Research from NASA’s Terra satellite provides critical insights into the evolving strength and effects of Tropical Storm Arthur during its peak impact period.
The latest update highlights that Tropical Storm Arthur, the initial named storm of the 2026 Atlantic hurricane season, maintained strong characteristics despite not reaching hurricane status. It continued to deliver powerful winds across parts of the Gulf Coast, with sustained winds reaching 40 miles (65 km) per hour. The storm extended 175 miles (280 km) from its center, and wind gusts up to 48 miles per hour were recorded in Galveston, Texas.
Heavy rainfall associated with Arthur posed significant risks, with estimates from IMERG indicating intense precipitation over Gulf waters and inland areas on June 17. Reports suggest rainfall rates of 3 inches (7.6 cm) per hour in southeastern Louisiana, potentially exceeding 12 inches (30 cm) in total across the region.
> roof’d eyes with caution. The track showed consecutive increases in moisture, emphasizing the threat to central Gulf Coast states on June 18.
While the storm gradually weakened and lost storm-total characteristics, its early warnings underscored potential for severe rainfall and flash flooding. Meteorologists urged preparedness across affected regions.
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