Shame but thats the problem in the Uk. Atlantic fronts!
thousands of cars exiting (or not) sodden car parks and all the mud on the local roads would be a logistical and public safety nightmare (remember Waddo cancelled saturday last year)
Unless you have something like the NEC infrastructure with its hard car parks, you are never going to cope with 140,000 folks and their cars when it rains.
so its off to Birmingham airport next year then!
No seriously, I was going to go Sunday and pay the 45 quid as i couldnt guarantee that . my 8 yr old would not be sick on the weekend etc etc or some other crisis, or that it would not p!!1 down, to take the risk with advance ticket so I would get up at 04-00 and drive down and pay on the gate. Thats off now as its only advance tickets on sunday (if it gos ahead) but there is always Duxford legends this weekend