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

130
77

163
145

179
170

146
121

80
53

UMATILLA RIVER
Gibbon nr, OR

Pendleton, OR

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

94
102
156
164

134
134
111
112

161
159
140
140

107
109
82
82

70
76
141
146

JOHN DAY RIVER
Service Creek, OR (1)

APR-SEP

1070

130

167

94

821

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

APR-JUL
APR-SEP

145
150

125
125

160
159

90
91

116
120

N. F. JOHN DAY RIVER
Monument nr, OR

APR-JUL
APR-SEP

655
675

116
115

115

115

567
585

CRESCENT CREEK
Crescent Lake Inflow, OR

APR-SEP

33

157

186

129

21

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

APR-SEP
APR-SEP
APR-SEP

147
715
2260

167
135
119

201
135
135

133
135
104

88
529
1902

LITTLE DESCHUTES RIVER
LaPine nr, OR

APR-SEP

129

165

186

145

78

TUMALO CREEK
Bend nr, OR

APR-SEP

64

142

156

129

45

SQUAW CREEK
Sisters nr, OR

APR-SEP

68

142

158

125

48

CROOKED RIVER
Prineville Res Inflow, OR

MAR-JUL

250

146

190

104

171

OCHOCO CREEK
Ochoco Res Inflow, OR

MAR-JUL

47

142

191

94

33

WHITE RIVER
Tygh Valley blo, OR

APR-SEP

157

126

146

105

125