Season's 1st tropical storm forms off Mexican coast

• The eastern and north Pacific season began Wednesday and runs through Nov. 30.
• The storm was centered about 665 miles southwest of Acapulco%2C Mexico.

MIAMI - Forecasters say the first tropical storm of the eastern Pacific hurricane season has formed off the coast of Mexico.

The U.S. National Hurricane Center in Miami says Tropical Storm Alvin formed Wednesday. It had maximum sustained winds of about 40 mph and was moving west at 13 mph. It was centered about 665 miles southwest of Acapulco, Mexico.

Alvin could become a hurricane in several days. It isn't currently a threat to land.

The eastern and north Pacific season began Wednesday and runs through Nov. 30.

The National Hurricane Center says there is typically an average of 15 named storms each season, with four of those considered major hurricanes reaching at least Category 3 strength, with top sustained winds of 111 mph.