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)

YAKIMA RIVER
Keechelus Lake Inflow, WA (1)
Cle Elum, WA
Parker nr, WA

APR-SEP
APR-SEP
APR-SEP

174
1140
2580

129
125
129

138
133
146

120
116
112

135
915
1994

KACHESS RIVER
Kachess Lake Inflow, WA (1)

APR-SEP

147

125

135

114

118

CLE ELUM RIVER
Cle Elum Lake Inflow, WA (1)

APR-SEP

570

127

136

117

448

NACHES RIVER
Naches nr, WA

APR-SEP

1140

137

154

120

832

BUMPING RIVER
Bumping Lake Inflow, WA

APR-SEP

184

135

151

118

136

TIETON RIVER
Rimrock Lake Inflow, WA (1)

APR-SEP

285

120

137

103

237

AHTANUM CREEKS
Tampico nr, WA (2)

APR-SEP

62

135

167

102

46

SNAKE RIVER
Jackson Lake Inflow, WY (1)

Palisades Res Inflow, ID (1)

Heise nr, ID

Shelley nr, ID (1)
Blackfoot nr, ID (1)
American Falls Res Inflow, ID (1)
King Hill, ID (1)
Murphy nr, ID (1)
Weiser, ID (1)
Brownlee Res Inflow, ID (3)
Hells Canyon, ID (1)
Lower Granite Res Inflow, WA (1)

APR-JUL
APR-SEP
APR-JUL
APR-SEP
APR-JUL
APR-SEP
APR-JUL
APR-JUL
APR-JUL
APR-JUL
APR-JUL
APR-JUL
APR-JUL
APR-JUL
JAN-JUL
FEB-SEP
APR-JUL

910
1010
3790
4420
4040
4740
5380
5420
3900
3460
3550
6830
7510
7670
35700
36200
25400

117
116
117
117
117
117
123
122
127
119
119
125
130
125
120
120
117

129
128
135
134
134
134
135
135
154
147
149
151
159
151
132
132
134

105
106
101
101
101
101
110
109
101
92
90
99
100
99
108
108
101

781
869
3226
3763
3451
4049
4388
4444
3066
2896
2980
5465
5794
6129
29740
30220
21650