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

118
124

81
85

80
53

UMATILLA RIVER
Gibbon nr, OR

Pendleton, OR

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

70
76
142
146

100
100
101
100

146
136
149
140

54
64
52
58

70
76
141
146

JOHN DAY RIVER
Service Creek, OR (1)

APR-SEP

780

95

158

32

821

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

APR-JUL
APR-SEP

104
108

90
90

149
148

30
33

116
120

N. F. JOHN DAY RIVER
Monument nr, OR

APR-JUL
APR-SEP

515
530

91
91

128

54

567
585

CRESCENT CREEK
Crescent Lake Inflow, OR

APR-SEP

21

100

155

55

21

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

APR-SEP
APR-SEP
APR-SEP

87
500
1790

99
95
94

127
106
116

71
83
72

88
529
1902

LITTLE DESCHUTES RIVER
LaPine nr, OR

APR-SEP

70

90

135

45

78

TUMALO CREEK
Bend nr, OR

APR-SEP

39

87

110

67

45

SQUAW CREEK
Sisters nr, OR

APR-SEP

41

85

101

69

48

CROOKED RIVER
Prineville Res Inflow, OR

MAR-JUL

112

65

115

16

171

OCHOCO CREEK
Ochoco Res Inflow, OR

MAR-JUL

23

70

130

8

33

WHITE RIVER
Tygh Valley blo, OR

APR-SEP

115

92

122

64

125