FLOOD00005

• County: Statewide
• Title: Precipitation Records and Flood-Producing Storms in Cheyenne Wyoming
• Date: 10/23/2003
• Prepared For: Cheyenne
• Floodplain - Doc Type: Educational/Technical/Reference Information

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PRECIPITATION-FREQUENCY CURVE USING ALL DATA
AVAILA8LE THROUGH 1986

95 PERCENT CONFIDENCE LIMIT

-1985 ANNUAL MAXIMUM PRECIPITATION VALUE AND
YEAR--Year only shown for largest storms.
only selected data points shown for recurrence
intervals less than 5 years to increase
readability

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AVERAGE RECURRENCE INTERVAL, IN YEARS

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PRECIPIT A TION-FREQUENCY CURVE,
Using all data available through 1986
Using only data available through 1984
AREA INCLUDED BETWEEN 95 PERCENT
CONFIDENCE LIMIT S.

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AVERAGE RECURRENCE INTERVAL, IN YEARS

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Figure 4b.--Precipitation-frequency curves for 1 Q-minute

duration, Pearson Type III distribution.

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