By SETH BORENSTEIN, AP Science Writer

NEW YORK (AP) — An unusual interaction of two tropical storm systems — maybe even a rare dance — could happen soon in the Caribbean. If it does, it would lessen the mess and maybe even shield the Carolina coast from a wet embryonic tropical system chugging that way.

A still unnamed and developing tropical depression – likely to become Imelda -- is heading toward the South Carolina/North Carolina state line and has the potential to bring damaging heavy rains, especially if it stalls and keeps pouring for awhile.

The depression off the coast of Cuba and heading to the Bahamas is threatening enough and could hit early next week, so residents of the Carolinas need to be aware, especially of rain and flooding possibilities, National Hurricane Center

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