Tropical Storm Bill expected to hit land by the afternoon . Storm 's maximum sustained winds near 50 mph . Voluntary evacuation urged in part of Highlands County , Florida , for flooding conditions . The storm 's center was about 1,320 miles ( 2,120 kilometers ) Tropical Storm Bill forecast to become a hurricane Monday .
Tropical Storm Bill expected to hit land by the afternoon . Storm 's maximum sustained winds near 50 mph . Voluntary evacuation urged in part of Highlands County , Florida , for flooding conditions . Tropical Storm Bill forecast to become a hurricane Monday .