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Stories by Tim Wagner

Flash Flooding in American Samoa

The residents of American Samoa found themselves in the early morning hours of 20 November 2025, as strong maritime convection moved into the region. There is no radar in the area, so satellite observations are critical for operational awareness and nowcasting. The Band 13 infrared view on GOES-18 showed a... Read More

When True Color Is False

One of the most popular GOES products is the True Color RGB. There’s a lot to like about it: a constantly updating full color view of the planet, watching clouds swirl above sapphire seas and emerald forests. It can be positively mesmerizing to watch loops of this product, at least... Read More

Aurora Visible Over Much of Continental United States

A series of recent coronal mass ejections from the sun cased a severe geomagnetic storm on earth. On the evening of 11 November 2025 into the early morning of the 12th, this resulted in a very strong aurora borealis event visible across much of the continental United States. Reports came... Read More