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

143
930
2040

108
103
106

126
114
120

89
92
92

133
903
1918

KACHESS RIVER
Kachess Lake Inflow, WA (1)

APR-SEP

122

102

118

85

120

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

APR-SEP

460

103

114

91

448

NACHES RIVER
Naches nr, WA

APR-SEP

820

98

112

84

837

BUMPING RIVER
Bumping Lake Inflow, WA

APR-SEP

141

105

122

88

134

TIETON RIVER
Rimrock Lake Inflow, WA (1)

APR-SEP

245

101

116

86

242

AHTANUM CREEKS
Tampico nr, WA (2)

APR-SEP

46

100

138

62

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

655
725
2560
2980
2710
3170
3540
3560
1970
1840
1930
3630
4090
4180
25700
26400
19700

80
80
77
77
76
76
80
77
61
60
62
63
65
64
86
87
91

101
100
95
95
91
91
99
96
97
95
99
105
101
102
110
111
125

59
60
59
59
61
61
61
58
24
26
26
21
28
27
61
63
58

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