World Cup games in the United States could be delayed for hours if severe weather strikes, as FIFA rules do not set a clear limit for calling matches off.

Under the US thunderstorm protocol, play must stop immediately if lightning is detected within eight miles of a stadium.

Players are taken off the pitch and sheltered in dressing rooms, while fans are moved to safe areas inside the venue.

A 30‑minute countdown begins once lightning is detected. If no further strikes occur, the match can resume. But if another strike happens during that window, the clock resets, potentially extending delays indefinitely.

FIFA cannot override US safety rules, which means matches could be delayed for extended periods.

The issue is not theoretical. During last summer’s Club World Cup in the US, several matches were disrupted by storms.