Showers and thunderstorms developed in association with a cold front. Some of the thunderstorms brought damaging winds to portions of southeast Arkansas, northeast Louisiana, and west Mississippi.
Every event with a place to put it. Tap one for its entry below.
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.
Showers and thunderstorms developed in association with a cold front. Some of the thunderstorms brought damaging winds to portions of southeast Arkansas, northeast Louisiana, and west Mississippi.
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 Oct 1, 7:48 PM CST, 2 hours 5 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE JACKSON MS 848 PM CDT THU OCT 1 2009 ...SOME SEVERE STORMS POSSIBLE ACROSS THE WEST TONIGHT... .UPDATE...THIS UPDATE WILL FOCUS ON THE CONVECTIVE POTENTIAL AND STRONG/SVR STORM RISK FOR THE REST OF TONIGHT INTO EARLY FRI. OVER THE PAST HOUR (00-01Z) THE CONVECTIVE CLUSTER TO OUR W/NW HAS INTENSIFIED AND BECOME MORE ORGANIZED AS SEVERAL CELL MERGERS HAVE OCCURRED. THIS ALSO HAS OCCURRED IN A VERY UNSTABLE AIRMASS WITH STRONG FORCING DRIVING IT. THE 00Z SHV RAOB WAS PRETTY SOLID WITH 3000 J/KG OF MLCAPE AND DECENT LOW LEVEL TO DEEP LAYER SHEAR. THE 0-1 KM SHEAR WAS 25KTS WITH 200 M2/S2 OF 0-1KM SRH. DEEP LAYER SHEAR WAS ALSO QUITE GOOD WITH 44KTS OF 0-6KM SHEAR. ALL THIS IS BEING DRIVEN BY A FAIRLY LARGE UPPER LOW WHICH HAS TAKEN ON A NEG TILT AND IS SPREADING STRONG ASCENT ACROSS THE ARKLATEX REGION WHICH SHOULD PUSH E OVER OUR AREA A BIT LATER TONIGHT. OVERALL...THINGS ARE PROGRESSING ON TRACK TO WHAT HAS BEEN TALKED ABOUT THE PAST FEW DAYS. THE MAIN ISSUE FOR OUR CWA IS INSTABILITY AND THE FACT THAT MOST OF THE UNSTABLE AIR LIES ON OUR WESTERN BOARDER AND JUST TO THE WEST OF THAT. GUID CONTINUES TO INDICATE THAT THERE WILL BE A SURGE OF HIGHER DEWPTS WHICH WILL RESULT IN A TONGUE OF 500-1000 J/KG OF MLCAPE JUST IN ADVANCE OF THE EVOLVING SQUALL LINE. THIS INSTABILITY AXIS IS PROGGED TO GET PINCHED OFF WHICH WILL RESULT IN PRETTY MEAGER MLCAPE VALUES FOR LOCATIONS ALONG AND E OF I-55. AS A RESULT...WILL CONTINUE TO SHOW THE BEST SVR STORM RISK OVER THE NW/W HALF. DAMAGING WINDS WILL BE THE PRIMARY THREAT BUT ENOUGH LOW LEVEL SHEAR WILL EXIST FOR A COUPLE TORNADOES IF SOME SORT OF MESO CAN GET GOING WITHIN A BOWING LINE SEGMENT. IF ANY HAIL WOULD BE POSSIBLE...IT WOULD BE ACROSS AREAS ALONG AND W OF THE MS RIVER AND BE SMALLER THAN NICKEL SIZE. AREAS ALONG AND E OF I-55 WILL HAVE LIMITED INSTABILITY AND I AM ONLY EXPECTING A FEW STRONG LINE SEGMENTS WITH SOME GUSTY WINDS TO 30-40 MPH. AS FOR TIMING...LOOKS LIKE THE NW 1/3RD WILL SEE ACTIVITY BETWEEN 10PM AND 2 AM...CENTRAL 1/3RD (TRACE CORRIDOR) BETWEEN 2-6 AM...THEN THE SE 1/3RD (I-59) BETWEEN 6-10 AM. THE WIDTH OF THE CONVECTIVE LINE SHOULD BE SIMILAR TO WHAT IT IS NOW IF NOT A TAD SMALLER. LOOK FOR SKIES TO CLEAR QUICKLY BEHIND THE LINE WITH QUIET CONDITIONS FOR THE MAJORITY OF FRI. AS FOR THE FORECAST ELEMENTS...I MADE SOME ADJ TO THE HOURLY TEMPS TO PATTERN THE FROPA/CONVECTIVE LINE PASSAGE. I ALSO HAD TO ADJ DEWPTS TO MATCH THAT. OUTSIDE THAT...ALL ELSE IS ON TRACK. I MAY MAKE SOME SMALL ADJ LATER TO MATCH CURRENT TRENDS. && .AVIATION...MAIN FOCUS FOR THIS TAF PERIOD IS TIMING THE CONVECTIVE LINE AND USING A 2-4 HR WINDOW TO FIT IN THE LOWER CONDITIONS AS THE LINE PUSHES THROUGH THE AREA. THERE MAY BE SOME PERIOD JUST AHEAD OF THE CONVECTIVE LINE WERE SOME MVFR CEILINGS DEVELOP AND I WILL COVER THAT MAINLY FOR SITES ALONG AND E/SE OF THE NATCHEZ TRACE. SFC WINDS SHOULD NOT BE TOO BAD...SE WINDS WILL BE 7-10KTS ACROSS THE DELTA REGION AHEAD OF THE LINE THEN SHIFT TO MORE OF A NW DIRECTION AFTER THE CONVECTION PASSES AND BE 5-10KTS. THE FURTHER E YOU ARE...WINDS WILL BE LIGHTER AHEAD AND BEHIND THE CONVECTIVE LINE. ANY STRONG/SVR STORMS SHOULD BE W OF I-55 WHERE THE GREATEST INSTABILITY WILL EXIST. THE INTENSITY OF THE LINE SHOULD WEAKEN AS IT MOVES E/SE BUT REMAIN INTACT AS IT DOES SO. LOOK FOR CLEAR SKIES TO QUICKLY DEVELOP BEHIND THE CONVECTIVE LINE WITH MVFR CONDITIONS PREVAILING ON FRI. && .PRELIMINARY POINT TEMPS/POPS... JACKSON 62 77 48 81 / 86 44 0 5 MERIDIAN 62 77 46 81 / 54 76 0 5 VICKSBURG 59 78 48 81 / 96 32 0 5 HATTIESBURG 63 80 48 82 / 39 83 0 5 NATCHEZ 63 76 50 81 / 88 42 0 4 GREENVILLE 59 75 48 81 / 100 16 0 4 GREENWOOD 60 75 47 80 / 97 26 0 5 && .JAN WATCHES/WARNINGS/ADVISORIES... MS...NONE. LA...NONE. AR...NONE. && CME
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 240 PM CDT THU OCT 1 2009 ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>027-034>036- 040>042-047-021945- ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND- MADISON LA-FRANKLIN LA-CATAHOULA-TENSAS-CONCORDIA-BOLIVAR- SUNFLOWER-LEFLORE-GRENADA-CARROLL-WASHINGTON-HUMPHREYS-HOLMES- ISSAQUENA-SHARKEY-YAZOO-WARREN- 240 PM CDT THU OCT 1 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND CENTRAL MISSISSIPPI...NORTHEAST LOUISIANA...AND EXTREME SOUTHEAST ARKANSAS. .DAY ONE...TONIGHT AND FRIDAY ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE FROM LATE THIS EVENING INTO THE EARLY MORNING HOURS FRIDAY AS A COLD FRONT AND BROKEN LINE OF THUNDERSTORMS SWEEP AROSS THE AREA. THE MAIN RISK WITH THESE STORMS WILL BE DAMAGING WINDS UP TO 65 MPH...ALTHOUGH LARGE HAIL AND A TORNADO OR TWO MAY ALSO BE POSSIBLE. LOCALLY HEAVY RAINFALL WILL LIKELY OCCUR BUT FLOODING ISSUES ARE NOT EXPECTED. .DAYS TWO THROUGH SEVEN...FRIDAY NIGHT THROUGH WEDNESDAY 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...MAY BE NEEDED TONIGHT INTO THE EARLY MORNING HOURS FRIDAY. MSZ028>033-037>039-044>046-050>052-056>058-066-021945- MONTGOMERY-WEBSTER-CLAY-LOWNDES-CHOCTAW-OKTIBBEHA-ATTALA-WINSTON- NOXUBEE-LEAKE-NESHOBA-KEMPER-SCOTT-NEWTON-LAUDERDALE-SMITH-JASPER- CLARKE-JONES- 240 PM CDT THU OCT 1 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN MISSISSIPPI. .DAY ONE...TONIGHT AND FRIDAY A FEW STRONG THUNDERSTORMS CAPABLE OF PRODUCING WIND GUSTS UP TO 50 MPH AND SMALL HAIL WILL BE POSSIBLE AFTER MIDNIGHT INTO THE MORNING HOURS. THESE THUNDERSTORMS WILL LIKELY BE IN A LINE ALONG AND AHEAD OF A COLD FRONT AS IT MOVES SOUTHEAST ACROSS THE AREA. THIS LINE IS EXPECTED TO BE DIMINISHING AS IT MOVES TO THE SOUTHEAST THROUGH THE MORNING. .DAYS TWO THROUGH SEVEN...FRIDAY NIGHT THROUGH WEDNESDAY 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...MAY BE NEEDED AFTER MIDNIGHT INTO FRIDAY MORNING. MSZ043-048-049-053>055-059>065-072>074-021945- MADISON MS-HINDS-RANKIN-CLAIBORNE-COPIAH-SIMPSON-JEFFERSON-ADAMS- FRANKLIN MS-LINCOLN-LAWRENCE-JEFFERSON DAVIS-COVINGTON-MARION- LAMAR-FORREST- 240 PM CDT THU OCT 1 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MISSISSIPPI. .DAY ONE...TONIGHT AND FRIDAY ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE AFTER MIDNIGHT INTO THE MORNING HOURS FRIDAY AS A COLD FRONT AND LINE OF THUNDERSTORMS SWEEP AROSS THE AREA. THE MAIN RISK WITH THESE STORMS WILL BE DAMAGING WINDS UP TO 60 MPH AND HAIL. LOCALLY HEAVY RAINFALL WILL LIKELY OCCUR BUT FLOODING ISSUES ARE NOT EXPECTED. .DAYS TWO THROUGH SEVEN...FRIDAY NIGHT THROUGH WEDNESDAY 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...MAY BE NEEDED AFTER MIDNIGHT INTO FRIDAY MORNING. FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.SRH.NOAA.GOV/JAN. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK. EC/BK
The Little Rock radar (KLZK), 187 km away, was scanning. The volume nearest the first event began at 03:52 UTC.
1 thunderstorm wind. Local standard time, as filed.
A couple of trees were blown down across County Road 17.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arkansas in 2009Every state in 2009This day in weather historyWarnings in Arkansas, October 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: 196447.