The areas affected include... Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm... Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM... Terrebonne Bay...
At 526 AM CDT, Doppler radar indicated a cluster of strong thunderstorms, capable of producing winds to around 30 knots and weak waterspouts. This cluster of thunderstorms is generally located over Timbalier Island, moving northeast at 10 knots.
Mariners can expect widespread gusty winds to around 30 knots, higher waves and dangerous lightning strikes. Boaters should seek safe harbor immediately until this activity passes.
Brief, weak waterspouts are possible with this activity. Remain on alert in case warnings are issued for waterspout development.