Alert archive / Mississippi / Flash Flood Warnings in 2002

Flash Flood Warning 22, NWS Jackson, MS

July 11, 2002Attala County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 11, 2002, 4:26 PM CDT for Attala County, Mississippi. It was in force for 84 min. 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 11, 2002, 4:26 PM CDT (21:26 UTC)
Expired: Jul 11, 2002, 5:50 PM CDT
In force: 84 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Attala County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.4 hours before the alert went out and 99 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: 1493 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 990 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 79 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 112126
FFWJAN
MSC007-112250-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
425 PM CDT THU JUL 11 2002

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ATTALA COUNTY IN CENTRAL MISSISSIPPI

* UNTIL 550 PM CDT

* AT 424 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER ATTALA COUNTY...      
  ABOUT 9 MILES NORTHWEST OF KOSCIUSKO.  THE THUNDERSTORMS WERE      
  NEARLY STATIONARY.

DOPPLER RADAR INDICATED THAT BETWEEN 3 AND 4 INCHES OF RAIN HAS      
FALLEN OVER NORTHWEST ATTALA COUNTY BETWEEN 315 AND 425 PM. 
ADDITIONAL RAINFALL OF UP TO 2 INCHES IS LIKELY OVER THIS AREA 
THROUGH 550 PM.  THIS WILL LIKELY CAUSE FLOODING OF LOW LYING AREAS 
AND SMALL STREAMS.  

HIGHWAYS 440 AND 19 NEAR SHARKEY CREEK AND THE AREA ALONG HIGHWAY 35 
NEAR SUGAR CREEK ARE THE MOST LIKELY AREAS TO RECEIVE 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 3308 8979 3308 8957 3326 8957 3325 8970

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 12:10 PM CDT	Flash Flood Warning	JAN	Lamar	115 min
Jul 11, 12:16 PM CDT	Severe Thunderstorm Warning	JAN	Kemper	39 min
Jul 11, 12:30 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis	40 min
Jul 11, 1:16 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena	39 min
Jul 11, 1:56 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	44 min
Jul 11, 1:58 PM CDT	Severe Thunderstorm Warning	JAN	Sharkey	47 min
Jul 11, 2:08 PM CDT	Severe Thunderstorm Warning	JAN	Leake	42 min
Jul 11, 2:13 PM CDT	Severe Thunderstorm Warning	JAN	Madison	47 min
Jul 11, 2:52 PM CDT	Severe Thunderstorm Warning	JAN	Scott	43 min
Jul 11, 3:12 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	38 min
Jul 11, 3:33 PM CDT	Severe Thunderstorm Warning	JAN	Scott	42 min
Jul 11, 3:49 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	36 min

Nearby

Flash Flood Warnings in Mississippi, 2002 Every flash flood warning in 2002

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.