Stream and Station

Most
Probable
Forecast
(1000 AF)

Most
Probable
Forecast
(% of Avg)

Reasonable
Maximum
(% of Avg)

Reasonable
Minimum
(% of Avg)

30 Year
(1971 - 2000)
Avg Runoff
(1000 AF)

GREY'S RIVER
Palisades abv, WY

APR-SEP

285

72

86

58

394

SALT RIVER
Etna nr, WY

APR-JUL
APR-SEP

245
300

72
72

91
91

53
53

342
419

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

APR-SEP
APR-JUL
APR-JUL

595
575
995

78
78
64

90
95
77

66
61
50

763
734
1559

FALLS RIVER
Squirrel nr, ID (1)

APR-JUL

305

79

97

62

386

TETON RIVER
St. Anthony nr, ID

APR-JUL
APR-SEP

335
400

83
83

102
102

64
64

403
482

BIG LOST RIVER
Mackay Reservoir Inflow, ID

APR-JUL
APR-SEP

109
133

77
77

102
102

51
51

142
173

LITTLE LOST RIVER
Howe nr, ID

APR-SEP

42

79

93

65

53

PORTNEUF RIVER
Topaz, ID

MAR-SEP
APR-SEP

66
59

61
62

75
76

43
44

109
95

GOOSE CREEK
Oakley Res Inflow, ID

MAR-SEP

27

73

103

48

37

SALMON FALLS CREEK
San Jacinto nr, NV

MAR-SEP

77

79

111

52

98

BIG WOOD RIVER
Hailey, ID (1)

Magic Reservoir Inflow, ID

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

189
215
182
192

74
74
63
63

107
104
92
92

40
44
33
33

256
289
291
307