Stream and Station

Most
Probable
Forecast
(1000 AF)

Most
Probable
Forecast
(% of Avg)

Reasonable
Maximum
(% of Avg)

Reasonable
Minimum
(% of Avg)

30 Year
(1971 - 2000)
Avg Runoff
(1000 AF)

S.F. WALLA WALLA RIVER
Milton nr, OR

MAR-SEP
APR-JUL

82
52

103
98

120
112

85
85

80
53

UMATILLA RIVER
Gibbon nr, OR

Pendleton, OR

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

76
82
153
157

104
104
103
101

129
129
136
134

79
79
70
68

73
79
149
155

JOHN DAY RIVER
Service Creek, OR (1)

APR-SEP

720

83

124

43

865

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

APR-JUL
APR-SEP

99
103

80
80

107
107

54
54

123
128

N. F. JOHN DAY RIVER
Monument nr, OR

APR-JUL
APR-SEP

470
485

79
79

105
105

53
53

597
616

CRESCENT CREEK
Crescent Lake Inflow, OR

APR-SEP

17

81

107

55

21

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

APR-SEP
APR-SEP
APR-SEP

84
450
1790

90
85
92

104
91
108

77
80
76

93
528
1941

LITTLE DESCHUTES RIVER
LaPine nr, OR

APR-SEP

70

88

108

68

80

TUMALO CREEK
Bend nr, OR

APR-SEP

48

104

122

87

46

SQUAW CREEK
Sisters nr, OR

APR-SEP

52

106

120

92

49

CROOKED RIVER
Prineville Res Inflow, OR

MAR-JUL

118

64

105

23

184

OCHOCO CREEK
Ochoco Res Inflow, OR

MAR-JUL

25

71

120

23

35

WHITE RIVER
Tygh Valley blo, OR

APR-SEP

115

115

135

95

124