radar.bloom: Slow Scan. Hurricane Celia, GOES-11 infrared, read the way a satellite reads it: one line at a time, top to bottom. Here one full scan takes the whole 12 s loop, so each band of the storm is a different moment, and the bright seam walks down through the eye once per loop. Sound: one APT-style 2400 Hz sync tone as the seam crosses the eye, then a granular thunder cloud. Otherwise nearly silent. Source NOAA, public domain. · Simopia