I'm surprised that there isn't already a thread for this, but I can't find one.
My contribution - although I wasn't actually playing - is the Brisbane Chess Club on March 30. The outside conditions were bad enough, with heavy (although sporadic) rain from the remains of Cyclone Debbie. Unfortunately the rain had also seeped through the walls into the Bridge Club, transforming the normally excellent playing venue into a scene from the latest episode of Doctor Who (complete with water creeping along the floor).
Sixteen players still turned up to play, however!
Thanks to Mark Pendrith for the photos.