Hurricane Guillermo has strengthened into a Category 2 storm far out in the Pacific.

The National Hurricane Center says Guillermo's maximum sustained winds are near 100 mph. Winds are expected to stay about the same for the next 12 hours, but the hurricane is expected to weaken Saturday as it moves over cooler water.

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Guillermo was centered about 1,275 miles west-southwest of the southern tip of Mexico's Baja California peninsula on Friday afternoon. It's moving west near 15 mph.