Dear Babtsiu,
When I was in New Orleans, I found out that their patron, Our Lady of Prompt Succour (also patron of Louisiana) is invoked against hurricanes and storms.
She was invoked against a fire that turned away from the Ursuline Convent where the image was formerly kept and then helped achieve a swift victory in the Battle of New Orleans.
When people there here of an impending hurricane, they often go straight to St Louis' Cathedral or to the Ursuline Academy to invoke her protection, saying: Our Lady of Prompt Succour, hasten to help us!
I"ve my own little shrine of OLPS at home and I now feel like real Southerner from N'Awlins . . .

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Thank you, Mother of Perpetual Succour, for protecting your people against the storms!
Alex