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

157
1060
2280

118
117
119

127
126
137

108
107
100

133
903
1918

KACHESS RIVER
Kachess Lake Inflow, WA (1)

APR-SEP

145

121

132

109

120

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

APR-SEP

510

114

124

104

448

NACHES RIVER
Naches nr, WA

APR-SEP

935

112

130

93

837

BUMPING RIVER
Bumping Lake Inflow, WA

APR-SEP

153

114

132

96

134

TIETON RIVER
Rimrock Lake Inflow, WA (1)

APR-SEP

270

112

128

93

242

AHTANUM CREEKS
Tampico nr, WA (2)

APR-SEP

51

111

146

76

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

670
745
2710
3150
2870
3360
3660
3680
2100
1780
1870
3130
3580
3650
24200
24800
19200

82
82
81
81
81
81
83
80
65
58
60
54
57
56
81
82
89

94
93
99
99
99
99
97
94
94
87
91
82
87
83
95
95
109

69
71
64
63
63
63
68
66
35
29
30
27
27
29
67
68
70

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