The combination of a slow moving upper disturbance, which came from the southern plains and rich gulf moisture produced locally heavy rains and flash flooding across Washington County on the evening of September 14th. Radar estimated that 2 to 4 inches of rain had fallen across Washington County.
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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.
The combination of a slow moving upper disturbance, which came from the southern plains and rich gulf moisture produced locally heavy rains and flash flooding across Washington County on the evening of September 14th. Radar estimated that 2 to 4 inches of rain had fallen across Washington 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 14, 2:45 PM CST, 5 hours 45 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSON MS 345 PM CDT MON SEP 14 2009 .SHORT TERM...LATEST RUC ANALYSIS SHOWS THE WARM FRONT THAT WAS LOCATED ALONG THE GULF COAST THIS MORNING SURGING NORTH...LOCATED ACROSS THE I-20 CORRIDOR AT THIS TIME. THIS IS ACTING AS A FOCUSING MECHANISM FOR SHOWERS AND THUNDERSTORMS ACROSS WESTERN AREAS THIS AFTERNOON AS MORE PRONOUNCED CLEARING THIS MORNING HAS LEAD TO INCREASED DESTABILIZATION IN THESE AREAS. THIS ACTIVITY IS ALSO BEING ENHANCED BY A 30-40KT JET MAX ROUNDING THE BASE OF THE TROF SITUATED OVER EASTERN TEXAS. WEAK MID LEVEL LAPSE RATES SHOULD INHIBIT SEVERE THUNDERSTORM DEVELOPMENT ALTHOUGH A FEW STORMS THIS AFTERNOON MAY BECOME STRONG ENOUGH TO DEVELOP GUSTY WINDS TO NEAR 50 MPH. THIS ACTIVITY IS EXPECTED TO DECREASE IN COVERAGE AND INTENSITY IN THE EVENING...HOWEVER A FEW SHOWERS ACROSS NORTHERN AND EASTERN ZONES MAY LINGER OVERNIGHT. THE LOW PRESSURE SYSTEM OVER EAST TX RESPONSIBLE FOR THE RAIN CHANCES THE LAST FEW DAYS IS EXPECTED TO SLOWLY SHIFT EAST TOWARD THE ARKLAMISS TOMORROW. OUR REGION WILL REMAIN IN SOUTHERLY FLOW THROUGH THE DAY...KEEPING THE LOW LEVEL STREAM OF RICH GULF MOISTURE MOVING IN. THIS IN COMBINATION WITH THE SURFACE BOUNDARY WILL LEAD TO ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS TOMORROW AFTERNOON. ENVIRONMENTAL SHEAR AND MID LEVEL LAPSE RATES WILL REMAIN WEAK HOWEVER...AND DO NOT EXPECT ANY SEVERE WEATHER AT THIS TIME. THE THREAT OF HEAVY RAIN WILL DECREASE SLIGHTLY AS WELL...AS DRY MID AND UPPER LEVEL AIR IS BEGINNING TO GET FED INTO THE SYSTEM DROPPING PW VALUES BELOW 2 IN. AS A RESULT OF THE DRIER MID LEVEL AIR...INCREASED DESTABILIZATION IS POSSIBLE TOMORROW AFTERNOON AND THIS WILL NEED TO BE MONITORED FOR INCREASED CHANCES IN UPDRAFT STRENGTH DURING PEAK HEATING. MORE OF THE SAME IS EXPECTED WEDNESDAY/WEDNESDAY NIGHT AS THE LOW PRESSURE CENTER REMAINS SITUATED OVER EASTERN LA. PW VALUES REMAIN BETWEEN 1.75 AND 2 INCHES SO AFTERNOON SHOWER AND THUNDERSTORM ACTIVITY WILL BE LIKELY ONCE AGAIN...TAPERING OFF IN THE EVENING HOURS. SEVERE TS PARAMETERS REMAIN WEAK AT THIS TIME. MAV GUIDANCE LOOKED GOOD FOR HIGH AND LOW TEMPS WITH ONLY A COUPLE ADJUSTMENTS MADE. /BK/ .PREVIOUS LONG TERM...THE FORECAST AREA WILL REMAIN UNDER THE INFLUENCE OF THE PESKY UPPER TROUGH THROUGH THE LATTER HALF OF THE WORK WEEK...WHILE THE SURFACE LOW TAKES ITS SWEET TIME IN LIFTING NORTH ACROSS THE AREA. THISLL BASICALLY EQUATE TO CONTINUED WARM HUMID CONDITIONS DURING THIS TIME WITH A CHANCE OF SHOWERS AND THUNDERSTORMS DURING THE AFTERNOON HOURS...AND POSSIBLY A FEW DEVELOPING THROUGH THE OVERNIGHT HOURS. AS WE MOVE INTO THE WEEKEND...THE UPPER RIDGE TO THE EAST WILL TRY TO BUILD WEST INTO THE REGION ALLOWING A MORE ZONAL FLOW TO SETUP. RAIN CHANCES SATURDAY AND SUNDAY BECOME MORE ISOLATED AND DIURNAL IN NATURE. HUMID CONDITIONS WILL CONTINUE ACROSS THE REGION AND TEMPERATURES LOOK TO CREEP UP A COUPLE OF DEGREES DURING THE AFTERNOON HOURS. THIS MORE ZONAL FLOW OVER THE REGION LOOKS TO BE SHORT LIVED THOUGH AS MODELS ARE ADVERTISING YET ANOTHER UPPER TROUGH TRYING TO DIG SOUTH AND WEST INTO THE LOWER MISSISSIPPI RIVER VALLEY BY THE END OF THE FORECAST PERIOD. THIS UPPER TROUGH WILL FORCE A COLD FRONT TOWARD AND EVENTUALLY THROUGH THE FORECAST AREA DURING THE FIRST PART OF THE NEXT WORK WEEK. /19/ && .AVIATION...SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL AFFECT THE REGION THROUGH EARLY THIS EVENING AS AN UPPER LOW CONTINUES TO HANG OUT JUST TO THE WEST OF THE AREA. EXPECT A LARGE PORTION OF THIS ACTIVITY TO DIMINISH BY MIDNIGHT WITH LOWER CLOUDS GRADUALLY BUILDING BACK IN. CEILINGS WILL BE PREDOMINANTLY IFR BY DAWN TUESDAY WITH PATCHY FOG POSSIBLE SOUTH OF INTERSTATE TWENTY. EXPECT IFR TO MVFR CONDITIONS TO HANG ON TOMORROW MORNING THROUGH 11 AM TO NOON...BEFORE CEILINGS LIFT UP TO 3 TO 4 KFT. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE AGAIN EXPECTED TO DEVELOP TOMORROW AFTERNOON AND STORMS WILL BE CAPABLE OF GUSTY WINDS AND IFR CONDITIONS. OTHERWISE...EXPECT MAINLY VFR CONDITIONS TOMORROW AFTERNOON WITH SOUTH TO SOUTHEAST WINDS AT 10 MPH. /BB/ && .PRELIMINARY POINT TEMPS/POPS... JACKSON 71 85 70 83 / 39 57 44 59 MERIDIAN 70 86 70 84 / 38 52 46 54 VICKSBURG 71 85 70 83 / 44 65 42 63 HATTIESBURG 72 87 72 85 / 28 62 33 60 NATCHEZ 71 85 71 83 / 37 68 33 58 GREENVILLE 69 83 69 80 / 59 69 62 72 GREENWOOD 70 84 70 81 / 59 62 62 68 && .JAN WATCHES/WARNINGS/ADVISORIES... MS...NONE. LA...NONE. AR...NONE. && 45/50
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 242 PM CDT MON SEP 14 2009 ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074- 151945- 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- 242 PM CDT MON SEP 14 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL MISSISSIPPI... NORTHEAST LOUISIANA...AND EXTREME SOUTHEAST ARKANSAS. .DAY ONE...TONIGHT AND TUESDAY NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED ACROSS THE AREA THROUGH EARLY THIS EVENING AND THEN AGAIN TUESDAY AFTERNOON AS A SLOW MOVING ATMOSPHERIC DISTURBANCE HEADS TOWARD THE LOWER MISSISSIPPI VALLEY FROM OUT OF EASTERN TEXAS. TORRENTIAL DOWNPOURS AND GUSTY WINDS TO 40 MPH WILL BE POSSIBLE WITH SOME OF THE THUNDERSTORMS AND RAINFALL AMOUNTS COULD RANGE FROM 1 TO 3 INCHES THROUGH LATER ON TUESDAY IN ISOLATED LOCATIONS. PONDING OF WATER ON ROADWAYS COULD RESULT FROM THESE RAINFALL AMOUNTS...BUT WIDESPREAD FLOODING PROBLEMS ARE NOT CURRENTLY ANTICIPATED. .DAYS TWO THROUGH SEVEN...TUESDAY NIGHT THROUGH SUNDAY ABOVE NORMAL RAINFALL CHANCES WILL CONTINUE THROUGH AT LEAST THURSDAY...BUT 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 SUNDAY. FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.SRH.NOAA.GOV/JAN. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK. 50
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 638 PM CDT MON SEP 14 2009 MSZ048-049-150025- HINDS MS-RANKIN MS- 638 PM CDT MON SEP 14 2009 A STRONG THUNDERSTORM CAPABLE OF PRODUCING PEA TO DIME SIZE HAIL AND 40 TO 50 MPH WINDS WAS LOCATED OVER RICHLAND AT 639 PM CDT...MOVING NORTH AT 10 MPH. VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE ALSO POSSIBLE WITH THIS STORM. HIGH WINDS CAN BRING DOWN TREES AND LARGE LIMBS RESULTING IN SERIOUS INJURY OR PROPERTY DAMAGE. EXERCISE EXTREME CAUTION WHEN OUTDOORS DURING SUCH STRONG WINDS...AND BE ESPECIALLY AWARE OF OLDER TREES. PEOPLE IN WEST CENTRAL RANKIN AND EAST CENTRAL HINDS COUNTIES SHOULD MONITOR THIS STORM CLOSELY. OLB
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 701 PM CDT MON SEP 14 2009 MSZ054-150050- COPIAH MS- 701 PM CDT MON SEP 14 2009 A STRONG THUNDERSTORM CAPABLE OF PRODUCING PEA TO DIME SIZE HAIL AND 40 TO 50 MPH WINDS WAS LOCATED 3 MILES NORTH OF BARLOW AT 702 PM CDT...MOVING NORTH AT 15 MPH. VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE ALSO POSSIBLE WITH THIS STORM. THIS STORM IS INTENSIFYING AND COULD BECOME SEVERE RAPIDLY. HIGH WINDS CAN BRING DOWN TREES AND LARGE LIMBS RESULTING IN SERIOUS INJURY OR PROPERTY DAMAGE. EXERCISE EXTREME CAUTION WHEN OUTDOORS DURING SUCH STRONG WINDS...AND BE ESPECIALLY AWARE OF OLDER TREES. PEOPLE IN WESTERN COPIAH COUNTY SHOULD MONITOR THIS STORM CLOSELY. COHEN
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 823 PM CDT MON SEP 14 2009 MSZ040>043-047-048-150220- HINDS MS-WARREN MS-MADISON MS-SHARKEY MS-ISSAQUENA MS-YAZOO MS- 823 PM CDT MON SEP 14 2009 CLUSTERS OF STRONG SHOWERS AND THUNDERSTORMS WILL MOVE NORTHWARD AT 15 MPH ACROSS THE FOLLOWING LOCATIONS THROUGH 920 PM CDT...WESTERN YAZOO...EAST CENTRAL ISSAQUENA...SOUTHEASTERN SHARKEY...WEST CENTRAL MADISON...NORTHEASTERN WARREN...AND NORTHWESTERN HINDS COUNTIES. THESE SHOWERS AND THUNDERSTORMS WILL BE CAPABLE OF PRODUCING VERY HEAVY RAIN AND WIND GUSTS UP TO 40 MPH. HIGH WINDS CAN BRING DOWN TREES AND LARGE LIMBS RESULTING IN SERIOUS INJURY OR PROPERTY DAMAGE. EXERCISE EXTREME CAUTION WHEN OUTDOORS DURING SUCH STRONG WINDS...AND BE ESPECIALLY AWARE OF OLDER TREES. BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH. COHEN
The Jackson/Brandon,MS radar (KDGX), 128 km away, was scanning. The volume nearest the first event began at 02:29 UTC.
1 flash flood. Local standard time, as filed.
A few roads and streets were under water across the city of Hollandale.
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: 192760.