Tornadoes and Flash Flooding in Louisiana, June 17 to 20, 2026

An EF-0 tornado touched down near Bayou la Cache, east of Chauvin, LA in Terrebonne Parish and tracked northeast toward Montegut, LA. High resolution satellite imagery depicted a defined swath of tree damage beginning over inaccessible areas which aligned with a tornado debris signature on Climavision V014. The damage path grew to a maximum width of 200 yards and peaked in intensity over inaccessible forest west of Blue Jay St as it enroached on neighborhoods near Crochetville Rd. The tornado gradually weakened and decreased in size as it moved over southern parts of Montegut, near Crochetville Rd where mainly minor tree damage was noted. It is estimated that this tornado dissipated near Willow Aly and Bayou Terrebonne.

A defined damage path in inaccessible marsh areas due to a short-lived tornado was identified via high resolution satellite imagery. The existence of this tornado was corroborated by a brief tornado debris signature on V014 Climavision radar. Lafourche Parish emergency management relayed that a tree was downed on a private road where this tornado crossed and is the basis for the EF-0 rating of this tornado.

A well-defined damage path of an EF-0 tornado was identified on high-resolution satellite imagery over rural, inaccessible parts of southeast St. Charles Parish. The tornado touched down near Bayou des Allemands and tracked north-northwest over rural, inaccessible marshland. While the majority of damage along this path was marsh vegetation, a narrow swath of trees were evidently damaged/displaced which is the basis for its EF-0 rating. The tornado continued north-northwest with the narrow damage path becoming less defined with time. The tornado dissipated east of Bayou Gauche after being on the ground for over 3 miles.

The damage path of an EF-0 tornado was identified on medium resolution satellite imagery over lower Terrebonne Parish, near Jug Lake. This damage path is closely aligned with a strong tornado vortex signature that was on KHDC radar, but no debris signature was ever evident. Swaths of damage to marsh vegetation were most evident throughout the track. Additional pictures of trees damaged along the path provided by a private landowner were the basis for the EF-0 rating.

An EF-1 tornado touched down over inaccessible areas west of Bayou Dularge and tracked northeast toward Crozier Drive. Predominantly minor to moderate patches of tree damage were visible on high resolution satellite imagery along its path which were collocated with a tornado debris signature on Climavision radar V014. Trees were more evidently displaced and damaged as the tornado exited the inaccessible marsh and forested areas and moved over Crozier Drive. A NWS survey team observed two homes on Crozier Drive that had significant roof loss and at least one exterior wall collapsed for both homes. The tornado continued northeast across Bayou Dularge Rd and into more inaccessible marsh and forest vegetation where more minor damage was evident on satellite imagery. The end point of this tornado is estimated and it's possible it extended further northeast though no conclusive evidence of damage was identified.

A NWS survey team concluded an EF-1 tornado tracked from Evelyn Ave towards Woodhaven Dr and Roberta Grove Blvd. Several businesses in the Lynn Park Shopping Center (at the corner of Prospect Ave and Grand Caillou Rd) sustained damage to almost every window and had partially collapsed interior walls and their roof. HVAC equipment on the roof was thrown northward onto the ground from these businesses. 4 homes had partial to significant roof loss. One home had an exterior wall collapsed. Several carports were significantly damaged.

An EF-0 tornado touched down over inaccessible areas of Terrebonne Parish, southwest of Houma, LA. A weak path of damage to marsh vegetation and trees was observed on high resolution satellite imagery which was collocated with a large, vertically and temporally continuous tornado debris signature on Climavision V014 radar. The tornado apparently lifted prior to crossing Bayou Dularge Rd given that no substantive damage was observed by the ground survey team in the area despite the weakening tornado debris signature still being present on radar.

Approximately half a foot of water on Highway 24 north of US Highway 90 in Gray. A car is stalled in the water.

A NWS survey team concluded an EF-0 tornado produced damage to trees, several homes, and several electrical wooden poles in the McCord area of Houma. Time estimated by radar.

A NWS survey team concluded that an EF-1 tornado tracked from the corner of Afton St and Richmond Ave towards Dixie Ave in Houma. A truck was tossed 30 feet and sustained significant damage. Multiple snapped and uprooted trees were observed. Several homes sustained a partial loss of their roofs. One home had a collapsed carport. Time estimated by radar.

An EF-0 tornado touched down near Megan Drive, off of Coteau Rd, in northeast Terrebonne Parish. This tornado caused predominantly tree damage with some additional visible roof and siding damage to a couple homes. This tornado exited Terrebonne Parish, entering Lafourche Parish at Bayou Blue Road near Peaceful Lane.

Tornado that began in Terrebonne Parish entered Lafourche Parish at Bayou Blue Road near Peaceful Lane. Trees were visibly damage/displaced near Bayou Blue Rd on high resolution satellite imagery. The tornado continued into inaccessible marsh areas northeast of Bayou Blue Rd. A tornado debris signature was evident on Climavision Radar V014 through the duration of this tornado with the TDS dissipating near Hollywood Canal.

Video shows a home flooded with ankle deep water.

Video on social media shows extensive street and yard flooding near Honduras Elementary School in Houma.

Video of homes flooding in the Bayou Cane area.

Streets and yards flooded on Oakshire Dr. in Houma.

Howard Avenue in Houma is covered by water.

Photo on social media shows streets and yards flooded on Hall St. in Houma.

Streets flooding up to 6 inches deep in St. Rose.

NWS ground survey in addition to high resolution satellite analysis confirmed an EF-0 tornado tracked from northeast of Bayou Gauche to west of Luling, LA in St. Charles Parish. The tornado damaged a patch of trees on high resolution satellite imagery and additional damage to marsh vegetation was evident with brief, weak tornado debris signatures also present on KHDC during this time. The tornado continued bending northward in direction as it approached the Blouin Canal with a larger, well-defined tornado debris signature becoming more evident on approach. A large tree was visibly damaged/displaced on high res satellite imagery in addition to other minor tree damage noted near Santa Cruz Ct as the tornado began to weaken and lift. The only minor tree damage was noted by the ground surveyor in the location.

NWS ground survey confirmed an EF-1 tornado impacted areas near Bayou Cane and moved northeast across US Hwy 190 west of Lacombe, LA in St. Tammany Parish. The tornado touched down near the shore of Lake Pontchartrain or came ashore as a tornadic waterspout with evident damage to marsh vegetation and trees per high resolution satellite imagery. The tornado was at peak intensity west of Lemieux Blvd where ground surveyors observed a few snapped trees on Cane Bayou Access Trail. Additional tree damage occurred on private property including several uprooted trees and a few snapped trunks as well as visible damage to a shed. The tornado uprooted and partially snapped trees as it crossed the Tammany Trace Bike Trail. The tornado began to evidently weaken as it approached and crossed US Hwy 190 causing only minor tree damage north of the highway. The tornado is estimated to have lifted near Azalea St and Cane Bayou Ln.

As the Bayou Gauche-Luling Tornado occluded and weakened, it quickly handed off to another EF-0 tornado that quickly strengthened and caused a defined damaged swath of minor tree damage over largely inaccessible areas northeast of Destrehan, near Interstate 310. The tornado evidently weakened and lifted before reaching Airline Hwy. This damage path aligned closely with a strong tornado vortex signature on TMSY and evident weak debris signature on KHDC.

An EF-1 tornado tracked across parts of St. Charles and Jefferson Parishes, affecting the community of Avondale, LA. This tornado began over the Salvador Wildlife Management Area as evidenced by a well-defined 15-20 yard wide path of damage to marsh vegetation oriented southwest to northeast that was collocated with an intensifying area of rotation on both TMSY and KHDC. This damage path gradually broadened and fluctuated in intensity causing minor damage to trees as it traveled over uninhabited and inaccessible marsh areas. The tornado damage path evidently became larger and more noticeable again near Bayou Verret. A clear path of tree damage was evident on high resolution satellite imagery spanning to approximately 300 yards wide with numerous trees damaged or displaced as the tornado exited St Charles Parish and crossed into Jefferson Parish 1.35 miles south of Highway 90 along Bayou Verret.

Extensive street flooding that is curb deep on many streets in the city of Kenner.

An EF-1 tornado entered Jefferson Parish from St. Charles Parish 1.35 miles south of Highway 90 near over inaccessible areas to ground survey team near the levees along Bayou Verret. A clear path of tree damage was evident on high resolution satellite imagery spanning to at least 250 yards wide with numerous trees displaced. The damage path within this inaccessible area became weaker and less apparent as the tornado approached US Hwy 90. The tornado was at EF-0 intensity as it crossed US Hwy 90 into Avondale. As it tracked northeast, the tornado caused light home damage and snapped tree branches. The tornado restrengthened to low-end EF-1 intensity at George Street, rolling a single-wide manufactured home into another home which was the cause of the most significant structural damage. The manufactured home was thrown to the northeast with the frame being well bent. 2 people were injured as a result. Additional home damage was also found on Defourneaux Ln as the tornado began to weaken again. It's estimated that the tornado lifted after crossing Restlawn Park Cemetery, near Center Street.

Video of street flooding on Barton Avenue in Luling.

An EF1 tornado touched down on the east bank of the MS River snapping and uprooting trees and breaking power poles near Jefferson Highway and Airline Highway. Empty rail cars were also derailed just to the south of Airline Highway. This tornado exited Jefferson Parish Parish, entering Orleans Parish near the intersection of Bamboo Road and Palmetto Street.

This tornado that began in Jefferson Parish Parish entered Orleans Parish near the intersection of Bamboo Road and Palmetto Street. The tornado moved northeast to the University of New Orleans. Damage across the city was mostly tree damage and minor building damage.

A brief EF0 tornado touched down in Eden Isle, LA and moved east. Widespread branches and tree debris was found in Eden Isle along with a few houses with minor damage. One house had a failure at the garage where the wind looks to have been pushed into the garage. The tornado damaged businesses right near I-10 as it crossed over with a few more homes damaged and trees down in Lakeshore Village. The widespread light damage across Eden Isle did make this a difficult track, especially track width, to find. The additional damage was likely inflow from straight line winds and/or debris that was swirling out of the tornado.

NWS ground survey confirmed an EF-1 tornado with maximum sustained winds of 105 mph. The tornado began near or before moving into Treasure Isle where it flipped a large boat on its side. Additional visible damage to homes and lofting of outdoor fixtures was noted as the tornado moved into Martin Drive. The tornado reached EF-1 intensity near Bluegill Drive where it removed shingles off of homes, snapped a few trees, and collapsed garage door structures and blew out a wall or two as a result in two different homes. A defined damage path was observed on LA Hwy 433 and then crossed into inaccesible marsh areas. A weak tornado debris signature was evident on KHDC and is the basis for connecting this damage to Avery Estates. The tornado continued northeast into Avery Estates where minor metal roof damage and tree damage was noted on Avery Drive and Smokey Hollow Drive. The tornado evidently strengthened and grew in size to around 300 yards in width as it moved just south of the northern part of Avery Drive and into US Hwy 190 where numerous trees were uprooted or snapped. Several outbuildings were damaged and tension cables on a cell tower were snapped. It's possible the tornado slowed in this area as it pivoted and turned more to the east per KHDC radar imagery. Along US Hwy 190 a manufactured home had most of its roof removed and it was shifted significantly off its foundation. The tornado then moved into Pearl River Basin, inaccessible to ground survey. The tornado evidently maintained strength or even strengthened further over this area, evidenced by the deepening of a tornado debris signature lofted over 5000 feet. The tornado exited St. Tammany Parish, entering Hancock County in Mississippi north of the town of Pearlington.

Reports of several cars stalled due to flooding near the intersection of West Esplanade and Loyola.

Gause Boulevard in Slidell impassable due to flooding.

Water was 1 to 2 feet deep on Airport Road in Slidell.

Picture on social media showed water in cars parked along Brownswitch Road in Slidell.

Significant flooding in Crossgates neighborhood in Slidell. Water encroaching on homes.

A picture on social media showed powerlines downed by thunderstorm winds along Highway 434.

Tree fell on a car on Hwy 21 and Fairgrounds, in Bush.

Video showed water encroaching on a home.

Picture of entire yard covered with water 1-2 feet in depth. Car appears to be inundated.

South Perimeter Road and entrance to Veterans Cemetery covered by unknown amount of water.

Four families near Lettsworth had to be evacuated from their homes after water entered their home. Water depth reached to about 8 inches inside of the homes.

An EF0 tornado with winds of 85 MPH tracked north to south across Arabi, LA in St. Bernard Parish. This was confirmed via eyewitness videos, along with debris thrown to the SE and convergent debris in that direction. Almost all of the damage was shingles off well built homes, fence damage and large branches down. Three houses had a good part of their roof removed. Two were older houses, one built in the 50s. One house had a car port attached to the roof which is where the failure occurred. The third was abandoned and neighbors confirmed it also had extensive termite damage. That and rot was observed on the roof. Given that well built homes had minor damage and the damage on the three houses were from older roofs, the rating is an 85 MPH EF0.

Broadcast media reported Loyola Drive in Kenner is flooded.

Emergency Manager reports dozens of roads closed and impassable across the parish, including Destrehan. Some water was also approaching a few homes.

Report of flooded roads in Houma.