The weekly PHC maps were created by calculating the percentage of time during the week that each 10 km x 10 km pixel in the GMS IR image had a value of 235 K or less. PHC maps were constructed for the region between 20 deg S and 20 deg N for each week during the period 4 October 1992-27 February 1993. The PHC values (in units of percent) are color coded in each map. Additionally, ECMWF weekly mean 850 hPa winds at 2.5 deg x 2.5 deg resolution are overlaid on each map. Wind vectors are scaled such that a 20 m/s wind is represented by a vector that would be 2.5 deg in length at the center of the map. The patterns of cold cloudiness illustrated in the weekly PHC maps are an indicator of the general locations of mesoscale convective systems and other convection during the week. The weekly PHC maps are displayed using SatView, an interactive display and analysis tool for satellite and other meteorological data developed and maintained by the Department of Atmospheric Sciences, University of Washington.