National Weather Service United States Department of Commerce

KEOX Rainfall Estimates vs. Gage Reports

Figure 7: The KEOX radar showed a slightly negative bias, with radar estimated totals lower than gage totals at 61% of the stations. Negative and positive numbers appear to be evenly dispersed throughout the radar umbrella, except for two areas. An area over southwest Alabama, just west of the maximum rainfall, shows mostly negative values. This would likely be caused by the radar beam energy being absorbed by the heavy rainfall. Another area is located north-northwest of the radar near the 125 nmi. range limit. Radar estimates of six inches or more were not supported by gage reports or other radar estimates.