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Stories by Tim Wagner

American Samoa’s Wettest Year Gets Wetter

2025 has proven to be an atypically wet year for American Samoa. The cumulative precipitation chart backs that up: going back to 1 January, the total rainfall at Pago Pago has been the highest on record up to this date, and total rainfall is 70% higher than a normal year.July... Read More

Welcome to Space, Meteosat 13!

At 5:04 PM local time (2104 UTC) on 1 July 2025, the newest member of the geostationary ring was launched into orbit. The MTG-S1 satellite (to be renamed Meteosat 13 upon commissioning) represents a first for EUMETSAT: a hyperspectral sounder in geostationary orbit. While EUMETSAT has long supported hyperspectral sounders... Read More

Elevated Optical Depth from Two Very Different Sources

The GOES-19 view of the Northern Hemisphere on the morning of 3 June 2025 showed enhanced aerosol optical depth (AOD) across much of its domain. Large regions of elevated AOD are ceen in the eastern half of the continental United States extending out into the western Atlantic Ocean, while the... Read More