National Weather Service United States Department of Commerce


Table 2.  Maximum Expected Rainfall for the Memphis CWA (in inches).



                                       RETURN PERIOD


RAIN          1 YR        2 YR        5 YR        10 YR       25 YR       50 YR      100 YR 
DURATION


3 Hour      1.80-2.20   2.25-2.50   2.75-3.25   3.00-3.50   3.50-4.00   4.00-4.50   4.25-5.00

6 Hour      2.25-2.50   2.75-3.00   3.30-3.75   3.75-4.25   4.25-5.00   4.75-5.50   5.00-6.00

12 Hour     2.75-3.00   3.25-3.75   3.75-4.50   4.30-5.25   4.75-6.00   5.50-6.50   6.00-7.50

24 Hour     3.10-3.50   3.50-4.25   4.50-5.30   5.00-6.00   5.75-7.00   6.50-7.75   7.00-8.50


Source: 'Rainfall Frequency Atlas of the United States', Technical Paper #40, Weather Bureau,    
         May 1961.