By Anietie anii-bassey
A developing weather system in the northern Gulf of Mexico could briefly strengthen into a tropical depression or tropical storm before moving inland along the Upper Texas Coast, with forecasters closely monitoring the disturbance for possible impacts across southeastern Texas and southwestern Louisiana.
The system, currently designated Invest 97L, developed after a large complex of thunderstorms moved away from southeastern Louisiana late last week and interacted with an area of spinning mid-level winds over the northern Gulf.
The combination helped produce a small surface low in an environment that has remained unusually favorable for tropical development.
Forecasters said the system could become a short-lived tropical depression or tropical storm later Monday or early Tuesday before making landfall. If it reaches tropical-storm strength, the next name on the 2026 Atlantic hurricane season list is Edouard.
Invest 97L was first highlighted by the National Hurricane Center on Friday evening, when forecasters gave it only a 10% chance of developing.
However, the disturbance strengthened more quickly than initially anticipated as it moved through a pocket of relatively light upper-level winds and over very warm Gulf of Mexico waters.
By Sunday evening, satellite imagery and other observations showed the system becoming increasingly organized just south of the Louisiana coast. As a result, forecasters significantly increased the chances that the system would develop into a tropical cyclone.
The window for additional strengthening is expected to be relatively brief. The disturbance is already close to the Gulf Coast, meaning it has limited time to organize before its circulation moves over land.
Forecast models generally indicate that whatever system develops will remain weak, with most projections showing either a tropical depression or a low-end tropical storm before landfall.
Forecasters are also watching the system because of the possibility that it could strengthen enough to warrant tropical storm watches or warnings for portions of the Texas and Louisiana coasts.
If the system does not formally become a tropical depression or tropical storm before approaching land, forecasters could designate it a Potential Tropical Cyclone. That designation would allow officials to issue tropical storm watches or warnings when a system has not yet developed a closed circulation but poses a sufficient threat to land areas.
For residents along the Upper Texas Coast, the most significant concern is expected to be rainfall rather than damaging winds.
Weather models have been remarkably consistent in keeping Invest 97L, or whatever eventually develops from it, relatively weak during the next 24 hours. The system is not currently expected to become a major hurricane or produce a widespread destructive wind threat.
Instead, locally heavy rainfall could become the primary hazard from Tuesday into early Thursday. Areas of southeastern Texas could experience periods of intense rainfall, and some locations could see enough rain in a short period to produce localized flash flooding.
The greatest rainfall concerns extend along and east of the Interstate 45 corridor, including the Houston-Galveston metropolitan area and areas stretching toward Beaumont. Portions of East Texas, particularly areas east of Bryan and College Station, could also receive periods of heavy rain.
The rainfall threat may also extend into southwestern Louisiana, including areas around Lake Charles, as the system moves inland and gradually weakens.
Although flooding is possible in isolated locations, forecasters are not currently anticipating a widespread catastrophic flooding event. The system is expected to move inland relatively quickly, limiting the amount of time it can remain organized over the Gulf.
For some areas of Texas, however, the rainfall could provide welcome relief. Parts of the state continue to experience moderate drought, and additional rainfall could help improve soil moisture and ease some of the ongoing dry conditions.
Meteorologists will continue watching the system for any unexpected strengthening. Tropical systems can occasionally outperform forecasts when they encounter particularly favorable atmospheric conditions, and the unusually warm Gulf waters provide additional fuel for thunderstorms and tropical development.
Meanwhile, the remnants of Tropical Storm Dolly were moving across the Greater Antilles early Monday, bringing rain to Puerto Rico, the U.S. Virgin Islands, Haiti and the Dominican Republic.
Dolly was a short-lived tropical storm that developed late last week before weakening. Its remnants are expected to continue moving westward and eventually approach South Florida later in the week.
The moisture associated with Dolly’s remnants could contribute to an already wet weather pattern across South Florida, potentially increasing rainfall chances later this week.
Some areas of the Caribbean could also experience locally heavy rain, particularly in mountainous locations where rainfall can quickly collect and trigger flooding.
Despite the tropical moisture, forecasters do not currently expect Dolly’s remnants to redevelop into another tropical cyclone. The system will have to cross several mountainous islands, which are expected to disrupt its circulation and reduce its chances of reorganizing.
Most forecast models have also backed away from earlier indications that Dolly’s remnants could strengthen again. The overall consensus now favors the system remaining a tropical wave as it moves toward Florida.
Farther west, another tropical disturbance in the eastern Pacific is attracting attention because of unusually warm ocean temperatures and some long-range computer model projections.
Invest 95E is located roughly 1,500 miles south-southeast of San Diego and is being monitored for possible development. The eastern Pacific has been particularly active and warm this year, with sea-surface temperatures running at record or near-record levels in several areas, including waters near Mexico.
Some long-range forecasts have suggested that Invest 95E could eventually move north toward Southern California, raising concerns about a possible tropical storm or hurricane threat. However, forecasters emphasize that such a scenario remains unlikely.
The eastern Pacific generally becomes a much less favorable environment for tropical cyclones as storms move north of approximately 30 degrees latitude. Cooler waters and stable atmospheric conditions associated with the California Current typically weaken tropical systems before they can reach Southern California.
Southern California and the Desert Southwest can occasionally experience increased humidity, rainfall and thunderstorms when remnants of tropical systems move northward from Mexico. However, direct landfalls by organized tropical storms or hurricanes are exceptionally rare.
The last tropical storm known to make landfall in Southern California occurred in 1939, highlighting just how unusual such an event would be.
Invest 95E could strengthen considerably over the coming days, and some forecast guidance indicates that it may become a hurricane. However, the more reliable model guidance generally favors a track that carries the system west or northwestward into the open Pacific rather than toward the California coastline.
There remains some uncertainty over the system’s eventual track, and a portion of the forecast guidance suggests that it could turn northward. Even under that less likely scenario, forecasters say the system would be expected to encounter increasingly hostile conditions and weaken considerably before reaching California.
As a result, there is currently no credible indication of a hurricane threatening Southern California next week.
The more realistic potential impact for California would be an increase in rainfall if moisture from the disturbance is drawn farther north toward the coast. Such an outcome remains possible but is considered less likely than the system remaining offshore.
For now, attention remains focused on Invest 97L in the Gulf of Mexico, where the next several hours could determine whether the system earns the name Edouard before reaching the Texas coast.
Regardless of whether it becomes a named storm, residents from southeastern Texas into southwestern Louisiana should closely monitor updated forecasts because heavy rainfall and localized flooding are expected to be the primary threats as the system moves inland.
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