Nearby Mesoscale Convective Systems across Alabama and the northern Gulf coast spread outflow boundaries that sparked clusters of severe thunderstorms across far eastern and coastal southeastern Louisiana.
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.
Nearby Mesoscale Convective Systems across Alabama and the northern Gulf coast spread outflow boundaries that sparked clusters of severe thunderstorms across far eastern and coastal southeastern Louisiana.
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 1, 3:09 PM CST, 27 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
1 thunderstorm wind, 1 flood. Local standard time, as filed.
Broadcast media relayed pictures of damage to an awning carport covering. Time estimated by radar.
Minor street flooding to curb depth on several streets in Arabi. Pea sized hail also reported with this storm. Average rain rate 2 inches per hour and measured 5 inches between 2PM and 430PM.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Louisiana in 2020Every state in 2020This day in weather historyWarnings in Louisiana, July 2020
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 2026-10-01. Each event’s entry at NCEI: 911840, 911847.