Missouri River Basin Precipitation and Snow Maps

Significant Missouri River Basin Rainfall Events
- Omaha District Events
Significant Missouri River Basin Plains Snow Events

Significant Missouri River Basin Rainfall Events

Omaha District Events

1940's	1950's	1960's	1970's	Recent Years
June 10, 1944	May 8, 1950	June 23, 1963	June 9-10, 1972	June 14, 1984
Sept 3-4, 1946	June 1, 1951	June 7-8. 1964	May 5-6, 1973	August 1, 1985
June 21-22, 1947	June 7, 1953	June 16-20, 1964	June 16-20, 1975
	June 7-8, 1953	June 15-17, 1965	June 28-30,1975
	June 26, 1955	Sept. 6-7, 1965	June 14-15, 1976
	August 1-2, 1959	August 12, 1966	Jul 31-Aug 2, 1976
		June 13-14, 1967
		June 20-21, 1967

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Significant Missouri River Basin Plains Snow Events

Snow Water Equivalent Maps

1940's	1950's	1960's	1970's	Recent Years
Mid-March 1948	Mid-March 1952	Mid-March 1960	March 6, 1972	March 1, 1997 AVG
Mid-February1949		Mid-March 1962	Mid-March 1975	March 1, 1997 WT AVG
		March 1, 1965	March 1, 1978	Mid-March 1997 WT AVG
		Mid-March 1969	Mid-February 1979

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Significant Missouri River Basin Plains Snow Events

Snow Water Equivalent Maps by Sub-Basin

1940's	1950's	1960's	1970's	Recent Years
Mid-March 1948	Mid-March 1952	Mid-March 1960	March 6, 1972	March 1, 1997 AVG
Mid-February1949		Mid-March 1962	Mid-March 1975	March 1, 1997 WT AVG
		March 1, 1965	March 1, 1978	Mid-March 1997 WT AVG
		Mid-March 1969	Mid-February 1979

WT=Weighted
>AVG=Average

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Significant Missouri River Basin Plains Snow Events

Snow Water Equivalent Comparison Maps

These images contrast the 1997 snow year to other years to show not only the change in amount, but also the change in spatial distribution of the 1997 snow event compared to other significant events. The areas where the SWE values are less than zero are represented by a grey scale the positive numbers are shown in color.

Date

1952-1997

1969-1997

1978-1997

Mar 1,1997
Mid-Mar 1997

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