MIAMI, Oct 6, (AP): A storm system that was brewing in the Gulf of Mexico strengthened into Tropical Storm Milton on Saturday and forecasters warned it could intensify into a hurricane and slam into the west coast of Florida later this week.

Tropical Storm Milton was about 365 miles (585 kilometers) west-northwest of Progreso, Mexico, and about 855 miles (1,375 kilometers) west-southwest of Tampa, Florida, with maximum sustained winds of 45 mph (75 kph) while heading north-northeast at 4 mph (6 kph), the National Hurricane Center in Miami said early Sunday.

“Milton moving slowly but expected to strengthen rapidly,” the center said, noting a “risk of life-threatening impacts increasing for portions of the Florida west coast.”

Florida Gov. Ron DeSantis declared a state of emergency in 35 counties ahead of the storm’s potential landfall. Since many of those counties are still recovering from Hurricane Helene, DeSantis asked the Florida Division of Emergency Management and the Florida Department of Transportation to coordinate all available resources and personnel to supplement local communities as they expedite debris removal.

Though no coastal watches or warnings were in effect, the hurricane center said the Florida Peninsula, the Florida Keys, Mexico’s Yucatan peninsula and the northwestern Bahamas should monitor the system’s progress.

The storm is forecast to strengthen and bring the risk of life-threatening impacts to parts of Florida, with hurricane and storm-surge watches likely in effect from Sunday. Parts of the state are expected to have heavy rainfall beginning that day, threatening flash, urban, and areal flooding, along with some river flooding.

“There is an increasing risk of life-threatening storm surge and wind impacts for portions of the west coast of the Florida Peninsula beginning late Tuesday or Wednesday. Residents in these areas should ensure they have their hurricane plan in place, follow any advice given by local officials, and check back for updates to the forecast,” the centre said.