1 lightning, 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 8, 1:20 PM CST, 25 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 220 PM CDT THU JUL 8 2004 .DISCUSSION... NUMEROUS THUNDERSTORMS HAVE FORMED ALONG THE LEADING EDGE OF A STATIONARY UPPER LEVEL TROUGH IN THE RIVER PARISHES BETWEEN NEW ORLEANS AND BATON ROUGE TODAY. THUNDERSTORMS COULD LINGER ON INTO THE EARLY EVENING HOURS BEFORE DIMINISHING. CONVECTIVE COVERAGE CONTINUE TO DECREASE ON FRIDAY WITH POPS DECREASING TO BELOW CLIMATOLOGICAL AVERAGES FOR THE WEEKEND AND INTO THE EARLY PART OF THE NEXT WORK WEEK. MODELS INDICATE DRIER AIR WORKING INTO THE AREA FROM THE EAST DURING THE DAY FRIDAY...SO WILL HAVE THE HIGHEST PRECIPITATION CHANCES...50 PERCENT...ACROSS WESTERN SECTIONS OF THE FORECAST AREA FRIDAY WITH SOMEWHAT LOWER POPS FARTHER EAST. AS AN UPPER RIDGE BEGINS TO EXPAND ACROSS THE GULF COAST/SOUTHEAST OVER THE WEEKEND...PRECIPITATION CHANCES SHOULD BE ON THE DECREASE WHILE TEMPERATURES BEGIN TO RISE. THIS PATTERN WILL HOLD THROUGH AT LEAST THE EARLY PART OF THE WORK WEEK BEFORE THE UPPER RIDGE BEGINS TO MOVE TO THE WEST AS AN UPPER TROUGH DIGS ACROSS THE EASTERN CONUS DURING THE MIDDLE AND END OF NEXT WEEK BRINGING PERHAPS A BETTER CHANCE OF CONVECTION TO THE AREA AGAIN. && PRELIMINARY POINT NUMBERS... MCB 70 90 71 91 / 30 50 20 10 BTR 72 91 72 92 / 30 50 20 10 MSY 74 91 74 92 / 30 40 20 20 GPT 73 90 74 91 / 30 40 20 20 && .LIX WATCHES/WARNINGS/ADVISORIES... LA...NONE. MS...NONE. SE LA AND MS COASTAL WATERS...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 1100 AM CDT THU JUL 8 2004 LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-090000- AMITE-ASCENSION-ASSUMPTION-EAST BATON ROUGE-EAST FELICIANA-HANCOCK- HARRISON-IBERVILLE-JACKSON-LIVINGSTON-LOWER JEFFERSON- LOWER LAFOURCHE-LOWER PLAQUEMINES-LOWER ST BERNARD-LOWER TERREBONNE- ORLEANS-PEARL RIVER-PIKE-POINTE COUPEE-ST CHARLES-ST HELENA-ST JAMES- ST JOHN THE BAPTIST-ST TAMMANY-TANGIPAHOA-UPPER JEFFERSON- UPPER LAFOURCHE-UPPER PLAQUEMINES-UPPER ST BERNARD-UPPER TERREBONNE- WALTHALL-WASHINGTON-WEST BATON ROUGE-WEST FELICIANA-WILKINSON- 1100 AM CDT THU JUL 8 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL AND SOUTHEAST LOUISIANA AND EXTREME SOUTHWEST...SOUTH CENTRAL AND COASTAL MISSISSIPPI. .DAY ONE...TODAY AND TONIGHT SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED THIS AFTERNOON BEFORE DIMINISHING DURING THE EVENING HOURS. ALTHOUGH WIDESPREAD ORGANIZED SEVERE WEATHER IS NOT EXPECTED THROUGH TONIGHT...A FEW STORMS MAY BECOME STRONG OR SEVERE THIS AFTERNOON AND PRODUCE DAMAGING WINDS. ANY THUNDERSTORMS TODAY WILL BE CAPABLE OF PRODUCING FREQUENT LIGHTNING AND HEAVY DOWNPOURS OF RAIN. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SCATTERED THUNDERSTORMS WILL BE POSSIBLE EACH DAY ESPECIALLY DURING THE AFTERNOON AND EARLY EVENING HOURS. ORGANIZED SEVERE THUNDERSTORMS ARE NOT EXPECTED DURING THE PERIOD...HOWEVER A FEW STRONG THUNDERSTORMS WILL BE POSSIBLE. .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 lightning. Local standard time, as filed.
A power surge caused by lightning caused minor electrical fires at three businesses.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Louisiana in 2004Every state in 2004This day in weather historyWarnings in Louisiana, July 2004
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: 5412543.