The National Hurricane Center has bumped up development chances for a low pressure system expected to cross into the northwestern Gulf.
"A trough of low pressure located over northeastern Mexico is producing a large area of disorganized showers and thunderstorms. Development is not expected during the next day or so while the trough remains inland. However, the system could re-emerge over the northwestern Gulf of America late Tuesday or Wednesday, and environmental conditions there are marginally conducive for the formation of a short-lived tropical storm on Wednesday into Thursday," senior hurricane specialist Eric Blake said Monday afternoon.
"Regardless of tropical cyclone formation, interests across southern and eastern Texas and portions of Louisiana and Mississippi should prepare for periods of intense rainfall over the next several days which could produce widespread, life-threatening flash, urban, and river flooding. Gusty winds and coastal flooding are also possible along portions of the northwestern Gulf Coast, and Tropical Storm Watches or Warnings could be required on Tuesday," Blake added.
The potential tropical impact adds to an expected heavy rain threat thanks to a stalled frontal boundary. Most of southeast Louisiana is under a flood watch through Friday morning.