The National Weather Service in Juneau issued a severe thunderstorm for the city and bureau of Juneau at 3:26 p.m. Alaska time Monday — the first severe thunderstorm warning eve

It was a sunny afternoon until the sky abruptly darkened, heavy rain came down and winds gusted up to 60 mph. A cruise ship docked downtown broke free of its mooring and drifted into the Gastineau Channel at the height of the storm.

A rare severe thunderstorm brought ferocious winds to southeastern Alaska Monday afternoon, blowing a massive cruise ship away from the pier.