Tropical Rainstorm Arthur Makes Landfall in Texas, Raising Flood Risk Across Southern US

Tropical Rainstorm Arthur has made landfall in Texas, bringing with it a high risk of flooding across the southern United States. The storm formed just off the coast of Texas and made landfall in the afternoon of June 17, 2026, after a mass of showers and thunderstorms that had been sprawling across Texas and northern Mexico consolidated into a tropical system.

According to AccuWeather Senior Meteorologist Alex Sosnowski, the main threats from Tropical Rainstorm Arthur will be related to torrential rain and flash flooding, with some severe thunderstorms potentially producing tornadoes into Friday. The storm's impact will be felt across a broad area, including eastern Louisiana, Mississippi, Alabama, and Georgia, with a significant flood risk existing each day this week.

As Arthur moves inland over the southeastern United States, the storm's wind intensity will continue to decrease, but the rain will only get heavier. In fact, AccuWeather meteorologists have issued an extreme risk to lives and property in far southern Mississippi and Alabama, where rounds of very heavy rain on Friday can lead to life-threatening flash flooding.

The total rainfall forecast from eastern Louisiana to eastern Alabama is expected to be 4-8 inches, with a substantial area forecast to receive 8-12 inches of rain over a multiple-day period. The AccuWeather Local StormMax of 20 inches is also a possibility. This will lead to significant rises on several rivers, including the Sabine, Calcasieu, Pearl, Tombigbee, Tchefuncte, and Alabama rivers.

According to AccuWeather Vice President of Forecast Operations Dan DePodwin, "A significant flood risk exists each day this week, shifting slowly eastward from Texas into Wednesday to Louisiana, Mississippi, Alabama, and Georgia during the second half of the week." The storm's residual moisture may also lead to the formation of a non-tropical low-pressure area over the Atlantic.

The impacts of Tropical Rainstorm Arthur will be far-reaching, with life-threatening flooding, property damage, and disruptions to commerce and travel expected across the affected areas. The National Hurricane Center (NHC) has issued a Potential Tropical Cyclone warning for the area, and the AccuWeather app is providing hyperlocal severe weather alerts to help keep users safe.

In anticipation of the storm's impact, the AccuWeather team is working around the clock to provide the most accurate and up-to-date forecasts. By having the latest information, users can make informed decisions and take necessary precautions to stay safe.

Sources:

• Alex Sosnowski, AccuWeather Senior Meteorologist
• Dan DePodwin, AccuWeather Vice President of Forecast Operations
• National Hurricane Center (NHC)

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