1 funnel cloud, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 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 New Orleans, LA wrote its last area forecast discussion before the first event at Jul 22, 2:30 PM CST, 1 hour 8 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 330 PM CDT TUE JUL 22 2003 RCONVECTION STARTING TO FIRE UP IN FORECAST AREA SINCE WE EXCEEDED CONVECTED CONDENSATION TEMPERATURE. BIGGEST THREAT WILL BE WET MICROBURST. MAIN CONCERN FOR EARLY PART OF FORECAST WILL BE AREAS NORTH OF LAKE PONTCHATRAIN AND MS COAST FOR POTENTIAL SEVERE THUNDERSTORMS. RUNNING LATE TODAY. USED GFS FOR GUIDANCE. COLD FRONT WILL BE MOVING SLOWLY THROUGH AREA ON WEDNESDAY. SURFACE MOISTURE FLUX CONVERGENCE IN LOW LEVELS IN VICINITY OF COLD FRONT...DIFFLUENT SURFACE TO 500 MB THICKNESS...AND ABOUT 20 KNOTS 850 TO 300 MB SPEED SHEAR WILL ALL COMBINE TO GIVE A RISK SEVERE THUNDERSTORMS ON WEDNESDAY. MAIN THREAT SHOULD BE WET MICROBURSTS. MCB 75/89 68/90 6522 BTR 76/89/69/90 6522 MSY 77/88 73/89 5633 GPT 76/88 69/89 3633 .NEW...NONE LA...NONE. MS...NONE. 23
LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-231630- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 1130 AM CDT TUE JUL 22 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST LOUISIANA AND EXTREME SOUTHWEST AND COASTAL MISSISSIPPI. .DAY ONE...TODAY AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP LATER THIS AFTERNOON. THUNDERSTORMS WILL BECOME MORE NUMEROUS ALONG AND AHEAD OF A COLD FRONT THAT IS EXPECTED APPROACH THE AREA BY LATE TONIGHT. THE APPROACH OF A MID SUMMER COLD FRONT COMBINED WITH THE TYPICAL HOT AND HUMID CONDITIONS WILL MAKE THE ATMOSPHERE VERY UNSTABLE RESULTING IN A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER MOST OF THE CENTRAL GULF COAST REGION LATER THIS AFTERNOON THROUGH TONIGHT. THE MAIN THREATS FROM THE THUNDERSTORMS ARE EXPECTED TO BE STRONG GUSTY WINDS...LOCALLY HEAVY RAIN AND FREQUENT LIGHTNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SCATTERED SHOWERS AND THUNDERSTORMS ASSOCIATED WITH A WEAK COLD FRONT ACROSS THE AREA ARE EXPECTED TO CONTINUE. THERE WILL BE A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH MOST OF WEDNESDAY. THE CHANCE OF SHOWERS AND THUNDERSTORMS WILL DECREASE THURSDAY AND FRIDAY AS DRIER AIR MOVES IN FROM THE NORTH. SCATTERED MAINLY AFTERNOON SHOWERS AND THUNDERSTORMS ARE EXPECTED TO RETURN AGAIN SATURDAY AND SUNDAY AS MOISTURE IN THE ATMOSPHERE INCREASES. .SPOTTER INFORMATION STATEMENT... THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY MANAGEMENT PERSONNEL...IN SUPPORT OF SEVERE WEATHER OPERATIONS...IS NOT REQUESTED AT THIS TIME.
The national radar mosaic for the moment the first event began.
1 funnel cloud. Local standard time, as filed.
A funnel cloud was observed over Airline Highway.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Louisiana in 2003Every state in 2003This day in weather historyWarnings in Louisiana, July 2003
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: 5372609.