Stream and Station

Most
Probable
Forecast
(1000 AF)

Most
Probable
Forecast
(% of Avg)

Reasonable
Maximum
(% of Avg)

Reasonable
Minimum
(% of Avg)

30 Year
(1971-2000)
Avg Runoff
(1000 AF)

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

APR-SEP
APR-SEP
APR-SEP

146
950
2070

110
105
103

129
120
120

90
90
88

133
903
2014

KACHESS RIVER
Kachess Lake Inflow, WA (1)

APR-SEP

125

104

123

86

120

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

APR-SEP

470

105

120

89

448

NACHES RIVER
Naches nr, WA

APR-SEP

835

100

115

85

837

BUMPING RIVER
Bumping Lake Inflow, WA

APR-SEP

145

108

130

90

134

TIETON RIVER
Rimrock Lake Inflow, WA (1)

APR-SEP

245

101

120

85

242

AHTANUM CREEKS
Tampico nr, WA (2)

APR-SEP

45

98

138

81

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

700
775
2790
3250
2960
3450
3830
3860
2290
1910
1990
4090
4570
4670
28200
29100
20800

86
86
84
84
83
83
86
84
71
63
64
71
72
72
94
96
97

107
107
106
101
101
109
99
114
101
105
120
116
119
125
126
140
143

65
65
61
61
65
65
64
48
28
24
24
22
29
25
63
65
53

815
904
3331
3875
3561
4159
4428
4604
3242
3045
3092
5765
6313
6493
30020
30370
21550