Updated

Tropical storm warnings are up all along the South Carolina coast as a tropical depression moves toward shore.

The National Hurricane Center says there is a small window Saturday for the depression to get winds of at least 39 mph and become Tropical Storm Bonnie. That is what prompted the warnings, first issued Friday.

Forecasters say several inches of rain could fall along the South Carolina and North Carolina coasts as the low pressure system nears shore late Saturday, then moves northeast along the coast over the long Memorial Day weekend.

No evacuations have been ordered. Most beaches along the coast remain open, with lifeguards warning swimmers to be careful of rip currents that could pull them out to deeper water.