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As the NFL prepares to stage its second regular-season game of the season in London, an irregular weather event could impact the game.

Via BBC News, a storm system due to hit England on Sunday night and Monday carries with it a risk of heavy rain, falling trees, building damage, and wind gusts of up to 80 miles per hour.

England’s Met Office has issued yellow (lowest level of three) and amber (second level) warnings throughout Southern England for Sunday.

The 49ers and Jaguars will play at Wembley Stadium in London at 5:00 p.m. local time.

Regardless of the potential impact of the storm on the game, it could delay the efforts of the teams and league personnel to leave London.