This weekend, severe storms, flash flooding, and extreme heat are set to impact regions across the Plains, Midwest, and South, posing potential disruptions for World Cup fans, athletes, and vacationers alike.

Flood watches are currently in effect across the South, impacting eastern Texas, Louisiana, southern Arkansas, Mississippi, Alabama, and Georgia as remnants of Tropical Storm Arthur make their way through these areas.

Preliminary precipitation totals in Louisiana suggest a potential new state record. Previously, the record was 22 inches within 24 hours, but Cottonport experienced an estimated 29 inches on Friday. Additional measurements showed 22 inches in Plauchsville and 17 inches in Simsport, near the Atchafalaya River.

As the weekend progresses, regions in Texas, Louisiana, and Mississippi are expected to receive heavy rainfall, exacerbating ongoing flooding issues from Thursday and Friday. According to the National Weather Bureau, the moist air mass combined with saturated soil raises the risk of localized flash flooding if the storm lingers in one area.

The Plains and Midwest are also at risk of storms, which could threaten Saturday night’s World Cup match between Ecuador and Curaçao in Kansas City. Flood watches are active for Missouri, Nebraska, Kansas, Illinois, and Indiana as thunderstorms may lead to hazardous flash flooding.

Thunderstorms are forecasted for regions in eastern Nebraska, Kansas, and Colorado, with potential risks of tornadoes, large hail, and wind gusts reaching up to 125 mph.

By Sunday morning, the National Weather Service anticipates the storm will continue moving east across the Midwest, with additional storms forming along a slow-moving warm front, increasing the risk of flash flooding.

Meanwhile, other southern areas are bracing for extreme heat and humidity. A heat advisory has been issued for southeast Texas, where the heat index—an amalgamation of temperature and humidity—could soar to 108 degrees Fahrenheit.

World Cup players and fans in Houston may also contend with oppressive heat during Saturday night’s clash between the Netherlands and Sweden.

The National Weather Service advises residents to “stay hydrated, wear light-colored clothing,” and “limit strenuous outdoor activities, particularly in the afternoon.” Heat advisories are also in effect for Louisiana, southern Alabama, and southern Florida.

This patchwork of challenging weather conditions could pose significant inconveniences for travelers. The Transportation Security Administration anticipates over 3 million passengers will navigate TSA checkpoints this Sunday alone, with a high volume of travelers expected throughout the long weekend.