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

102
68

128
128

144
153

111
104

80
53

UMATILLA RIVER
Gibbon nr, OR

Pendleton, OR

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

89
96
180
187

122
122
121
121

148
146
148
145

96
97
93
92

73
79
149
155

JOHN DAY RIVER
Service Creek, OR (1)

APR-SEP

705

82

116

47

865

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

APR-JUL
APR-SEP

94
98

76
77

110
109

43
45

123
128

N. F. JOHN DAY RIVER
Monument nr, OR

APR-JUL
APR-SEP

525
540

88
88

597
616

CRESCENT CREEK
Crescent Lake Inflow, OR

APR-SEP

17

84

114

55

21

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

APR-SEP
APR-SEP
APR-SEP

86
450
1800

92
85
93

125

108

60

78

93
528
1941

LITTLE DESCHUTES RIVER
LaPine nr, OR

APR-SEP

71

89

109

69

80

TUMALO CREEK
Bend nr, OR

APR-SEP

45

98

111

85

46

SQUAW CREEK
Sisters nr, OR

APR-SEP

48

98

114

82

49

CROOKED RIVER
Prineville Res Inflow, OR

MAR-JUL

95

52

91

12

184

OCHOCO CREEK
Ochoco Res Inflow, OR

MAR-JUL

20

57

103

11

35

WHITE RIVER
Tygh Valley blo, OR

APR-SEP

148

119

140

98

124