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

77
51

96
96

115
117

75
77

80
53

UMATILLA RIVER
Gibbon nr, OR

Pendleton, OR

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

63
68
124
129

90
89
88
88

136
125
137
128

44
54
39
46

70
76
141
146

JOHN DAY RIVER
Service Creek, OR (1)

APR-SEP

700

85

149

23

821

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

APR-JUL
APR-SEP

97
101

84
84

143
142

24
27

116
120

N. F. JOHN DAY RIVER
Monument nr, OR

APR-JUL
APR-SEP

475
490

84
84

121
121

47
47

567
585

CRESCENT CREEK
Crescent Lake Inflow, OR

APR-SEP

16

79

133

33

21

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

APR-SEP
APR-SEP
APR-SEP

84
470
1710

95
89
90

124
100
112

67
77
67

88
529
1902

LITTLE DESCHUTES RIVER
LaPine nr, OR

APR-SEP

60

77

122

32

78

TUMALO CREEK
Bend nr, OR

APR-SEP

39

87

110

67

45

SQUAW CREEK
Sisters nr, OR

APR-SEP

43

90

106

74

48

CROOKED RIVER
Prineville Res Inflow, OR

MAR-JUL

112

65

115

16

171

OCHOCO CREEK
Ochoco Res Inflow, OR

MAR-JUL

19

60

121

0

33

WHITE RIVER
Tygh Valley blo, OR

APR-SEP

115

92

122

64

125