WY 1998 Volume Forecast Verification

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WY 1998 Volume Forecast Verification

Stream

Forecast
Period

Jan 1
Fcst

%
Avg

Apr 1
Fcst

%
Avg

Obs

%
Avg

Upper Columbia

             

Kootenai River
Libby Inflow

Apr-Sep

5880

87

5520

82

6127

90

S.F.Flathead River
Hungry Horse Inflow

Apr-Sep

1440

66

1620

74

1674

77

Flathead Lake Inflow

Apr-Sep

5270

76

5100

74

5769

83

Mica Inflow

Feb-Sep

12400

94

12000

91

12791

97

Duncan Inflow

Feb-Sep

2130

92

2220

96

2286

99

Birchbank

Apr-Sep

40600

93

39600

90

39930

91

Grand Coulee Inflow

Apr-Sep

56000

86

55900

86

58742

91

Dalles

Apr-Sep

80800

82

82100

83

95020

96

Pend O'Reille River
Pend O'Reille Lake Inflow

Apr-Sep

10700

74

9890

69

12056

84

Snake

             

Jackson Lake Inflow

Apr-Sep

695

80

825

95

1008

116

Palisades Reservoir Inflow

Apr-Sep

2630

82

3560

95

4175

111

N.F. Clearwater River
Dworshak Reservoir Inflow

Apr-Sep

2340

81

1870

65

2235

78

Lower Granit Reservoir Inflow

Feb-Sep

23400

77

25200

80

26366

108



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