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.


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