(CNN) — Tropical Storm Imelda is strengthening and is expected to become a hurricane by Tuesday as it moves off the Southeast coast, kicking up dangerous surf, rip currents, coastal flooding and beach ...

(CNN) — Tropical Storm Imelda formed over the Bahamas Sunday afternoon and is expected to intensify into a hurricane, and while its forecast is less ominous for the Southeast coast, the storm will ...

(CNN) — A marine heat wave spanning much of the North Pacific Ocean is already influencing the weather in North America and is poised to make its mark on winter. The unusually warm ocean water, coined ...