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

91
61

114
115

133
157

97
74

80
53

UMATILLA RIVER
Gibbon nr, OR

Pendleton, OR

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

89
97
180
187

127
128
128
128

173
163
177
167

81
92
79
85

70
76
141
146

JOHN DAY RIVER
Service Creek, OR (1)

APR-SEP

965

118

180

55

821

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

APR-JUL
APR-SEP

127
132

109
110

169
167

50
52

116
120

N. F. JOHN DAY RIVER
Monument nr, OR

APR-JUL
APR-SEP

605
625

107
107

144

70

567
585

CRESCENT CREEK
Crescent Lake Inflow, OR

APR-SEP

25

119

180

80

21

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

APR-SEP
APR-SEP
APR-SEP

130
660
2110

148
125
111

176
136
134

119
113
89

88
529
1902

LITTLE DESCHUTES RIVER
LaPine nr, OR

APR-SEP

95

122

167

77

78

TUMALO CREEK
Bend nr, OR

APR-SEP

55

122

147

103

45

SQUAW CREEK
Sisters nr, OR

APR-SEP

59

123

139

107

48

CROOKED RIVER
Prineville Res Inflow, OR

MAR-JUL

205

120

170

70

171

OCHOCO CREEK
Ochoco Res Inflow, OR

MAR-JUL

40

121

182

60

33

WHITE RIVER
Tygh Valley blo, OR

APR-SEP

143

114

144

86

125