Published: Aug 27, 2010 10:26 AM EDT
Updated: Aug 27, 2010 7:26 AM EDT

MIAMI (AP) - Hurricane Danielle has become a Category 4 storm far out over the Atlantic.

Danielle's maximum sustained winds increased Friday to near 135 mph (215 kph) with some additional strengthening possible.

Danielle is located about 545 miles (875 kilometers) southeast of Bermuda. The hurricane is forecast to pass east of Bermuda on Saturday night.

Also in the Atlantic, Tropical Earl is moving west with maximum sustained winds near 45 mph (75 kph).

And in the Pacific, Hurricane Frank has weakened slightly off Mexico's coast. Further weakening is expected over the next couple days as the hurricane moves over cooler waters.