A NASA satellite spotted this strangely prominent pattern of long, sinuous clouds over the Pacific

Noted: Just to make sure, I checked in by email with Scott Bachmeier, a research meteorologist with the University of Wisconsin’s Cooperative Institute for Meteorological Satellite Studies. “Those are indeed ship tracks — a few cases are documented on our blog,” he wrote back. For more imagery, make sure to click on that link to the excellent CIMSS satellite blog.