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
50

98
94

114
119

81
70

80
53

UMATILLA RIVER
Gibbon nr, OR

Pendleton, OR

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

57
62
118
121

81
82
84
83

109
107
113
114

54
57
55
55

70
76
141
146

JOHN DAY RIVER
Service Creek, OR (1)

APR-SEP

565

69

105

32

821

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

APR-JUL
APR-SEP

82
85

71
71

106
105

35
37

116
120

N. F. JOHN DAY RIVER
Monument nr, OR

APR-JUL
APR-SEP

370
380

65
65

93
93

38
38

567
585

CRESCENT CREEK
Crescent Lake Inflow, OR

APR-SEP

7

36

65

8

21

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

APR-SEP
APR-SEP
APR-SEP

51
310
1390

58
59
73

92
65
89

24
54
58

88
529
1902

LITTLE DESCHUTES RIVER
LaPine nr, OR

APR-SEP

33

42

63

22

78

TUMALO CREEK
Bend nr, OR

APR-SEP

33

73

87

60

45

SQUAW CREEK
Sisters nr, OR

APR-SEP

35

73

90

56

48

CROOKED RIVER
Prineville Res Inflow, OR

MAR-JUL

58

34

77

0

171

OCHOCO CREEK
Ochoco Res Inflow, OR

MAR-JUL

12

39

88

0

33

WHITE RIVER
Tygh Valley blo, OR

APR-SEP

73

58

79

38

125