The National Hurricane Center says Subtropical Storm Laura is keeping its strength as it churns through the north central Atlantic, far from land.

The 11th named storm of the season was centered about 585 miles south of Cape Race, Newfoundland, at 11 p.m. EDT Monday. It's moving north at about 9 mph.

Laura's maximum sustained winds are near 60 mph. Forecasters don't expect that to change much in the next 24 hours.

Subtropical storms draw energy both from the atmosphere and the ocean surface and are more spread-out than tropical storms. Tropical storms draw strength primarily from the water.

Subtropical storms can also become hurricanes.