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

111

83

388

SALT RIVER
Etna nr, WY

APR-JUL
APR-SEP

315
395

99
99

121
119

77
79

319
399

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

APR-SEP
APR-JUL
APR-JUL

690
655
1140

95
98
94

107
118
111

82
80
78

730
678
1219

FALLS RIVER
Squirrel nr, ID (1)

APR-JUL

325

89

108

71

364

TETON RIVER
St. Anthony nr, ID

APR-JUL
APR-SEP

370
460

97
98

112
109

82
85

380
471

BIG LOST RIVER
Mackay Reservoir Inflow, ID

APR-JUL
APR-SEP

126
153

84
84

127
107

41
59

150
182

LITTLE LOST RIVER
Howe nr, ID

APR-SEP

37

86

103

69

43

PORTNEUF RIVER
Topaz, ID

MAR-SEP
APR-SEP

112
100

105
108

125

90

107
93

GOOSE CREEK
Oakley Res Inflow, ID

MAR-SEP

30

83

114

56

36

SALMON FALLS CREEK
San Jacinto nr, NV

MAR-SEP

71

74

106

47

96

BIG WOOD RIVER
Hailey, ID (1)

Magic Reservoir Inflow, ID

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

188
210
188
197

74
73
64
64

108
105
110
82

40
44
17
45

254
286
295
309