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)

YAKIMA RIVER
Keechelus Lake Inflow, WA (1)
Cle Elum, WA
Parker nr, WA

APR-SEP
APR-SEP
APR-SEP

90
580
1130

67
63
57

79
75
70

55
52
43

135
915
1994

KACHESS RIVER
Kachess Lake Inflow, WA (1)

APR-SEP

73

62

79

45

118

CLE ELUM RIVER
Cle Elum Lake Inflow, WA (1)

APR-SEP

280

63

75

50

448

NACHES RIVER
Naches nr, WA

APR-SEP

475

57

72

43

832

BUMPING RIVER
Bumping Lake Inflow, WA

APR-SEP

84

62

79

45

136

TIETON RIVER
Rimrock Lake Inflow, WA (1)

APR-SEP

143

60

75

45

237

AHTANUM CREEKS
Tampico nr, WA (2)

APR-SEP

25

54

93

16

46

SNAKE RIVER
Jackson Lake Inflow, WY (1)

Palisades Res Inflow, ID (1)

Heise nr, ID

Shelley nr, ID (1)
Blackfoot nr, ID (1)
American Falls Res Inflow, ID (1)
King Hill, ID (1)
Murphy nr, ID (1)
Weiser, ID (1)
Brownlee Res Inflow, ID (3)
Hells Canyon, ID (1)
Lower Granite Res Inflow, WA (1)

APR-JUL
APR-SEP
APR-JUL
APR-SEP
APR-JUL
APR-SEP
APR-JUL
APR-JUL
APR-JUL
APR-JUL
APR-JUL
APR-JUL
APR-JUL
APR-JUL
JAN-JUL
FEB-SEP
APR-JUL

530
590
2050
2390
2170
2550
2810
2830
1220
1890
1920
2230
2390
2510
16300
16700
12300

68
68
64
64
63
63
64
64
40
65
64
41
41
41
55
55
57

84
88
87
82
86
78
84
90
79
102
102
85
81
81
79
79
90

51
47
41
45
40
48
44
37
01
29
27
-2
02
1
30
31
23

781
869
3226
3763
3451
4049
4388
4444
3066
2896
2980
5465
5794
6129
29740
30220
21650