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

82
53

103
100

117
123

88
77

80
53

UMATILLA RIVER
Gibbon nr, OR

Pendleton, OR

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

62
67
129
136

89
88
91
93

114
112
119
121

63
64
64
64

70
76
141
146

JOHN DAY RIVER
Service Creek, OR (1)

APR-SEP

435

53

88

18

821

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

APR-JUL
APR-SEP

68
71

59
59

91
91

26
28

116
120

N. F. JOHN DAY RIVER
Monument nr, OR

APR-JUL
APR-SEP

330
340

58
58

75
75

41
41

567
585

CRESCENT CREEK
Crescent Lake Inflow, OR

APR-SEP

9

44

73

16

21

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

APR-SEP
APR-SEP
APR-SEP

48
305
1370

55
58
72

86
63
87

22
53
58

88
529
1902

LITTLE DESCHUTES RIVER
LaPine nr, OR

APR-SEP

30

38

56

21

78

TUMALO CREEK
Bend nr, OR

APR-SEP

32

71

82

60

45

SQUAW CREEK
Sisters nr, OR

APR-SEP

35

73

88

58

48

CROOKED RIVER
Prineville Res Inflow, OR

MAR-JUL

48

28

69

0

171

OCHOCO CREEK
Ochoco Res Inflow, OR

MAR-JUL

8

25

70

0

33

WHITE RIVER
Tygh Valley blo, OR

APR-SEP

69

55

74

36

125