Grand Haven Public Safety Director Jeff Hawke said the explosion apparently came from a boat in the back corner of the building. It was reported at 10:49 a.m.
Michael Rosencrance was taken by ambulance to Spectrum Butterworth Hospital in Grand Rapids. He was taken to the hospital "with serious burns, but is expected to be OK." Hawke said Rosencrance's condition has been upgraded to fair. Hospital officials were not releasing any details at the family's request.
Hawke said it looked like Rosencrance had been working on the boat where the explosion took place. He said it appeared that only one 30-foot-long boat was involved in the explosion. At least two other boats were damaged by fire.
Hawke said the victim was performing some electrical work on the boat when he ignited a torch which caused an explosion. Rosencrance was able to get himself out of the building.
North Shore Marina is owned by Chris Lisowicz, who also owns Barrett Boat Works in Spring Lake. Lisowicz’s wife, Karen, arrived at the scene about 40 minutes after the explosion. She said her husband is fishing in the Bahamas and that she has not been able to contact him because his cellphone doesn't work there.
Karen Lisowicz watched the smoke billow from the building as several marina employees approached her with hugs. She said her husband bought the business about 10 years ago.
Lisowicz did not know how many other boats were being stored in the building.
"I have no information right now," she said. "I just want to make sure everything is OK."
Hawke, who instructed firefighters from several area departments who arrived to assist the Grand Haven Department of Public Safety, said the explosion "blew a hole in the side of the building."
Two firefighters went up in a bucket to cut the metal roof to allow smoke to escape. Hawke said ventilating the roof allowed fire crews to see better so they could access the situation.
"We have multiple attach crews attacking the fire with hose lines," Hawke said as thick, black smoke billowed behind him.
Firefighters said the explosion came from a boat that was about 30 feet long. A fire erupted, which activated the building’s sprinkler system.
The incident remains under investigation.
To see more photos from the scene, CLICK HERE.