Most of the waves "aren't very noteworthy, and about half of them are almost imperceptible," said Chris Landsea, chief of the National Hurricane Center's tropical analysis and forecast branch.

Storm tracker: Hurricane forecasters watch tropical waves and more The National Hurricane Center does not expect tropical cyclone activity in the Atlantic during the next seven days, but ...

Big waves began to roil Lake Superior. The squalls came mixed with snow and icy spray. At that point, Captain J. W. Duddleson was just trying to find someplace the Waldo could get a break from the ...

The rainfall was linked to a tropical cyclone, but there were also lesser-known forces at work: huge, planet-scale oscillations called atmospheric waves which bring heavy rain to northern Australia.