The 2026 Atlantic hurricane season commenced with the formation of Tropical Storm Arthur, which brought severe weather conditions, including intense rainfall and the potential for flash flooding, to the U.S. Gulf Coast.
Observations from Space
On June 17, 2026, NASA’s Terra satellite utilized its MODIS (Moderate Resolution Imaging Spectroradiometer) instruments to capture images of the storm. The first image, taken at 10:30 a.m. Central Time (15:30 Universal Time), displayed the storm in natural color, while the second image depicted infrared signals known as brightness temperature. This latter method helps to identify cooler cloud tops, represented in white and purple, contrasting with the warmer surface below, shown in yellow and orange.
Storm Characteristics
At the time of observation, Arthur had just been classified as a tropical storm by the National Hurricane Center (NHC). The storm exhibited maximum sustained winds of 40 miles per hour (65 kilometers per hour) and tropical-storm-force winds that extended 175 miles (280 kilometers) from its center. In Galveston, Texas, wind gusts reached 48 miles per hour.
Impact on the Gulf Coast
Tropical Storm Arthur produced significant rainfall, prompting warnings from the National Weather Service about the risk of life-threatening flash flooding. Data from the Integrated Multi-Satellite Retrievals for GPM (IMERG), part of the Global Precipitation Measurement mission, indicated high rainfall rates over Gulf waters and inland areas on June 17. As the storm weakened on June 18, it continued to deliver moisture to central Gulf Coast states, with southeastern Louisiana experiencing rainfall rates of 3 inches (7.6 centimeters) per hour.
Forecasts suggested that total rainfall could exceed 12 inches (30 centimeters) in some regions, with certain locations potentially approaching 20 inches (51 centimeters).
Conclusion
Tropical Storm Arthur serves as a reminder of the significant weather events that can occur during the Atlantic hurricane season. The data collected by NASA’s Terra satellite not only enhances our understanding of storm dynamics but also aids in preparing for the impacts of such storms on communities.
This article was produced by NeonPulse.today using human and AI-assisted editorial processes, based on publicly available information. Content may be edited for clarity and style.
