Invest 92L has a 90% chance of tropical development as the disturbance becomes better organized over the southwestern Gulf of Mexico, according to the National Hurricane Center. A tropical depression is expected to form within the next day or so as the system drifts eastward.
The NHC raised formation odds to 90% through both 48 hours and seven days, up from 70% and 80%, respectively. The disturbance remains a broad area of low pressure and has not yet developed into a tropical depression or named storm.
Forecasts show Invest 92L moving east before turning north or northeast toward the northern Gulf Coast late this week. The NHC said it remains too early to determine specific impacts, with areas from Louisiana to the Florida Panhandle advised to monitor the system.
The low-pressure area is also expected to bring gusty winds and heavy rain to western portions of Mexico’s Yucatan Peninsula within the next couple of days. Farther north, the eventual track will determine how much rain and wind reaches Louisiana, Mississippi, Alabama and Florida.
Invest 92L faces uncertain strengthening outlook
Conditions around the disturbance support further organization, though stronger upper-level winds over the northern Gulf are expected to become less favorable as it moves north. Increasing wind shear would limit strengthening and push heavier thunderstorms away from the circulation center.
Forecast models still differ on the system’s track and intensity. Some guidance brings it closer to Louisiana and Mississippi, while other solutions take it farther east toward the Florida Panhandle.
The amount and timing of rainfall along the northern Gulf Coast will depend heavily on where a defined center forms and how the disturbance moves afterward.
Heavy rainfall remains a concern even if Invest 92L stays relatively weak. Forecasts indicate another period of substantial rain along parts of the Louisiana and Florida coasts later this week, with flash flooding possible in areas receiving repeated downpours.
NOAA aircraft to gather more data
A NOAA Gulfstream aircraft is scheduled to sample the atmosphere around Invest 92L. An Air Force reconnaissance aircraft is expected to investigate the disturbance Wednesday, providing direct measurements as forecasters assess whether a closed circulation has developed.
Those observations should provide better information on the structure of the system and the surrounding atmosphere. Forecast confidence on its eventual track and strength is expected to improve once Invest 92L develops a more defined center.
The system comes during an unusually quiet Atlantic hurricane season, with no Atlantic hurricane formed so far in 2026. If Invest 92L strengthens into the next named tropical storm, it would be called Isaias.
