Tropical Storm Gil in the East Pacific continues to weaken as it heads northwest over cooler waters and into a drier air mass, the National Hurricane Center said today.

Forecasters say a disturbance in the Atlantic has a 40-percent chance of cyclone formation over the next week.

Forecasters say Tropical Storm Gil is expected to become a hurricane in the eastern Pacific Ocean on Friday. The U.S. National Hurricane Center reports the storm is about 870 miles southwest