Tropical Storm Edouard formed in the northern Gulf of Mexico on Monday evening, August 31, with sustained winds of 40 mph, located about 140 miles southeast of Cameron, Louisiana, according to the National Hurricane Center.

The short-fuse, fast-moving system is forecast to strengthen overnight into a stronger tropical storm before making landfall near the Texas–Louisiana border on Tuesday night. A tropical storm warning stretches from Port Bolivar, Texas, to the Vermilion-Iberia Parish border in Louisiana.

Heavy rainfall is the primary concern. A Level 2 of 4 risk of flooding rainfall has been issued for southeast Texas, with torrential rates of 2 to 4 inches per hour capable of causing flash flooding. Storm rainfall totals of 3 to 5 inches are expected in most areas, with 6 to 9 inches possible in isolated spots. A storm surge watch is also in effect from High Island, Texas, to the Vermilion-Cameron Parish border.

The storm's small size makes it prone to abrupt changes in intensity, and forecasters are monitoring closely for possible strengthening above current projections. Tropical storm-force wind gusts capable of causing spotty power outages are possible along the coast.

The formation of Edouard comes amid a notably subdued 2026 Atlantic hurricane season. The season's activity is running at just 11% of average as of August 30, driven by a strengthening and potentially record-breaking El Niño that has produced unusually strong wind shear across the tropical Atlantic. The Atlantic's first hurricane is running nearly three weeks late compared to the average — the longest wait since 2022.

September is typically the peak of Atlantic hurricane season, when warm water temperatures and lower wind shear create the most favorable conditions for storm development. However, the current El Niño pattern has suppressed those conditions, though meteorologists caution that storms can still find windows of opportunity even in a subdued season.