Isaac developed from Tropical Depression Nine in the central North
Isaac track on SST image of 27 September (232 Kb)
This image represents the average composite sea surface temperature (SST)
derived from NOAA satellite AVHRR data over the 7 days ending 27
September 2006. The averaging is done to remove clouds. The temperature
scale for SST is 22C to 32C. The track of Isaac is overlaid on this image.