Severe Weather and Heavy Rainfall Threat: May 27, 2025

Here is an update concerning the severe weather and heavy rainfall threat:

Overview:

WHAT: MARGINAL RISK of Severe Weather and MARGINAL RISK of Heavy Rainfall

WHEN: Wednesday and Wednesday night; Thursday and Thursday night for both marginal risk areas

WHERE: For Wednesday – All of SE Louisiana and Coastal MS for the severe and heavy rainfall threat

For Thursday – All of SE Louisiana and Coastal MS for the severe threat and only areas north of I-10 for the heavy rainfall threat

CONFIDENCE: We are confident there will be thunderstorms across the area. We have little confidence any of them will become severe.

Impacts: The main threats associated with any severe storms will be:

Damaging Winds: Wind gusts greater than 60 mph are possible.

Large Hail: Large hail of up to 1 inches in diameter will be possible.

Rainfall: In addition to the severe weather threat, rainfall of 1 to 3 inches is forecast. Runoff will lead to ponding of water in low lying areas and areas of poor drainage.