Stream and Station

Most
Probable
Forecast
(1000 AF)

Most
Probable
Forecast
(% of Avg)

Reasonable
Maximum
(% of Avg)

Reasonable
Minimum
(% of Avg)

30 Year
(1961-1990)
Avg Runoff
(1000 AF)

S.F. WALLA WALLA RIVER
Milton nr, OR

MAR-SEP
APR-JUL

86
53

108
100

123
123

93
77

80
53

UMATILLA RIVER
Gibbon nr, OR

Pendleton, OR

APR-JUL
APR-SEP
APR-JUL APR-SEP

66
72
133
138

94
95
94
95

120
118
121
122

69
71
67
67

70
76
141
146

JOHN DAY RIVER
Service Creek, OR (1)

APR-SEP

745

91

125

56

821

M. F. JOHN DAY RIVER
Ritter, OR (1)

APR-JUL
APR-SEP

111
115

96
96

128
128

63
64

116
120

N. F. JOHN DAY RIVER
Monument nr, OR

APR-JUL
APR-SEP

530
545

93
93

567
585

CRESCENT CREEK
Crescent Lake Inflow, OR

APR-SEP

25

119

148

91

21

DESCHUTES RIVER
Crane Prairie Inflow, OR
Benham Falls, OR
Moody, OR

APR-SEP
APR-SEP
APR-SEP

104
595
1980

118
112
104

150

118

86

89

88
529
1902

LITTLE DESCHUTES RIVER
LaPine nr, OR

APR-SEP

83

106

124

88

78

TUMALO CREEK
Bend nr, OR

APR-SEP

44

98

109

87

45

SQUAW CREEK
Sisters nr, OR

APR-SEP

48

100

115

85

48

CROOKED RIVER
Prineville Res Inflow, OR

MAR-JUL

152

89

129

48

171

OCHOCO CREEK
Ochoco Res Inflow, OR

MAR-JUL

25

76

121

29

33

WHITE RIVER
Tygh Valley blo, OR

APR-SEP

120

96

115

77

125