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

189

49

63

35

388

SALT RIVER
Etna nr, WY

APR-JUL
APR-SEP

147
183

46
46

66
63

26
30

319
399

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

APR-SEP
APR-JUL
APR-JUL

490
415
745

67
61
61

75
79
77

59
44
46

730
678
1219

FALLS RIVER
Squirrel nr, ID (1)

APR-JUL

245

67

84

52

364

TETON RIVER
St. Anthony nr, ID

APR-JUL
APR-SEP

260
325

68
69

83
80

55
57

380
471

BIG LOST RIVER
Mackay Reservoir Inflow, ID

APR-JUL
APR-SEP

71
86

47
47

89
82

5
13

150
182

LITTLE LOST RIVER
Howe nr, ID

APR-SEP

27

63

80

46

43

PORTNEUF RIVER
Topaz, ID

MAR-SEP
APR-SEP

62
50

58
54

58
54

58
54

107
93

GOOSE CREEK
Oakley Res Inflow, ID

MAR-SEP

12

34

67

0

36

SALMON FALLS CREEK
San Jacinto nr, NV

MAR-SEP

34

35

73

0

96

BIG WOOD RIVER
Hailey, ID (1)

Magic Reservoir Inflow, ID

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

107
121
56
59

42
42
19
19

73
70
62
62

11
15
5
6

254
286
295
309