A complicated forecast scenario continues to unfold Friday near the Bahamas as Hurricane Humberto intensifies and a system that is expected to become Imelda develops, strengthens and moves east of the Florida coast.

Much uncertainty remained about the track of a band of showers and thunderstorms near Cuba, a National Weather Service forecaster said.

Tropical storm alerts have been posted and at least one state has declared a pre-emptive state of emergency as a looming storm system is on its way to becoming future Hurricane Imelda, bringing the potential threat of heavy rain and strong winds to parts of the Southeast.

Spaghetti models—computer models that illustrate potential storm paths using meteorological data—suggested Invest 94L could potentially track toward the U.S. Southeast Coast.

Humberto rapidly strengthened to a hurricane early Friday and is forecast to ramp up into a formidable major (Category 3 or stronger) hurricane this weekend, but it’s the disturbance to Humberto’s west that’s expected to develop and threaten the southeast U.

Strengthening Humberto and developing Imelda staying just off our coast will have some coastal impacts of large swells next week.

Computer models suggest soon to be Imelda could impact parts of the Southeast U.S. East Coast early next week.

If Humberto becomes a major hurricane as expected, it will be the first time since 1935 when a season's first three storms were Category 3 or higher.

Meteorologists have issued new alerts as two active tropical cyclones in the Atlantic raise the risk of a rare Fujiwhara Effect, where the systems could interact and potentially merge into a massive storm,