50 firefighters are currently tackling a blaze at Strykers Bowling on Shaw Road, Wolverhampton.
West Midlands Fire Service says there are large volumes of smoke in the area and, as the bowling alley is near the railway line, all trains passing it have been advised to slow down.
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Ahead of the conference, calls are growing for Midlands regions to have their own devolved powers to match those on offer to Scotland.
After a cool start, Sunday looks set to be a dry and bright day, with sunny spells.
Mainly dry with clear spells but possibly one or two light showers near coasts overnight, remaining largely dry on Sunday.