GOES-18 imagery/products, shown below, depict an area of enhanced instability and moisture centered on American Samoa, and convection develops and persists over/around the main island of American Samoa, Tutuila. The convection appears to form along an east-west line that drifts over the island between 0400 and 0800 UTC.Total Precipitable Water... Read More

Dust RGB imagery (here is a larger version) from GK2A at 1720 UTC on 5 May 2025, above, show the distinct bright pink signature of dust along the east coast of China. Airmass RGB imagery (larger version) at the same time shows a rust/orange color as might be expected from a... Read More

GOES-19 True-Color animations on 5 May and 4 May 2025 (from the CSPP Geosphere site) show a circulation cut off from the main westerlies and slowly meandering across the Ohio River Valley. The system has become a bit more symmetric on the 5th as it separates more completely from the front along the east... Read More

When Himawari-10 launches (currently scheduled for late 2028/early 2029), it will carry the GHMS, the Geostationary HiMawari Sounder, planned to give hourly sounder imagery (with more frequent observations — about 4 per hour — in smaller targetable domains, including one over Japan.) The Sounder will observe with about 4-km spatial resolution... Read More