My brother, two friends and I went out for a sail.
For most of the day it was sunny with winds mostly from the south at about 15 knots. Waves in the 1 -2 foot range.
The weather forecast called for thunderstorms in the evening starting around 8:00 pm in the Waukegan area. About two hours into the sail we noticed clouds building in the west and looking at the weather RADAR (Smartphones are a great thing to have when sailing) we saw a line of heavy storms about 100 miles away, west of Rockford. The Waukegan forecast still said storms wouldn’t hit until 8:00 pm. About half an hour later the clouds continued building and checking the RADAR again we saw that a line of new storms popped up between us and the line of storms out by Rockford. I decided to cut our day of sailing short by about an hour and we headed back in. As it turned out the line of storms that had popped up split and went around us. We only got a couple minutes of very light rain, though we could see lightening to our north and south.