I was diving an Inland lake here in Michigan during the heat of the summer and had a isolated storm blow in. When we went under the weather was partly cloudy 99% humidity and 90 degrees. There was a chance for isolated thunder storms as usual in Michigan at this time of year. This was back when we didn’t have a cell phone to check the radar right before the dive. Being close to Lake Michigan makes for some flexible weather patterns.LOL We were about 45 minutes into our dive at 40’ checking out an anchor that I found when it suddenly turned into a night dive. We surfaced to a heavy down pour of rain and gusty winds with lightning off to the south. We were only 100 yards from the launch site so we dropped back to the bottom making a straight compass course back to the beach. The rain was coming down so hard we were wetter out of our wetsuits then in them.LOL