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

87
58

109
109

128
128

93
90

80
53

UMATILLA RIVER
Gibbon nr, OR

Pendleton, OR

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

85
92
168
180

116
116
115
118

156
153
158
158

77
89
73
84

73
79
146
152

JOHN DAY RIVER
Service Creek, OR (1)

APR-SEP

900

104

161

48

865

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

APR-JUL
APR-SEP

125
130

102
102

151
149

52
54

123
128

N. F. JOHN DAY RIVER
Monument nr, OR

APR-JUL
APR-SEP

585
605

98
98

139
139

68
68

597
616

CRESCENT CREEK
Crescent Lake Inflow, OR

APR-SEP

21

100

139

61

21

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

APR-SEP
APR-SEP
APR-SEP

100
525
1930

119
99
99

133
110
119

82
90
79

84
528
1941

LITTLE DESCHUTES RIVER
LaPine nr, OR

APR-SEP

82

103

140

65

80

TUMALO CREEK
Bend nr, OR

APR-SEP

52

113

141

90

46

SQUAW CREEK
Sisters nr, OR

APR-SEP

57

116

136

97

49

CROOKED RIVER
Prineville Res Inflow, OR

MAR-JUL

177

96

139

53

184

OCHOCO CREEK
Ochoco Res Inflow, OR

MAR-JUL

37

103

156

51

36

WHITE RIVER
Tygh Valley blo, OR

APR-SEP

150

124

144

98

121