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

355

90

112

68

394

SALT RIVER
Etna nr, WY

APR-JUL
APR-SEP

300
370

88
88

115
115

61
61

342
419

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

APR-SEP
APR-JUL
APR-JUL

610
585
1010

80
80
65

94
103
80

66
56
49

763
734
1551

FALLS RIVER
Squirrel nr, ID (1)

APR-JUL

315

82

103

61

386

TETON RIVER
St. Anthony nr, ID

APR-JUL
APR-SEP

330
405

80
81

107
108

59
60

411
503

BIG LOST RIVER
Mackay Reservoir Inflow, ID

APR-JUL
APR-SEP

121
147

85
85

121
121

50
50

142
173

LITTLE LOST RIVER
Howe nr, ID

APR-SEP

40

93

97

65

43

PORTNEUF RIVER
Topaz, ID

MAR-SEP
APR-SEP

92
80

84
84

104
104

65
65

109
95

GOOSE CREEK
Oakley Res Inflow, ID

MAR-SEP

32

86

128

53

37

SALMON FALLS CREEK
San Jacinto nr, NV

MAR-SEP

90

92

133

58

98

BIG WOOD RIVER
Hailey, ID (1)

Magic Reservoir Inflow, ID

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

220
250
275
290

86
87
95
94

137
131
149
148

36
41
43
42

256
289
291
307