Time series of tropical Atlantic and East Pacific GOES-12 IR imagery, every 12 hours (at
00Z and 12Z) from 10-20°N, newest on top. Updated 8am and 8pm
MDT, and only during the May-November timeframe. Images courtesy of
NRL-MRY. Please direct questions or comments about this page
to Brian McNoldy.
To estimate the speed of a propagating feature, if it moves toward the
left in subsequent frames (looking upward) at 10°/frame, that's
If it takes two frames to traverse 10°, it's moving at about 25kts,