash Flood Warning	JAN	Covington	6 hr
Feb 21, 6:20 PM CST	Flash Flood Warning	JAN	Hinds, Rankin, Scott, Warren	6 hr
Feb 21, 7:07 PM CST	Flash Flood Warning	JAN	Leake, Madison, Neshoba, Newton	6 hr
Feb 21, 7:11 PM CST	Severe Thunderstorm Warning	JAN	Franklin, Lincoln	59 min
Feb 21, 7:51 PM CST	Flash Flood Warning	JAN	Claiborne, Jefferson	3 hr
Feb 21, 7:59 PM CST	Flash Flood Warning	JAN	Copiah, Simpson, Smith	6 hr
Feb 21, 8:05 PM CST	Tornado Warning	JAN	Lincoln	30 min
Feb 21, 8:27 PM CST	Tornado Warning	JAN	Lawrence	43 min
Feb 21, 8:39 PM CST	Severe Thunderstorm Warning	JAN	Copiah, Simpson	41 min
Feb 21, 8:46 PM CST	Severe Thunderstorm Warning	JAN	Rankin	44 min
Feb 21, 8:48 PM CST	Severe Thunderstorm Warning	JAN	Rankin	42 min
Feb 21, 9:03 PM CST	Severe Thunderstorm Warning	JAN	Lincoln	32 min
Feb 21, 9:28 PM CST	Severe Thunderstorm Warning	JAN	Rankin	47 min
Feb 21, 9:38 PM CST	Tornado Warning	JAN	Lawrence	32 min
Feb 21, 9:44 PM CST	Tornado Warning	JAN	Jefferson Davis	46 min
Feb 21, 9:50 PM CST	Severe Thunderstorm Warning	JAN	Scott, Smith	45 min
Feb 21, 9:57 PM CST	Severe Thunderstorm Warning	JAN	Leake	28 min
Feb 21, 10:13 PM CST	Tornado Warning	JAN	Covington	42 min
Feb 21, 10:19 PM CST	Flash Flood Warning	JAN	Attala, Choctaw, Clay, Lowndes, Montgomery, Noxubee and 3 more	6 hr
Feb 21, 10:19 PM CST	Tornado Warning	JAN	Simpson, Smith	46 min
Feb 21, 10:53 PM CST	Severe Thunderstorm Warning	JAN	Jasper	47 min
Feb 21, 11:31 PM CST	Severe Thunderstorm Warning	JAN	Newton, Scott	44 min
Feb 21, 11:46 PM CST	Severe Thunderstorm Warning	JAN	Lowndes	19 min
Feb 21, 11:54 PM CST	Severe Thunderstorm Warning	JAN	Neshoba	41 min
Feb 21, 11:59 PM CST	Tornado Warning	JAN	Neshoba	31 min
Feb 22, 12:02 AM CST	Tornado Warning	JAN	Marion	43 min
Feb 22, 12:16 AM CST	Tornado Warning	JAN	Lamar	44 min
Feb 22, 12:20 AM CST	Severe Thunderstorm Warning	JAN	Winston	45 min
Feb 22, 12:35 AM CST	Severe Thunderstorm Warning	JAN	Lowndes, Noxubee	60 min
Feb 22, 1:02 AM CST	Severe Thunderstorm Warning	JAN	Clay	43 min
Feb 22, 1:12 AM CST	Severe Thunderstorm Warning	JAN	Neshoba	43 min

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.