Thanks Clubman, you don't happen to know what it actually means? It's mentioned in legal correspondence of my deceased father wrt a legal acion he has pending. I thought it would be in wiki which is uaually very good with legal terminology but it seems to be just an irish thing.
There is a great Irish mini series called
The Hanging Gale (with the McCann brothers) 1995
That was the first time I had heard of the term Gale..A google search for
gale day brings up an Irish governmen site with more details on the term
"gale day"