Astronauts captured the first swirling clouds of the 2014 Atlantic season

Space Station Cameras and Crew Capture Views of Tropical Storm Arthur · 4:00 · Video: NASA · Watch at the source

In short: High above the Florida coast, the Expedition 40 crew used wide-angle lenses to document Tropical Storm Arthur. As the storm moved north, orbiting observers watched a sprawling mass of clouds begin to take shape, providing a rare perspective on a system destined to become a powerful hurricane.

On the morning of July 2, 2014, the International Space Station was flying 260 miles overhead when astronauts captured imagery of Tropical Storm Arthur. Using a Nikon D3S digital camera with a 19 mm wide-angle lens, the crew documented the storm as it moved north along the Florida coast at approximately 6 miles per hour. The system sat roughly 100 miles east-northeast from Cape Canaveral, Florida, while the Bahamas Islands appeared in the frame's lower right. The station was positioned roughly 260 miles above the surface during this observation. This specific imagery was part of the crew's routine collection of Earth observation targets.

The storm was in its early stages, having formed off southern Florida on July 1, 2014. While the ISS crew provided a visual overview, NASA's robotic assets provided technical depth. The Aqua satellite's MODIS instrument captured images on the afternoon of July 2, showing that Arthur's eye remained covered by clouds. By July 3, the system had intensified into a hurricane, with its clouds forming a tight circle measuring roughly 185 kilometers (115 miles) across. The storm's structure appeared significantly more organised by the following day. These satellite observations helped monitor the system's rapid intensification.

The evolution of Arthur was rapid. On the afternoon of July 3, the storm's maximum sustained winds reached 90 mph (150 km/h). Forecasters at the National Hurricane Center anticipated the system would strike or graze the Outer Banks of North Carolina as a Category 2 hurricane. Such orbital observations, ranging from human-operated cameras to infrared satellite data, are vital for tracking meteorological phenomena and providing scientists with high-resolution views of developing weather systems. Infrared imagery from Thursday revealed thunderstorms near the centre with temperatures around minus 53 degrees Celsius. These data points assist in tracking the storm's trajectory towards the North Carolina coast.

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