Alert archive / Mississippi / Flash Flood Warnings in 2003

Flash Flood Warning 49, NWS Jackson, MS

May 5, 2003Sunflower County, Mississippi

NWS Jackson, MS issued this flash flood warning at May 5, 2003, 8:39 PM CDT for Sunflower County, Mississippi. It was in force for 3 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: May 5, 2003, 8:39 PM CDT (01:39 UTC)
Expired: May 5, 2003, 11:40 PM CDT
In force: 3 hr
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Sunflower County, MS

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 1.7 hours before the alert went out and 121 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: 1533 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 824 m above ground
0-6 km bulk shear: 91 kt
0-1 km storm-relative helicity: 202 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KJAN 060140
FFWJAN
MSC133-060440-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
839 PM CDT MON MAY 5 2003

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN SUNFLOWER COUNTY IN NORTHWEST MISSISSIPPI

* UNTIL 1140 PM CDT

* AT 839 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN 9 MILES WEST OF DREW...OR
  ABOUT 8 MILES SOUTHEAST OF SHELBY...MOVING EAST AT 40 MPH.

RADAR ESTIMATED RAINFALL AMOUNTS NEAR 2 INCHES AN HOUR ARE FALLING 
FROM THIS THUNDERSTORM. THIS AREA HAS RECEIVED 3 TO 5 INCHES OF RAIN 
OVER THE PAST 12 HOURS. AN ADDITIONAL 2 INCHES WILL BE POSSIBLE 
THROUGH 1140 PM.

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 3396 9066 3374 9066 3375 9047 3398 9048

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 7:01 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar	59 min
May 5, 7:07 PM CDT	Flash Flood Warning	JAN	Bolivar	3 hr
May 5, 7:15 PM CDT	Severe Thunderstorm Warning	JAN	Leflore	40 min
May 5, 7:25 PM CDT	Tornado Warning	JAN	Sunflower	20 min
May 5, 7:30 PM CDT	Tornado Warning	JAN	Bolivar	40 min
May 5, 7:52 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Grenada	43 min
May 5, 8:10 PM CDT	Tornado Warning	JAN	Bolivar	60 min
May 5, 8:18 PM CDT	Flash Flood Warning	JAN	Grenada	102 min
May 5, 8:20 PM CDT	Tornado Warning	JAN	Grenada	30 min
May 5, 8:32 PM CDT	Tornado Warning	JAN	Montgomery, Webster	58 min
May 5, 8:35 PM CDT	Tornado Warning	JAN	Sunflower	50 min
May 5, 9:10 PM CDT	Tornado Warning	JAN	Bolivar	25 min
May 5, 9:24 PM CDT	Tornado Warning	JAN	Clay	31 min
May 5, 9:25 PM CDT	Tornado Warning	JAN	Sunflower	30 min
May 5, 9:53 PM CDT	Tornado Warning	JAN	Lowndes	27 min
May 5, 9:59 PM CDT	Severe Thunderstorm Warning	JAN	Grenada	41 min
May 5, 11:55 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar	30 min
May 6, 5:18 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee	22 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.