Isaías reaches Category 1 and triggers Gulf Coast warnings

Isaías reached Category 1 during the night of Wednesday, October 7, with maximum sustained winds of 120 km/h over the Gulf of Mexico. The U.S. National Hurricane Center announced the change at 10:30 p.m. Central Time.

In Intermediate Advisory 6A, issued at 1:00 a.m. Thursday, the NHC said the system retained that intensity and had a central pressure of 981 millibars. Its center was about 285 kilometers northwest of Progreso, Mexico, moving east-northeast at 15 km/h.

The NHC upgraded the watch from Ocean Springs, Mississippi, to the Bay-Gulf county line in Florida to a hurricane warning. It also issued a storm-surge warning from the mouth of the Mississippi River to the Steinhatchee River.