A potential tropical cyclone could develop into a tropical storm this week and make landfall in Texas or Louisiana. Thunderstorms and flooding are expected.

Tropical Storm Edouard was heading toward the Gulf Coast early Tuesday and expected to gain strength before bringing potentially heavy rains and flooding into parts of Texas and Louisiana.

Forecasts anticipate heavy rain and significant flooding, with 3 to 6 inches of rain common and isolated totals up to 9 inches, particularly east of I-45, along with risk of storm surge and rough surf...