Isolated strong to severe thunderstorms developed in an unstable atmosphere.
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 LIX wrote it up.
Isolated strong to severe thunderstorms developed in an unstable atmosphere.
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 10, 3:31 AM CST, 8 hours 39 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NEW ORLEANS LA 431 AM CDT TUE JUL 10 2007 .SHORT TERM... UPPER TROUGH IS STUBBORN TO MOVE EAST...OR ATLEAST FAR ENOUGH TO DECREASE POP NUMBERS SIGNIFICANTLY. BUT THE CURRENT UPPER TROUGH WILL WEAKEN AS ANOTHER STRONGER TROUGH MOVES INTO THE SOUTHERN PLAINS TODAY THROUGH WED. THIS WILL ONLY HELP KEEP POP NUMBERS IN THE SCATTERED CATEGORY EACH DAY WITH A DIURNAL FLUCTUATION...WITH THE EXCEPTION OF COASTAL LOCATIONS WHICH WILL SEE NOCTURNAL MARINE SH/TS MOVE ONSHORE BY LATE NIGHT EARLY MORNING HOURS. TS ACTIVITY IS NOT EXPECTED TO BE SEVERE TODAY WITH ONLY MODERATE NUMBERS POINTING TO AN ISOLATED STRONG TS WITH A MAX OF 38 KNOT WIND GUSTS FOR BTR. BY THE TIME ONE GETS TO GPT THIS NUMBERS DROPS TO 30 KNOTS. .LONG TERM... ANOTHER EVEN STRONGER SURGING UPPER TROUGH MOVES INTO THE SOUTHERN PLAINS BY THURSDAY WITH A SFC REFLECTING COLD FRONT. ANY TIME WE SEE COLD FRONTS MOVE INTO THE SUBTROPICS THIS TIME OF YEAR...IT IS NOT ONLY UNUSUAL BUT CAN MAKE FOR SOME NASTY WEATHER AS WELL. AS WINDS PARALLEL THE FRONT WITH HEIGHT...IT WILL SLOW AND EVENTUALLY COME TO A HALT ALONG THE COAST. THIS WILL REINFORCE THE TS COVERAGE BY DEEPING THE MOISTURE AND PROVIDING A BETTER FOCUS FOR TS DEVELOPMENT OVER THE WEEKEND. && .PRELIMINARY POINT TEMPS/POPS... MCB 91 72 92 73 / 40 20 30 20 BTR 92 75 93 75 / 40 20 30 20 MSY 91 78 92 77 / 40 20 30 20 GPT 89 78 91 76 / 40 20 30 20 && .LIX WATCHES/WARNINGS/ADVISORIES... LA...NONE. GM...NONE. MS...NONE. GM...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 1241 PM CDT TUE JUL 10 2007 LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-111130- 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- 1241 PM CDT TUE JUL 10 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI. .DAY ONE...THIS AFTERNOON AND TONIGHT ISOLATED STRONG THUNDERSTORMS WILL BE POSSIBLE THROUGH THE EARLY EVENING HOURS...WITH GUSTY WINDS UP TO 40 MPH...FREQUENT LIGHTNING... AND HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SCATTERED THUNDERSTORMS ARE EXPECTED EACH AFTERNOON AND EVENING. ISOLATED STRONG THUNDERSTORMS AND LOCALLY HEAVY RAINFALL WILL BE POSSIBLE EACH DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED TODAY. 92/JSS
The national radar mosaic for the moment the first event began.
1 thunderstorm wind. Local standard time, as filed.
Trees were blown down on Sibley Road off of Highway 1064.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Louisiana in 2007Every state in 2007This day in weather historyWarnings in Louisiana, July 2007
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: 49684.