I'm just back from a trip to Ontario and upstate New York. It was 7 places in 8 days, so more driving than drawing, but I did manage a picture in all but one day. The first was on the flight there. Over Minnesota, the pilot came on the intercom saying "There's a big line of thunderstorms, but we see a bit of a gap, so we're going for it." Fun flying at 35,000 feet with clouds surging above you on both sides, and even more fun drawing them as we bumped and rattled our way through.
The next day we went to our family cottage in Southampton, an old fishing town on Lake Huron. The town docks were built when the water levels were a lot higher, so the tied-up fishing boats now look like a bit like submarines, with their hulls below the dock.
A storm rolled in the next day, a proper Three-Day Blow, with squalls, big winds and big waves. The clouds arrived and the rain just started as I finished the increasingly-frenzied half-hour sketch.
From there, on to a wedding in St. Catharines Ontario, with a quick visit to Niagara Falls. I only had a few minutes, so I drew the falls themselves, but the crowds and a century's worth of tourist attractions would also have been great subjects.