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

260

67

388

SALT RIVER
Etna nr, WY

APR-JUL
APR-SEP

215
270

67
68

86
83

49
53

319
399

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

APR-SEP
APR-JUL
APR-JUL

680
630
1080

93
93
89

100
108
103

86
77
75

730
678
1219

FALLS RIVER
Squirrel nr, ID (1)

APR-JUL

330

91

104

76

364

TETON RIVER
St. Anthony nr, ID

APR-JUL
APR-SEP

315
390

83
83

96
93

71
72

380
471

BIG LOST RIVER
Mackay Reservoir Inflow, ID

APR-JUL
APR-SEP

95
115

63
63

103
96

23
30

150
182

LITTLE LOST RIVER
Howe nr, ID

APR-SEP

37

86

43

PORTNEUF RIVER
Topaz, ID

MAR-SEP
APR-SEP

68
54

64
58

107
93

GOOSE CREEK
Oakley Res Inflow, ID

MAR-SEP

19

54

89

20

36

SALMON FALLS CREEK
San Jacinto nr, NV

MAR-SEP

46

48

85

10

96

BIG WOOD RIVER
Hailey, ID (1)

Magic Reservoir Inflow, ID

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

165
186
164
172

65
65
56
56

94
91
97
97

35
38
19
19

254
286
295
309