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<br /> 1975
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<br />
<br />
<br />
<br />CHRONOLOGY OF THE 1976-77 DROUGHT
<br />
<br />65
<br />
<br />Arroyo Seeo near Pasadena, Calif
<br />
<br />The maximum accumulated deficiency for the 26
<br />month period, October 1975 to November 1977,
<br />iseqllivalent to thc Ilorrnal runoff for 1.6 years.
<br />Runoff was below normal for 24 of the 26 months
<br />
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<br />ill
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<br /> 1975
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<br />, ~
<br /> o~
<br /> 1975
<br />:' +200
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<br />0
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<br />U u
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<br />~ .0
<br /> o~
<br /> 1975
<br />
<br />North Fork American River at
<br />North Fork Dam, Calif
<br />
<br />The maximum accumulated deficiency for the 27 month
<br />period, October 1975 to December 1977, is equiv.
<br />alent to the normal runoff for 1.7 years. Runoff
<br />was below normal for 26 consecutive months
<br />
<br />
<br />o
<br />~
<br />
<br /><.So::
<br />.0
<br />o~
<br />
<br /><.S 0:
<br />. 0
<br />o~
<br />
<br />1976
<br />
<br />1977
<br />
<br />
<br />
<br />~ g
<br />0"
<br />
<br />~ g
<br />o~
<br />
<br />ill
<br />C
<br />~
<br />
<br />1976
<br />
<br />1977
<br />
<br />Kings River above North Fork,
<br />near Trimmer, Calif
<br />The maximum accumulated deficiency for the 27
<br />month period, October 1975 to December 1977,
<br />is equivalent to the normal runoff for 1.4 years.
<br />Runoff was below normal for 24 of the 27 months
<br />
<br />
<br />c
<br />o
<br />~
<br />
<br />~ g
<br />o~
<br />
<br />.
<br />~
<br />
<br />Napa River near St. Helena, Calif
<br />The maximum accumulated deficiency for the 27
<br />month period,October 1975toDecember 1977,
<br />is equivalent to the normal runoff for 2.0 years.
<br />Runoff was below normal for 26 of the 27 months
<br />
<br />.
<br />~
<br />
<br />~ g
<br />o~
<br />
<br />g g
<br />o~
<br />
<br />1976
<br />
<br />1977
<br />
<br />c
<br />o
<br />
<br />1976
<br />
<br />1977
<br />
<br />Sacramento River at Delta, Calif
<br />The maximum accumulated deficiency for the 26
<br />month period, October 1975 to November 1977,
<br />is equivalent to the normal runoff for 1.4 years.
<br />Runoff was below normal for 23 consecutive
<br />months and for 250f the 26 months
<br />
<br />ill
<br />C
<br />~
<br />
<br />U 0:
<br />ill "
<br />o~
<br />
<br />c
<br />o
<br />~
<br />
<br />Salmon River at Somes Bar, Calif.
<br />The maximum accumulated deficiency for the 26
<br />month period, October 1975 to November 1977,
<br />is equivalent to the normal runoff for 1,1 years.
<br />Runoff was below normal for 21 of the 26 months.
<br />
<br />
<br />ill
<br />o
<br />o
<br />~
<br />
<br /><.So:
<br />.0
<br />o~
<br />
<br /><.So:
<br />. "
<br />o~
<br />
<br />1976
<br />
<br />1977
<br />
<br />.
<br />c
<br />~
<br />
<br />1976
<br />
<br />1977
<br />
<br />Figure 26. Trends in streamflow at selected sites in California, October 1975 to January 1978.
<br />
<br />cumulated departure from normal runoff, in
<br />thousands of acre-feet, by months. A down-
<br />ward slope of the line for any period indicates
<br />deficient flow in that period. The 26- or 27-
<br />
<br />month period was based upon the month, No-
<br />vember or December 1977, when the maximum
<br />deficiency occurred. This is the lowest point
<br />on each graph.
<br />
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