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

280

72

101

44

388

SALT RIVER
Etna nr, WY

APR-JUL
APR-SEP

230
285

72
71

108
105

37
38

319
399

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

APR-SEP
APR-JUL
APR-JUL

620
565
980

85
83
80

100
114
101

70
54
59

730
678
1219

FALLS RIVER
Squirrel nr, ID (1)

APR-JUL

310

85

109

62

364

TETON RIVER
St. Anthony nr, ID

APR-JUL
APR-SEP

300
370

79
79

104
108

54
54

380
471

BIG LOST RIVER
Mackay Reservoir Inflow, ID

APR-JUL
APR-SEP

91
110

61
60

109
101

12
19

150
182

LITTLE LOST RIVER
Howe nr, ID

APR-SEP

33

77

98

55

43

PORTNEUF RIVER
Topaz, ID

MAR-SEP
APR-SEP

79
69

74
74

98

50

107
93

GOOSE CREEK
Oakley Res Inflow, ID

MAR-SEP

19

54

92

26

36

SALMON FALLS CREEK
San Jacinto nr, NV

MAR-SEP

56

58

95

30

96

BIG WOOD RIVER
Hailey, ID (1)

Magic Reservoir Inflow, ID

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

144
163
115
121

57
57
39
39

118
110
85
85

0
3
1
1

254
286
295
309