First named storm of the season set to hit the U.S.
Tropical storm watches were posted today along the Gulf Coast ahead of Alberto, the first named storm of the season. Cancun, Mexico, is already experiencing 40 mile an hour winds and up to a foot of rain. Alberto is expected to hit the U.S. on Saturday. Parts of Alabama are already swamped from prior storms. Craig Setzer from WFOR joins "CBS Evening News" with more on the storm.