The Sun Herald reports (http://bit.ly/1kVnV0T) that the storm toppled the recreational vehicles at around 8 p.m. Monday.
Police Capt. Jerry Cooksey tells the newspaper that emergency responders are going from trailer to trailer looking for anyone trapped or hurt. There were no immediate reports of injuries or deaths.
National Weather Service meteorologist Robert Ricks says straight-line winds of about 50 mph overturned the RVs and that none of them were tied down. He says the weather service doesn't believe it was a tornado.
A severe thunderstorm warning was in effect in advance of a strong cold front.