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)

GREY'S RIVER
Palisades abv, WY

APR-SEP

375

97

125

68

388

SALT RIVER
Etna nr, WY

APR-JUL
APR-SEP

305
380

96
95

132
129

60
62

319
399

HENRYS FORK
Ashton nr, ID
St. Anthony, ID
Rexburg nr, ID

APR-SEP
APR-JUL
APR-JUL

740
705
1200

101
104
98

116
133
125

86
74
72

730
678
1219

FALLS RIVER
Squirrel nr, ID (1)

APR-JUL

380

104

128

81

364

TETON RIVER
St. Anthony nr, ID

APR-JUL
APR-SEP

360
445

95
94

118
115

70
75

380
471

BIG LOST RIVER
Mackay Reservoir Inflow, ID

APR-JUL
APR-SEP

163
197

109
108

157
148

60
66

150
182

LITTLE LOST RIVER
Howe nr, ID

APR-SEP

44

102

124

81

43

PORTNEUF RIVER
Topaz, ID

MAR-SEP
APR-SEP

103
90

96
97

121

73

107
93

GOOSE CREEK
Oakley Res Inflow, ID

MAR-SEP

30

83

129

47

36

SALMON FALLS CREEK
San Jacinto nr, NV

MAR-SEP

78

81

124

47

96

BIG WOOD RIVER
Hailey, ID (1)

Magic Reservoir Inflow, ID

APR-JUL
APR-SEP
APR-JUL
APR-SEP

245
275
280
295

96
96
95
95

157
150
180
141

36
43
16
49

254
286
295
309