An upper level disturbance crossed the region as it intercepted rich gulf moisture from the south. The combination of these two features produced locally heavy rains and some flash flooding across central Lauderdale County during the day.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS JAN wrote it up.
An upper level disturbance crossed the region as it intercepted rich gulf moisture from the south. The combination of these two features produced locally heavy rains and some flash flooding across central Lauderdale County during the day. Radar estimated that 3 to 4 inches of rain had fallen across portions of the county.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jackson, MS wrote its last area forecast discussion before the first event at Sep 5, 9:48 AM CST, 2 hours 12 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE JACKSON MS 1048 AM CDT SAT SEP 5 2009 .DISCUSSION...SHOWERS EARLIER THIS MORNING ACROSS PORTIONS OF THE SOUTHEAST HAVE MOSTLY DISSIPATED WITH THE EXCEPTION OF A THUNDERSTORM RIDING ALONG THE MS/AL STATE BORDER. EXPECT THE AREA TO REMAIN RATHER QUIET THROUGH THE NEXT COUPLE OF HOURS. HOWEVER...AS DAYTIME HEATING GETS A LITTLE MORE UNDERWAY...SHOWERS AND ISOLATED THUNDERSTORMS WILL DEVELOP MORE LIKELY DUE IN PART TO THE INVERTED TROUGH AXIS MOVING THROUGH THE REGION AND INTERACTING WITH STRONGER HEATING. THIS SHOULD HELP TO BRING IN A LITTLE BETTER THETA-E AIR INTO THE REGION. MODELS CONTINUE TO INDICATE THE BEST REGION FOR SHOWERS AND ISOLATED TSTMS BEING ACROSS THE SE/SOUTH OF THE NATCHEZ TRACE. THIS IS HANDLED FAIRLY WELL IN THE FORECAST SO LITTLE IN THE WAY OF UPDATES WERE NECESSARY. /28/ && .AVIATION...VFR CLOUD LAYERS GENERALLY ABOVE 6K FEET PREVAILED THIS MORNING ACROSS THE ARKLAMISS WITH SHRA DISSIPATING OVER SERN MS IN ASSOCIATION WITH DEEPER MOISTURE SURGE NWD. EXPECT WIDESPREAD 3-4K FOOT CLOUDS TO BUILD THROUGH THIS AFTERNOON WITH SCATTERED SHRA/TSRA FIRING THROUGH 22Z ALONG THE NATCHEZ TRACE PARKWAY CORRIDOR AND POINTS EAST AS THE EDGE OF BEST MOISTURE INTERACTS WITH STRONGER HEATING. SHRA ACTIVITY SHOULD THIN OUT 01-03Z AS VFR CEILINGS ABOVE 10K FEET PERSIST FOR TONIGHT. LATER OVERNIGHT...AREAS OF MVFR VSBYS IN LIGHT FOG DEVELOPING ABOUT 09-13Z WITH ISOLATED SHRA POSSIBLE AND LOCALIZED STRATUS. EXPECT AREAS OF MVFR CEILINGS ON SUNDAY AS MORE SHRA/TSRA ACTIVITY LIKELY WITH BETTER UPPER TROUGH MOVING IN. WINDS TO REMAIN ESE THIS PERIOD 5-10KTS. /40/ && .PRELIMINARY POINT TEMPS/POPS... JACKSON 85 68 85 67 / 56 32 62 32 MERIDIAN 85 66 86 67 / 66 30 67 33 VICKSBURG 88 68 87 68 / 43 31 57 30 HATTIESBURG 85 68 85 69 / 70 30 66 33 NATCHEZ 85 69 84 68 / 62 30 62 31 GREENVILLE 89 67 87 67 / 25 30 50 25 GREENWOOD 87 68 86 67 / 32 31 60 29 && .JAN WATCHES/WARNINGS/ADVISORIES... MS...NONE. LA...NONE. AR...NONE. && 28/40
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 401 AM CDT SAT SEP 5 2009 ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074- 060915- ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND- MADISON LA-FRANKLIN LA-CATAHOULA-TENSAS-CONCORDIA-BOLIVAR- SUNFLOWER-LEFLORE-GRENADA-CARROLL-MONTGOMERY-WEBSTER-CLAY-LOWNDES- CHOCTAW-OKTIBBEHA-WASHINGTON-HUMPHREYS-HOLMES-ATTALA-WINSTON- NOXUBEE-ISSAQUENA-SHARKEY-YAZOO-MADISON MS-LEAKE-NESHOBA-KEMPER- WARREN-HINDS-RANKIN-SCOTT-NEWTON-LAUDERDALE-CLAIBORNE-COPIAH- SIMPSON-SMITH-JASPER-CLARKE-JEFFERSON-ADAMS-FRANKLIN MS-LINCOLN- LAWRENCE-JEFFERSON DAVIS-COVINGTON-JONES-MARION-LAMAR-FORREST- 401 AM CDT SAT SEP 5 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL MISSISSIPPI... NORTHEAST LOUISIANA...AND EXTREME SOUTHEAST ARKANSAS. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER CALL TO ACTION STATEMENT... THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND EMERGENCY MANAGEMENT PERSONNEL IN SUPPORT OF SEVERE WEATHER OPERATIONS IS NOT EXPECTED THROUGH NEXT FRIDAY. FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.SRH.NOAA.GOV/JAN. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK. COHEN
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 1132 AM CDT SAT SEP 5 2009 MSZ052-051730- LAUDERDALE MS- 1132 AM CDT SAT SEP 5 2009 ...HEAVY RAINS AND LIGHTNING CROSSING MERIDIAN THROUGH 1 PM CDT... A COMPLEX OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING VERY HEAVY RAINS OF 1 TO 2 INCHES WAS SITUATED OVER MERIDIAN AT 1128 AM CDT...MOVING SLOWLY NORTH AT 10 MPH. ADDITIONAL STORMS EXTENDED SOUTHWARD TO AROUND QUITMAN IN CLARKE COUNTY AND THESE WERE ALSO MOVING NORTH. VERY HEAVY RAINS ALONG WITH CLOUD TO GROUND LIGHTNING STRIKES ARE LIKELY WITH THESE STORMS. PONDING OF WATER ON ROADWAYS IS ALSO POSSIBLE AND LOCALIZED FLOODING MAY BECOME A CONCERN IN POOR DRAINAGE AREAS. A FLASH FLOOD WARNING MAY BE NEEDED IF THE STORMS PERSIST LONGER THAN EXPECTED. PEOPLE IN LAUDERDALE COUNTY SHOULD MONITOR THESE STORMS CLOSELY. 40
The Jackson/Brandon,MS radar (KDGX), 120 km away, was scanning. The volume nearest the first event began at 17:59 UTC.
1 flash flood. Local standard time, as filed.
The public reported that numerous streets were flooded in downtown Meridian.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Mississippi in 2009Every state in 2009This day in weather historyWarnings in Mississippi, September 2009
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 192757.