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

425

110

110

110

388

SALT RIVER
Etna nr, WY

APR-JUL
APR-SEP

350
435

110
109

129
124

91
94

319
399

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

APR-SEP
APR-JUL
APR-JUL

820
890
1430

112
131
117

119
147
132

105
117
104

730
678
1219

FALLS RIVER
Squirrel nr, ID (1)

APR-JUL

405

111

125

98

364

TETON RIVER
St. Anthony nr, ID

APR-JUL
APR-SEP

445
550

117
117

130
127

104
107

380
471

BIG LOST RIVER
Mackay Reservoir Inflow, ID

APR-JUL
APR-SEP

186
225

124
124

163
157

84
91

150
182

LITTLE LOST RIVER
Howe nr, ID

APR-SEP

50

116

116

116

43

PORTNEUF RIVER
Topaz, ID

MAR-SEP
APR-SEP

114
98

107
105

107
93

GOOSE CREEK
Oakley Res Inflow, ID

MAR-SEP

49

136

172

103

36

SALMON FALLS CREEK
San Jacinto nr, NV

MAR-SEP

89

93

130

55

96

BIG WOOD RIVER
Hailey, ID (1)

Magic Reservoir Inflow, ID

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

295
335
350
370

116
117
119
120

146
143
159
160

87
89
78
78

254
286
295
309