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

445

115

134

96

388

SALT RIVER
Etna nr, WY

APR-JUL
APR-SEP

365
455

114
114

139
140

89
86

319
399

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

APR-SEP
APR-JUL
APR-JUL

830
830
1400

114
122
115

127
144
134

100
100
95

730
678
1219

FALLS RIVER
Squirrel nr, ID (1)

APR-JUL

415

114

135

93

364

TETON RIVER
St. Anthony nr, ID

APR-JUL
APR-SEP

430
535

113
114

130
138

95
90

380
471

BIG LOST RIVER
Mackay Reservoir Inflow, ID

APR-JUL
APR-SEP

189
230

126
126

170
158

81
92

150
182

LITTLE LOST RIVER
Howe nr, ID

APR-SEP

50

116

135

98

43

PORTNEUF RIVER
Topaz, ID

MAR-SEP
APR-SEP

113
99

106
106

126

89

107
93

GOOSE CREEK
Oakley Res Inflow, ID

MAR-SEP

35

97

133

66

36

SALMON FALLS CREEK
San Jacinto nr, NV

MAR-SEP

82

85

118

58

96

BIG WOOD RIVER
Hailey, ID (1)

Magic Reservoir Inflow, ID

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

345
390
440
460

136
136
149
149

179
175
210
177

93
98
90
120

254
286
295
309