Sunday Tropics Update: Francine forming today or tomorrow KPRC Click2HoustonAtlantic Invest 91L has millions along Texas Gulf Coast preparing for tropical depression or storm this week Fox Weather Tropical depression could form in Gulf Coast this week USA TODAYInvest 91L likely to bring heavy rain, impacts to Louisiana next week BRProud.comDisturbance in Gulf of Mexico expected to form soon, could impact Louisiana NOLA.com