The National Weather Service (NWS) said they received numerous reports of hail, some ranging from quarter up to tennis ball-size, as severe storms moved across the New Orleans metro area between 7 p.m. Sunday and 1 a.m. Monday.
"Conventional radar data from Slidell and Dual pol products from Lake Charles both indicated strong hail signatures," as storms moved across parts of Southeast Louisiana Sunday night, the NWS said.
Jefferson Parish was the hardest hit with numerous reports of large hail of ping pong (1.50" in diameter) to tennis ball-size (2.50" in diameter). Terrebonne and St. James parishes also reported large hail up to golfball-size.
The New Orleans area reported quarter-size hail in some areas with the hail covering the ground.
The hail storms were associated with a northward moving warm front with the storms elevated and occurring within an environment with weak instability and very cold temperatures aloft.
This warm front is expected to lift north into central Mississippi by Monday afternoon, leading to a more significant threat for severe storms across the region including tornadoes, damage winds and hail as a cold front approaches.