Upper level disturbances moving over a very warm and unstable airmass produced numerous reports of severe weather, as well as isolated flash flooding.

Hail in IBERVILLE, LOUISIANA
From 29-MAR-11 15:10:00 to 29-MAR-11 15:10:00 (CST-6)
Location: BAYOU SORREL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Additional reports of penny to quarter size hail were received from Bayou Sorrel.

Hail in IBERVILLE, LOUISIANA
From 29-MAR-11 15:10:00 to 29-MAR-11 15:10:00 (CST-6)
Location: BAYOU SORREL
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in ST. JAMES, LOUISIANA
From 29-MAR-11 15:25:00 to 29-MAR-11 15:25:00 (CST-6)
Location: LUTCHER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Broadcast media passed on a viewer report of at least quarter size hail with some larger hailstones mixed in.

Hail in TANGIPAHOA, LOUISIANA
From 29-MAR-11 16:19:00 to 29-MAR-11 16:19:00 (CST-6)
Location: AMITE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in EAST FELICIANA, LOUISIANA
From 29-MAR-11 16:30:00 to 29-MAR-11 16:30:00 (CST-6)
Location: CLINTON
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Photo received from a Baton Rouge television station of slightly larger than baseball size hail, measuring 3 inches in diameter, along Highway 63 southeast of Clinton.

Hail in EAST FELICIANA, LOUISIANA
From 29-MAR-11 16:40:00 to 29-MAR-11 16:40:00 (CST-6)
Location: BLUFF CREEK
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Photo received from Baton Rouge television station of golf ball size hail at Bluff Creek.

Hail in ST. CHARLES, LOUISIANA
From 29-MAR-11 17:15:00 to 29-MAR-11 17:15:00 (CST-6)
Location: LULING
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Emergency management received a report from the public of quarter size hail in Luling.

Hail in JEFFERSON, LOUISIANA
From 29-MAR-11 17:35:00 to 29-MAR-11 17:35:00 (CST-6)
Location: (MSY)MOISANT FLD NEW
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported quarter size hail just east of New Orleans International Airport.

Flash Flood in JEFFERSON, LOUISIANA
From 29-MAR-11 17:50:00 to 29-MAR-11 19:00:00 (CST-6)
Location: METAIRIE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported water approaching homes on Roosevelt Avenue south of the West Metairie Canal and the street was not passable. Widespread street flooding was also reported in the Airline Park subdivision.

Hail in JEFFERSON, LOUISIANA
From 29-MAR-11 18:15:00 to 29-MAR-11 18:15:00 (CST-6)
Location: HARVEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Jefferson Parish Emergency Manager reported quarter size hail at the intersection of Manhattan Blvd and the Westbank Expressway.

Hail in JEFFERSON, LOUISIANA
From 29-MAR-11 18:15:00 to 29-MAR-11 18:15:00 (CST-6)
Location: MARRERO
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported half dollar size hail in Marrero.

Thunderstorm Wind in JEFFERSON, LOUISIANA
From 29-MAR-11 18:20:00 to 29-MAR-11 18:20:00 (CST-6)
Location: TERRYTOWN
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer in Terrytown measured a 60 mph wind gust.

Thunderstorm Wind in JEFFERSON, LOUISIANA
From 29-MAR-11 18:20:00 to 29-MAR-11 18:20:00 (CST-6)
Location: TERRYTOWN
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

A tree was blown down onto a house on Hero Drive in Harvey.

Thunderstorm Wind in PLAQUEMINES, LOUISIANA
From 29-MAR-11 18:27:00 to 29-MAR-11 18:27:00 (CST-6)
Location: (NBG)NAS NEW ORLEANS
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in JEFFERSON, LOUISIANA
From 29-MAR-11 18:30:00 to 29-MAR-11 18:30:00 (CST-6)
Location: HARVEY
Magnitude: 87.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The greatest concentration of damage was in Gretna on Manhattan Blvd, where nearly 1.8 miles of hail and wind damage occurred. Over a mile of power lines were either snapped or pushed over by these winds. An awning was blown down at the Manhattan Place Shopping Center, which damaged several cars in the parking lot.

Thunderstorm Wind in PLAQUEMINES, LOUISIANA
From 29-MAR-11 18:32:00 to 29-MAR-11 18:32:00 (CST-6)
Location: SONE CHASSE
Magnitude: 87.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A commercial building along Avenue A and Highway 23 was damaged. The front door was ripped off. Five employees toook shelter in a closet during the event.

Thunderstorm Wind in PLAQUEMINES, LOUISIANA
From 29-MAR-11 18:32:00 to 29-MAR-11 18:32:00 (CST-6)
Location: PORT NICKEL
Magnitude: 87.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Plaquemines Parish Government office measured a wind gust of 100 mph at the end of Avenue G and Main Street near Plaquemines Pride.

Thunderstorm Wind in PLAQUEMINES, LOUISIANA
From 29-MAR-11 18:32:00 to 29-MAR-11 18:32:00 (CST-6)
Location: SONE CHASSE
Magnitude: 87.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A government building was damaged at 8056 Highway 23.

Flash Flood in PLAQUEMINES, LOUISIANA
From 29-MAR-11 18:40:00 to 29-MAR-11 20:00:00 (CST-6)
Location: BELLE CHASSE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Eight inches of water was covering Highway 23 south of Belle Chasse. Moderate to heavy street flooding occurred across northern Plaquemines Parish.

Flash Flood in JEFFERSON, LOUISIANA
From 29-MAR-11 18:45:00 to 29-MAR-11 20:00:00 (CST-6)
Location: HARVEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Numerous streets were flooded around Harvey along Manhattan and Lapalco Boulevards. Two to three feet of water was reported on Gretna Blvd. Water was approaching, but not moving into, homes in this area.

Hail in ST. BERNARD, LOUISIANA
From 29-MAR-11 18:45:00 to 29-MAR-11 18:45:00 (CST-6)
Location: CHALMETTE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Received a public report of quarter size hail in Chalmette.

Hail in POINTE COUPEE, LOUISIANA
From 29-MAR-11 18:52:00 to 29-MAR-11 18:52:00 (CST-6)
Location: LETTSWORTH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail to the size of nickels and quarters occurred south of Lettsworth.

Flash Flood in JEFFERSON, LOUISIANA
From 29-MAR-11 18:55:00 to 29-MAR-11 20:00:00 (CST-6)
Location: GOULDSBORO
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Jefferson Parish Emergency Management reported water in 25 apartments in the 1600 block of Carol Sue in Terrytown.

Hail in ST. BERNARD, LOUISIANA
From 29-MAR-11 19:10:00 to 29-MAR-11 19:10:00 (CST-6)
Location: DELACROIX
Magnitude: 1.75 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

The public reported golf ball size hail and broken windows in the Delacroix area.

Hail in TANGIPAHOA, LOUISIANA
From 29-MAR-11 21:29:00 to 29-MAR-11 21:29:00 (CST-6)
Location: AMITE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported quarter size hail in the city of Amite.

Funnel Cloud in ST. BERNARD, LOUISIANA
From 29-MAR-11 22:52:00 to 29-MAR-11 22:52:00 (CST-6)
Location: DELACROIX
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A funnel cloud was reported near Delacroix.

Thunderstorm Wind in JEFFERSON, LOUISIANA
From 30-MAR-11 06:30:00 to 30-MAR-11 06:30:00 (CST-6)
Location: GRAND ISLE
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Power was out on Grand Isle. Transformers blew out and power lines were damaged by wind.

Thunderstorm Wind in ST. JOHN THE BAPTIST, LOUISIANA
From 29-MAR-11 15:57:00 to 29-MAR-11 15:57:00 (CST-6)
Location: GARYVILLE
Magnitude: 61.00 MG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A gas station awning was heavily damaged and several power poles were blown down along Airline Highway. A nearby refinery recorded wind gusts of 70 mph before power failed.

Tornado in ST. BERNARD, LOUISIANA
From 29-MAR-11 19:02:00 to 29-MAR-11 19:06:00 (CST-6)
Location: DELACROIX
Tornado F-scale: EF1
Property damage: 200.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The survey team found tornado damage consistent with estimated winds around 105 mph. The vacant 3 story Delacroix Government Complex lost its top two floors, and suffered a collapse of north and east facing brick veneer. Five unstrapped RV trailers were flipped. Two trailers rolled for 45 yards and were totally destroyed. The tornado touched down on Bayou Terre Au Beoufs by the government complex, crossed a marsh field, and recrossed Highway 300 where 4 of the 5 trailers were affected, then lifted over the bayou. Length 0.6 miles, width 25 yards.

Hail in ST. JOHN THE BAPTIST, LOUISIANA
From 29-MAR-11 16:00:00 to 29-MAR-11 16:00:00 (CST-6)
Location: LA PLACE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of hail were received ranging from penny and nickel size to golf ball size was reported from about 3 miles west of Laplace to the west and north portion of Laplace near the Interstate 10-Interstate 55 interchange.

Tornado in ST. CHARLES, LOUISIANA
From 29-MAR-11 16:17:00 to 29-MAR-11 16:20:00 (CST-6)
Location: GYPSY
Tornado F-scale: EF0
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A weak EF0 tornado touched down with estimated winds of 65 mph. Tree limb damage was observed and a vehicle had its camper top torn off.

Tornado in ST. JOHN THE BAPTIST, LOUISIANA
From 29-MAR-11 16:15:00 to 29-MAR-11 16:17:00 (CST-6)
Location: TIGERVILLE
Tornado F-scale: EF0
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The survey team found damage in the Edgard area consistent with a weak EF0 tornado and estimated winds of 65 mph. Large limbs were down, the corner of a roof lost shingles. Maximum path width of 50 yards, path length 250 yards.

Hail in JEFFERSON, LOUISIANA
From 29-MAR-11 18:20:00 to 29-MAR-11 18:20:00 (CST-6)
Location: TERRYTOWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The Cooperative Observer in Terrytown reported quarter size hail covering his yard.

Thunderstorm Wind in JEFFERSON, LOUISIANA
From 29-MAR-11 18:20:00 to 29-MAR-11 18:20:00 (CST-6)
Location: TERRYTOWN
Magnitude: 61.00 EG
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Fifty power poles were snapped along Manhattan Blvd. Minor structural damage was observed on numerous buildings. The Walmart on Manhattan Blvd had major roof damage.

Thunderstorm Wind in PLAQUEMINES, LOUISIANA
From 29-MAR-11 18:32:00 to 29-MAR-11 18:32:00 (CST-6)
Location: BELLE CHASSE
Magnitude: 87.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Damage in Belle Chasse was in line with the storm in the Gretna area. Trees and power lines were blown down and structures received minor damage. A NWS Storm Survey showed straight line winds of 100 mph and were associated with a strong inflow notch radar signature.

Hail in PLAQUEMINES, LOUISIANA
From 29-MAR-11 18:30:00 to 29-MAR-11 18:30:00 (CST-6)
Location: SONE CHASSE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Golf ball size hail was reported along Highway 406 and Highway 23.

Hail in POINTE COUPEE, LOUISIANA
From 30-MAR-11 04:56:00 to 30-MAR-11 04:56:00 (CST-6)
Location: FORDOCHE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A Baton Rouge television station relayed a public report of quarter size hail in Fordoche.