What aircraft was he flying?
Ultralight!!
While he was VFR at the time he may well have been IFR capable and ready and able to fly an IAP. Alternatively he might well have had another good and safe plan in mind. We just don't know.
I had a feeling in my water that his plan was to try to maintain VFR....with the weather reports I gave him I knew that would not be possible...but then I was not the pilot just the "Area FISO" trying to help him!
The reason I have posted this is to try and help people learn.......In this instance I handed the aircraft off to an aerodrome Radar unit as it started to become obvious to me that his planned route would take him through their class D airspace......in the end I am glad I did.!!