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

162

42

57

27

388

SALT RIVER
Etna nr, WY

APR-JUL
APR-SEP

128
160

40
40

59
55

21
25

319
399

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

APR-SEP
APR-JUL
APR-JUL

470
365
665

64
54
55

72
70
68

57
38
40

730
678
1219

FALLS RIVER
Squirrel nr, ID (1)

APR-JUL

215

59

73

45

364

TETON RIVER
St. Anthony nr, ID

APR-JUL
APR-SEP

235
290

62
62

75
72

49
52

380
471

BIG LOST RIVER
Mackay Reservoir Inflow, ID

APR-JUL
APR-SEP

65
79

43
43

83
76

4
10

150
182

LITTLE LOST RIVER
Howe nr, ID

APR-SEP

26

60

77

43

43

PORTNEUF RIVER
Topaz, ID

MAR-SEP
APR-SEP

60
48

56
52

73
69

39
35

107
93

GOOSE CREEK
Oakley Res Inflow, ID

MAR-SEP

11

32

67

0

36

SALMON FALLS CREEK
San Jacinto nr, NV

MAR-SEP

32

33

71

0

96

BIG WOOD RIVER
Hailey, ID (1)

Magic Reservoir Inflow, ID

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

97
110
54
57

38
38
18
18

68
65
58
59

8
12
8
8

254
286
295
309