Over the last week we've seen temperatures below freezing, even in my garage.
Today it is +11c, so I went in to check things. My Plus 4 has been dripping coolant from the top hose. Not much, about 2mm down on the plastic tank.
This is a Morgan "feature" which you may or may not have. When it gets seriously cold, the metal contracts and effectively loosens the hose clips. I struggled with my Roadster over several winters, because some of the metal pipes are not completely circular, which makes sealing more difficult. Eventually I sorted my Roadster.
This time the hose clip went three quarters of a turn, so hopefully that will sort it.
So check your coolant level, especially after a cold spell.
Oh and from 11th December I've been here 14 years................................Wow!