Happy summer weather watchers!
In Dublin, we had a couple of quite loud individual bangs of thunder on Monday night, about 20 minutes apart after midnight. And the rain it went from 10" left at the bottom to full overnight.
Hot, muggy and calm since. Sailing racing cancelled last night for all, even dinghies (which only need a puff to go). Sea warmed up to 17 degrees locally (per Dublin Bay Buouy). Barely a breath again today, I'm expecting to see no racing (different dinghy class) tonight.
In fact, it was so still, and also cloudy (and a few generation stations offline) on Monday, that while we had avoided a "system alert" all winter, we had one on Monday (where gap between electricity generated and electricity demanded by everyone is closer than is comfortable and where power cuts could happen).