Flooding Threat May Last Into at Least Friday in Parts of Texas, Louisiana, Oklahoma, Arkansas The Weather Channel 2 hrs ago weather.com meteorologists Replay Video UP NEXT Flooding rain has swamped parts of Louisiana, Texas and Arkansas since Monday and more heavy rain is possible through at least Friday in these storm-fatigued areas. Since Monday, serious flooding hit parts of southeast Texas and Louisiana, including Lake Charles, Baton Rouge, Louisiana, and Port Arthur, Texas. See the link below for more details on all of the flooding impacts. ( This is all being caused by an upper-level low that moved slowly from the Southwest into the Plains earlier in the week. Leftover upper-level energy from that system will continue to tap into a southerly flow of moisture supplied by high pressure in the East, giving rise to the development of additional rounds of rain and thunderstorms through at least Friday, if not Saturday.