Eight tornadoes confirmed in Louisiana and Mississippi from Post-Tropical Cyclone Arthur storms

NEW ORLEANS (WVUE) – The National Weather Service has confirmed eight tornadoes touched down across Louisiana and Mississippi on June 18th, 2026, with damage surveys revealing significant impacts to homes, businesses, and infrastructure.

The survey work continues on several areas, including Eden Isle, where meteorologists are analyzing whether additional weak tornadoes occurred within widespread wind damage.

The NWS has asked for patience as crews complete their analysis, with the next update expected Monday, June 22.

A busy morning of severe weather

The tornado activity began early Thursday morning around 2:49 a.m. and continued through the morning hours, with the last confirmed tornado occurring around 8:12 a.m.

The storms primarily impacted the greater New Orleans area, including parts of Jefferson Parish, Orleans Parish, and St. Tammany Parish in Louisiana, as well as Hancock and Harrison counties in Mississippi.

The damage: eight confirmed tornadoes

Houma area hit hardest

Four of the eight confirmed tornadoes touched down in the Houma area, with a fourth nearby.

The most significant damage in Houma came from an EF-1 tornado that tracked through the city around 3:47 a.m., producing winds up to 95 mph.

This tornado damaged the Lynn Park Shopping Center, where nearly every window was damaged, and interior walls partially collapsed. Four homes sustained partial to significant roof loss, and one home had an exterior wall collapse.

Another EF-1 tornado in the same area tossed a truck 30 feet and caused significant damage. Multiple trees were snapped and uprooted, with several homes sustaining partial roof loss, and at least one carport collapsed.

An EF-1 tornado causes significant roof damage to two homes on Crozier Drive, and at least one exterior wall collapsed on each.

An EF-0 tornado also impacted the McCord area of Houma, damaging trees, several homes, and electrical poles.

Long-track tornado from St. Tammany Parish to Mississippi

The most significant tornado of the day was an EF-1 that traveled 12.42 miles from Treasure Isle in St. Tammany Parish to rural Hancock County, Mississippi. With maximum winds of 105 mph and a width of up to 300 yards, this tornado caused extensive damage across its path.

The tornado flipped a large boat near Treasure Isle and progressed northeast, removing shingles from homes and snapping trees along Bluegill Drive.

As it moved into Avery Estates, the tornado grew in size and strengthened, uprooting numerous trees along U.S. Highway 190 and damaging several outbuildings. A manufactured home had most of its roof removed and was shifted significantly off its foundation.

The tornado maintained strength as it moved over the Pearl River Basin before weakening as it approached Hancock County, where ground survey teams documented widespread tree damage on rural roads.

Additional tornadoes

An EF-1 tornado tracked 7.26 miles from Bridge City through New Orleans to the University of New Orleans area around 5:43 a.m., producing winds up to 95 mph. Damage was primarily tree damage and minor building damage across the city.

A brief EF-1 tornado touched down north of Highway 90 in Avondale, injuring two people. The tornado tracked northeast with home damage and snapped tree branches. One home sustained damage when another mobile home rolled into it. The wind speeds were estimated to be 90 mph.

An EF-1 tornado also tracked across Hancock and Harrison counties in Mississippi, with widespread tree damage, including several large trees uprooted and snapped. Minor damage occurred to several properties along the 6.38-mile path.

No Fatalities Reported

Despite the significant damage from eight tornadoes, no fatalities were reported. However, two injuries were reported in the Avondale area.

All information in this report is preliminary and subject to change pending final review and publication in NWS Storm Data.

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