(Richmond, Va.) — A number of dangerous storms – hurricanes, tropical storms and a typhoon — are on the move and threatening life and property in both the Atlantic and Pacific oceans.

The National Hurricane Center has issued advisories for the Atlantic on Hurricane Florence, and two tropical storms, Helene and Isaac. But immediate attention is focused on Florence, which is expected to become a “major hurricane” today as it continues to approach the southeastern U.S. East Coast. In its 11 p.m. EDT advisory, the National Hurricane Center said “a rapid phase of intensification” is expected to continue, with the likelihood that this will become a Category Four hurricane.

Florence is expected to travel between Bermuda and the Bahamas on Tuesday and Wednesday before approaching the southeastern U.S. coast on Thursday, possibly making landfall around North Carolina’s Outer Banks. That could bring high winds and flooding to Virginia on Friday. Almost all computer models now have Florence coming ashore instead of staying out to sea.

The Miami-based weather center says Florence’s maximum sustained winds are estimated to be 90 mph (150 kph). The storm is centered about 685 miles (1,100 kilometers) southeast of Bermuda and moving west at 7 mph (11 kph).