Two Michigan men were stunned to see an enormous bank of fog rolling in on them last Wednesday as they did a little fishing just off shore in Lake Michigan. After about an hour on the water, Andrew Ballard, along with his father Spencer, noticed what they thought were clouds moving in to the area. “We couldn’t see anything and the wind was crazy — it wasn’t like anything I’ve seen before,” Ballard, 25, told local media. Andrew was able to film the fog as it moved towards them over the water. Meteorologists say the formation, also known as advection fog, is common in the Great Lakes at this time of year when the water is still cold. Fortunately the men were close to shore and found their way off the water without delay.