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

124
72

155
136

170
158

140
113

80
53

UMATILLA RIVER
Gibbon nr, OR

Pendleton, OR

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

90
98
147
154

129
129
104
105

154
153
132
133

103
105
77
78

70
76
141
146

JOHN DAY RIVER
Service Creek, OR (1)

APR-SEP

1070

130

166

96

821

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

APR-JUL
APR-SEP

145
150

125
125

158
157

92
93

116
120

N. F. JOHN DAY RIVER
Monument nr, OR

APR-JUL
APR-SEP

690
710

122
121

121

121

567
585

CRESCENT CREEK
Crescent Lake Inflow, OR

APR-SEP

31

148

176

119

21

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

APR-SEP
APR-SEP
APR-SEP

142
710
2250

161
134
118

193
134
133

130
134
104

88
529
1902

LITTLE DESCHUTES RIVER
LaPine nr, OR

APR-SEP

124

159

177

141

78

TUMALO CREEK
Bend nr, OR

APR-SEP

66

147

158

136

45

SQUAW CREEK
Sisters nr, OR

APR-SEP

69

144

158

129

48

CROOKED RIVER
Prineville Res Inflow, OR

MAR-JUL

255

149

190

109

171

OCHOCO CREEK
Ochoco Res Inflow, OR

MAR-JUL

43

130

176

85

33

WHITE RIVER
Tygh Valley blo, OR

APR-SEP

157

126

145

106

125