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

62
42

78
79

98
109

66
49

80
53

UMATILLA RIVER
Gibbon nr, OR

Pendleton, OR

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

52
56
96
106

74
74
68
73

109
104
105
108

40
43
32
34

70
76
141
146

JOHN DAY RIVER
Service Creek, OR (1)

APR-SEP

515

63

116

09

821

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

APR-JUL
APR-SEP

74
77

64
64

110
109

17
19

116
120

N. F. JOHN DAY RIVER
Monument nr, OR

APR-JUL
APR-SEP

380
390

67
67

67
101

67
32

567
585

CRESCENT CREEK
Crescent Lake Inflow, OR

APR-SEP

10

48

185

20

21

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

APR-SEP
APR-SEP
APR-SEP

53
370
1520

60
70
80

82

78

45

62

88
529
1902

LITTLE DESCHUTES RIVER
LaPine nr, OR

APR-SEP

40

51

75

23

78

TUMALO CREEK
Bend nr, OR

APR-SEP

34

76

101

53

45

SQUAW CREEK
Sisters nr, OR

APR-SEP

37

77

93

62

48

CROOKED RIVER
Prineville Res Inflow, OR

MAR-JUL

90

53

83

31

171

OCHOCO CREEK
Ochoco Res Inflow, OR

MAR-JUL

14

42

83

05

33

WHITE RIVER
Tygh Valley blo, OR

APR-SEP

83

66

88

46

125