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

78
52

98
98

133
138

97
98

80
53

UMATILLA RIVER
Gibbon nr, OR

Pendleton, OR

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

77
83
154
161

110
109
109
110

156
145
160
149

64
73
60
67

70
76
141
146

JOHN DAY RIVER
Service Creek, OR (1)

APR-SEP

815

99

162

37

821

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

APR-JUL
APR-SEP

116
120

100
100

159
158

41
43

116
120

N. F. JOHN DAY RIVER
Monument nr, OR

APR-JUL
APR-SEP

540
555

95
95

132
132

58
58

567
585

CRESCENT CREEK
Crescent Lake Inflow, OR

APR-SEP

18

86

134

39

21

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

APR-SEP
APR-SEP
APR-SEP

103
505
1880

117
95
99

138
108
121

84
85
77

88
529
1902

LITTLE DESCHUTES RIVER
LaPine nr, OR

APR-SEP

74

95

136

49

78

TUMALO CREEK
Bend nr, OR

APR-SEP

50

111

133

89

45

SQUAW CREEK
Sisters nr, OR

APR-SEP

53

110

124

92

48

CROOKED RIVER
Prineville Res Inflow, OR

MAR-JUL

161

94

143

44

171

OCHOCO CREEK
Ochoco Res Inflow, OR

MAR-JUL

32

97

158

36

33

WHITE RIVER
Tygh Valley blo, OR

APR-SEP

144

115

145

87

125