Supporters attending the World Cup match between Portugal and Democratic Republic of the Congo in Houston have been warned to remain vigilant as a severe storm warning is in place.
Forecasters predict the possibility of flooding in areas near Houston Stadium.
Concerns are growing about how the weather will affect the second game in Texas City.
Despite the predictions, organizers and local authorities have not released details of potential matchday plans.
Barricades have been set up in areas at risk of flooding, but Houston police and fire departments are on high alert.
Host committee chairman Chris Canetti called on supporters to monitor safety information.
“If you’re going to a game on Wednesday, I would encourage you to make plans,” he said.
“What you need to know before you go to the game is to monitor our website and all available websites for your safety and arrive early to ensure you can attend the game in the safest and best way.”
