Tropical Storm Arthur has formed off the Texas Gulf Coast, marking the first named storm of the Atlantic hurricane season. Heavy rains and flooding are expected across the Southeast and Gulf Coast, with warnings issued for Texas, Louisiana, and surrounding areas. Cities such as Galveston are under flood watch as residents prepare for potential flash flooding and life-threatening conditions. The storm is anticipated to bring over 15 inches of rain in certain regions, prompting disaster declarations in Southeast Texas. Authorities urge caution as the storm could significantly impact transportation and local businesses.