A strong upper level trough moving across the region brought three rounds of severe thunderstorms with large hail and damaging winds to southwest Louisiana. The first round consisted of one supercell thunderstorm that moved across Acadia and St. Landry Parishes during the early evening hours on March 29, while the second round included numerous severe thunderstorms across much of southern Louisiana later in the day. The third and final round occurred during the early morning hours on March 30, when numerous elevated supercells developed behind a cold front and moved across southwest Louisiana. Hail fell three separate times at the NWS office in Lake Charles.

Hail in ST. LANDRY, LOUISIANA
From 29-MAR-11 18:00:00 to 29-MAR-11 18:00:00 (CST-6)
Location: OPELOUSAS
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ST. LANDRY, LOUISIANA
From 29-MAR-11 18:03:00 to 29-MAR-11 18:03:00 (CST-6)
Location: PORT BARRE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CALCASIEU, LOUISIANA
From 30-MAR-11 03:59:00 to 30-MAR-11 03:59:00 (CST-6)
Location: VINCENT LNDG
Magnitude: 61.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS storm survey discovered a large downburst struck areas south of the LNG Plant in southwest Lake Charles. A few homes along Airhart Road suffered minor roof damage, with a couple of fences pushed over and a boat shed blown 50 yards southeast and destroyed. Winds were measured up to 95 mph at the LNG Plant, but damage in the populated areas to the south of the plant suggest winds were in the 60-70 mph range.

Hail in CALCASIEU, LOUISIANA
From 30-MAR-11 04:07:00 to 30-MAR-11 04:07:00 (CST-6)
Location: VINCENT LNDG
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mariner

The Hercules tugboat at the Trunkline LNG plant in southwest Lake Charles reported golfball size hail.

Thunderstorm Wind in CALCASIEU, LOUISIANA
From 30-MAR-11 04:07:00 to 30-MAR-11 04:07:00 (CST-6)
Location: VINCENT LNDG
Magnitude: 83.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mariner

The Hercules tugboat at the Trunkline LNG plant in southwest Lake Charles reported a wind gust of 95 mph.

Hail in EVANGELINE, LOUISIANA
From 30-MAR-11 04:10:00 to 30-MAR-11 04:10:00 (CST-6)
Location: MAMOU
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CALCASIEU, LOUISIANA
From 30-MAR-11 04:00:00 to 30-MAR-11 04:00:00 (CST-6)
Location: (LCH)LK CHARLES MUNI
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

NWS Employee estimated quarter size hail near Nelson Road.

Hail in CALCASIEU, LOUISIANA
From 30-MAR-11 04:05:00 to 30-MAR-11 04:05:00 (CST-6)
Location: VINCENT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Nickel size hail reported in Carlyss.

Hail in EVANGELINE, LOUISIANA
From 30-MAR-11 04:10:00 to 30-MAR-11 04:10:00 (CST-6)
Location: REDDELL
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter to half dollar size hail between Mamou and Vidrine.

Hail in CALCASIEU, LOUISIANA
From 30-MAR-11 04:11:00 to 30-MAR-11 04:11:00 (CST-6)
Location: (LCH)LK CHARLES MUNI
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Ping pong ball size hail fell at the NWS office.

Hail in CALCASIEU, LOUISIANA
From 30-MAR-11 04:30:00 to 30-MAR-11 04:30:00 (CST-6)
Location: LAKE CHARLES
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

CoCoRaHS observer reported half dollar size hail lasted for 2 minutes.

Hail in LAFAYETTE, LOUISIANA
From 30-MAR-11 04:30:00 to 30-MAR-11 04:30:00 (CST-6)
Location: CARENCRO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ST. LANDRY, LOUISIANA
From 30-MAR-11 04:35:00 to 30-MAR-11 04:35:00 (CST-6)
Location: ARNAUDVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CALCASIEU, LOUISIANA
From 29-MAR-11 22:00:00 to 29-MAR-11 22:00:00 (CST-6)
Location: (LCH)LK CHARLES MUNI
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Hail in ALLEN, LOUISIANA
From 29-MAR-11 23:54:00 to 29-MAR-11 23:54:00 (CST-6)
Location: INDIAN VLG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ST. LANDRY, LOUISIANA
From 30-MAR-11 04:30:00 to 30-MAR-11 04:30:00 (CST-6)
Location: GRAND COTEAU
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

CoCoRaHS observer reported ping pong ball size hail lasted for 7 minutes. Hail covered the ground and piled up along fences.

Hail in ST. LANDRY, LOUISIANA
From 30-MAR-11 04:48:00 to 30-MAR-11 04:48:00 (CST-6)
Location: KROTZ SPGS
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported via Facebook that egg size hail fell along the Atchafalaya River south of Krotz Springs.

Hail in VERMILION, LOUISIANA
From 30-MAR-11 04:55:00 to 30-MAR-11 04:55:00 (CST-6)
Location: GUEYDAN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in ALLEN, LOUISIANA
From 29-MAR-11 21:16:00 to 29-MAR-11 21:16:00 (CST-6)
Location: INDIAN VLG
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS Storm Survey found a downburst struck along Tram Martin Road southwest of Leblanc. The sheet metal roof and attached porch of one home near the center of the downburst was blown off to the northwest and landed in the backyard. A few trees were blown down in an outward pattern to the southwest and northeast of the home. Winds were estimated at 70 mph.

Thunderstorm Wind in ST. LANDRY, LOUISIANA
From 29-MAR-11 18:03:00 to 29-MAR-11 18:08:00 (CST-6)
Location: OPELOUSAS
Magnitude: 83.00 EG
Property damage: 250.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS storm survey discovered an intense microburst affected a 2 mile long by 1/2 mile wide area along Highway 742 east of Opelousas. Winds were estimated from 85-95 mph. One large metal barn was destroyed and two smaller barns were demolished. Several other outbuildings were destroyed with debris blown hundreds of yards. Two campers were flipped over and 1 power pole was snapped. Several hardwood and softwood trees were snapped at the trunk. One mobile home suffered considerable roof damage, while a few brick homes lost a few shingles.

Hail in ACADIA, LOUISIANA
From 29-MAR-11 21:27:00 to 29-MAR-11 21:27:00 (CST-6)
Location: MAXIE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter to golfball size hail reported around 6 miles east of Iota.

Thunderstorm Wind in BEAUREGARD, LOUISIANA
From 29-MAR-11 20:53:00 to 29-MAR-11 20:53:00 (CST-6)
Location: RAGLEY
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Trees were blown down and hail of unknown size was reported.

Thunderstorm Wind in CALCASIEU, LOUISIANA
From 30-MAR-11 04:00:00 to 30-MAR-11 04:00:00 (CST-6)
Location: (LCH)LK CHARLES MUNI
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Newspaper

A large pine tree fell onto a mobile home on Speck Drive causing considerable damage to half of the roof.

Hail in CALCASIEU, LOUISIANA
From 29-MAR-11 21:45:00 to 29-MAR-11 21:45:00 (CST-6)
Location: LAKE CHARLES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CALCASIEU, LOUISIANA
From 29-MAR-11 21:44:00 to 29-MAR-11 21:44:00 (CST-6)
Location: (LCH)LK CHARLES MUNI
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Nickel to quarter size hail observed outside NWS office.

Hail in CALCASIEU, LOUISIANA
From 30-MAR-11 04:00:00 to 30-MAR-11 04:00:00 (CST-6)
Location: (LCH)LK CHARLES MUNI
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS