The Atlantic hurricane season is officially underway. Tropical Storm Arthur formed on the morning of June 17, 2026, hugging the Texas coastline as a marginal but highly dangerous tropical system.
While Arthur’s maximum sustained winds are hovering around 45 mph—well below hurricane strength—meteorologists at the National Hurricane Center (NHC) emphasize that wind speeds are not the real story here. Arthur is a classic “rainmaker” moving slowly into an area already saturated by days of pre-development downpours.
Current Status & Path
- Location: Just off the middle Texas coast, moving northeast toward the Texas-Louisiana border.
- Landfall Expectation: Anticipated to move inland over southwestern Louisiana by Wednesday night, rapidly dissipating over land by early Thursday.
- Warnings in Effect: A Tropical Storm Warning stretches from High Island, Texas, to Morgan City, Louisiana.
The Primary Threat: Extreme Rainfall
Because the storm’s center is tracking so close to the coast and moving slowly, it is dragging a massive plume of tropical moisture across the Gulf Coast. NHC Director Michael Brennan warned that a prolonged, multi-day heavy rainfall event is the greatest threat to life and property.
- General Forecast: Widespread totals of 5 to 10 inches are expected across southeast Texas, southern Louisiana, Mississippi, and Alabama.
- Localized Extremes: Isolated pockets could see up to 20 inches of rain through Friday.
- Pre-existing Flooding: Parts of coastal Texas (like Brazoria County) already recorded more than 8 inches of rain overnight before Arthur officially gained its name, leading to widespread flash flooding, stalled vehicles, and early power outages.
Secondary Hazards: Storm Surge & Tornadoes
- Storm Surge: Minor to moderate coastal flooding is expected. Areas from Matagorda to Galveston, Texas are anticipating a 1-to-3-foot surge, while areas east of Galveston into Louisiana could experience 3 to 6 feet of surge depending on the timing of high tide.
- Tornadoes: A marginal tornado risk exists as the storm’s outer bands rotate inland, particularly threatening southeast Louisiana, southern Mississippi, and the western Florida Panhandle.
Safety Reminder: It takes just 6 inches of rushing water to sweep an adult off their feet, and 12 inches to float and carry away most vehicles. Emergency officials across the Gulf Coast are urging residents to stay off flooded roadways and have multiple ways to receive emergency weather alerts.