Using JavaScript you can control animations of the last ~1 1/2 days of half hourly IR images near East Pacific+Continental US+western Atlantic. You will need the browser automatically load images and JavaScript enabled.

Satellite-derived half-hourly IR temperatures for the ~ 1 1/2 days.  Green shading indicates warmer cloud-top temperatures and possible stratiform precipitation and red shading indicates cold cloud-top temperatures and possible convective activity.  IR temperatures are obtained from a merge of GOES 8, METEOSAT 7, and METEOSAT 5 satellites, and have latitudinally and seasonally dependent zenith angle corrections.