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

153
1030
2200

115
114
115

124
123
132

106
105
97

133
903
1918

KACHESS RIVER
Kachess Lake Inflow, WA (1)

APR-SEP

140

117

127

106

120

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

APR-SEP

495

110

119

100

448

NACHES RIVER
Naches nr, WA

APR-SEP

915

109

127

92

837

BUMPING RIVER
Bumping Lake Inflow, WA

APR-SEP

150

112

128

95

134

TIETON RIVER
Rimrock Lake Inflow, WA (1)

APR-SEP

265

110

124

93

242

AHTANUM CREEKS
Tampico nr, WA (2)

APR-SEP

52

113

146

80

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

750
830
2670
3100
2810
3290
3590
3610
2030
1710
1770
2970
3320
3390
23100
23600
18100

92
92
80
80
79
79
81
78
63
56
57
52
53
52
77
78
84

104
102
97
97
95
96
93
91
87
82
85
76
80
76
89
89
101

81
82
64
64
63
63
69
66
38
30
29
27
25
28
65
66
68

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