"Hurricane Irma dropped to a Category 1 storm early Monday after it tore through southwest Florida and left more than 4 million customers without power.
Irma was downgraded as it moved over the western Florida peninsula, the National Hurricane Center said. By 5 a.m. ET, it had sustained winds of 75 mph with its center 60 miles north of Tampa.
Despite its weakening as it passes over land, Irma remains a monster pushing strong winds and flooding in the Southeast, forecasters warned."