Late tomorrow evening the moon will be positioned roughly to the North (or NNW if you're being pedantic). So you'd need to seeking a location where light pollution to the north was minimal. That rules out central Birminham and anywhere to the south of the city. Ideally you would need to be somewhere around the M6/M54 junction. (i.e. on the northern edge of Wolverhampton or to the west of Cannock). However the cloud cover isn't expected to fully clear until around midnight.
If you don't get to see it, remember that (although Super Moons are quite rare) there's another one on 9th September. (The moon will be roughly in the same location, but just a bit to the east, so the same viewing points will apply)
Answer sourced from these sites:
http://www.independent.co.uk/news/science/supermoon-2014-all-you-need-to-know-about-this-sundays-supermoon-9658849.html
http://www.skyatnightmagazine.com/moon-phase-and-position
http://www.bbc.co.uk/weather/2655603
and from looking at a road atlas!