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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PRECIPIT ATION-FREQUENCY CURVE USING ALL OA T A
AVAILA8LE THROUGH 1986

95 PERCENT CONFIDENCE LIMIT

'1986 ANNUAL MAXIMUM PRECIPITATION VALUE AND
YEAR--Year only &hown for larg-est 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 avaiiabl. through 1986

Using only data available through 1984

AREA INCLUDED 8ETWEEN 95 PERCENT
CONFIDENCE LIMITS:

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Using all data available through 1986

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AVERAGE RECURRENCE INTERVAL. IN YEARS

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Figure 4f.--Precipitation-frequency curves for 2-hour

duration, Pearson Type III distribution.

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