U.S. impacts, including heavy rain and high surf, could begin on Saturday.

Now stalled over Mexico, the storm is expected to head toward the U.S. Gulf Coast this weekend. Check out WU's analysis.

Much of the country is prone to wind damage from thunderstorms.

Intensifying downpours are testing the nation's backlog of high-hazard dams.

The 2005 Atlantic hurricane season had the most named storms on record.