SSM/I rain rates and storm width for the TRaP product were generated from a 02:17 UTC (21:17 CDT) pass on the 27th.
The mean satellite rain rate (Ravg) computed for Georges at this time was 0.34 in/hr
(8.6 mm/hr). Multiplying Ravg by Georges' areal rain width D (273
nautical miles, 505 km) along the track and then dividing by the GOES estimate of Georges' motion V
(8 knots, 15 km/hr), yields a rainfall potential (TRaP) of 11.6 inches (295 mm).