SAN JUAN, Puerto Rico — The outer bands of Hurricane Humberto lashed Bermuda on Tuesday as it approached the tiny British territory, with newly formed Hurricane Imelda following closely behind.

A hurricane warning was in effect for the island in the north Atlantic as forecasters advised of dangerous seas, strong winds and heavy rain.

Humberto was located about 300 miles west of Bermuda. The Category 1 storm had maximum sustained winds of 80 mph and was moving north-northwest at 18 mph, according to the National Hurricane Center in Miami.

Humberto was a Category 4 storm on Monday, but was quickly losing strength and was forecast to dissipate by Wednesday.

Humberto was expected to pass well west and north of Bermuda on Tuesday and Wednesday morning, while Imelda was expected to pass near

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