A weather pattern in the upper atmosphere favored the development of showers and thunderstorms across the area. At the surface, a stalled frontal boundary stretched from west to east near the I-12 corridor and provided a focus for repeated thunderstorm development.
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.
A weather pattern in the upper atmosphere favored the development of showers and thunderstorms across the area. At the surface, a stalled frontal boundary stretched from west to east near the I-12 corridor and provided a focus for repeated thunderstorm development. Thunderstorms repeatedly developed and moved over the same areas along the boundary, producing very heavy rainfall across portions of metro Baton Rouge and the Northshore region of metro New Orleans and resulting in flash flooding.
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 Jun 16, 12:04 PM CST, 11 minutes earlier.
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</html>Preliminary Local Storm Report
National Weather Service New Orleans LA
1040 AM CDT Tue Jun 16 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1037 AM Flash Flood 1 S Picayune 30.52N 89.68W
06/16/2026 Pearl River MS Public
A social media post showed stalled cars at
the intersection of Memorial Boulevard and
Telly Road in Picayune.
&&
MEFFERPreliminary Local Storm Report
National Weather Service New Orleans LA
1046 AM CDT Tue Jun 16 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1022 AM Flash Flood 2 ENE Picayune 30.54N 89.65W
06/16/2026 Pearl River MS Dept of Highways
Water at least 1 foot deep on the I-59
interstate exit at Sycamore Road.
&&
MEFFERPreliminary Local Storm Report
National Weather Service New Orleans LA
1047 AM CDT Tue Jun 16 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1046 AM Flash Flood Picayune 30.53N 89.68W
06/16/2026 Pearl River MS Law Enforcement
Picayune Police department reported that
barricades were being placed at numerous
roads throughout the city due to flooding.
&&
MEFFERThe Hammond radar (KHDC), 46 km away, was scanning. The volume nearest the first event began at 18:11 UTC.
8 flash flood. Local standard time, as filed.
The intersection of Silas Schilling Road at Mt. Pisgah Road was flooded due to heavy rainfall.
White Hayes Creek Road near the intersection with Bennie King Road was flooded due to heavy rainfall.
Nobles Cemetery Road was flooded due to heavy rainfall.
Highway 436 in Franklinton was flooded due to heavy rainfall.
Water was surrounding some manufactured homes and flooded some agriculture structures.
Street flooding in the Parkwood Terrace neighborhood.
Some standing water on at the intersection of HWY 447 and HWY 63. Road is passable.
A vehicle was stalled in high water on a flooded Plank Road service road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Louisiana in 2026Every state in 2026This day in weather historyWarnings in Louisiana, June 2026
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: 1344791, 1344792, 1344793, 1344794, 1344795, 1344796, 1344797, 1344798.