The organiser has said that the Sound man has the say-so on when to halt the event. Fair enough.
But I have no intention of carrying on in a thunder storm, even though the Maypole will be surrounded by buildings which are much taller (the Town Hall clock-tower is not far away).
Public safety is not a new thought.

The question I thought Mudcat might help with is what usually happens to the schedule AFTER a delay for rain. Do you just tell someone 'hard luck, you've missed your spot'

I'm still keeping my fingers crossed. It was tipping down at 4 this morning, now (at 7) it is clear.