 With most of its circulation over the western portion of Florida during its existence , Tropical Storm Marco produced 39 – 74 mph winds across western Florida . As it brushed the coastline , the storm developed strong convective rain bands , leading to peak sustained winds of 69 mph ( 112 km / h ) with gusts to 85 mph ( 137 km / h ) on the Sunshine Skyway Bridge ; the bridge was closed after gusts reached 70 mph ( 115 km / h ) . Squalls from the storm spawned four tornadoes in the state , one of which struck the city of Crystal River , destroying a mobile home and left 2 @,@ 000 people without power for about an hour . Storm damage left about 25 @,@ 000 customers across the state without power and about 40 families temporarily homeless . 
