The National Hurricane Center is issuing advisories on Tropical Storm Isaias which is rapidly moving northeastward over the northeastern U.S.
1. A small well-defined low has formed within a broader trough of low pressure located a few hundred miles southwest of Bermuda. This system is producing very little thunderstorm activity at this time, but some slight development is possible while the system moves little during the next couple of days. A southwestward drift is forecast on Thursday and Friday.
Formation chance through 48 hours...low...20 percent.
Formation chance through 5 days...low...20 percent.