Not sure if this is off topic but say if you enterd class D airspace VFR not above 1500ft and halfway to the aerodrome you become IMC due to cloud that you didnt forcast, Then you have Radar asking you to report field in sight.. What is the best thing to do?
I know they wouldnt vector you normally at the low altitude that you was cleared the VFR clearence.. 'at Liverpool below 1900ft'
Such a clearance will normally have the words 'maintain VFR' in it, which means you do exactly that, maintain VFR. If there is cloud in your way you either descend, go round it or do a 180, informing ATC of your intentions of course.
Alternatively you just request an IFR clearance to start with, if your licence allows of course.