WSP09347

• File Number: 8040.970
• Description: Basin Outlook Reports
• State: CO
• Date: 1/1/2002
• Author: USDOA
• Title: Colorado Basin Outlook Report
• Water Supply Pro - Doc Type: Publication

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UPPER COLORADO RIVER BASIN
Streamflow Forecasts - April 1, 2002

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I ~<._.... Drier ....... Future Conditions Wetter .....>>
1
Porp.cast Point Forecast I ..................=... Chance Of Exceeding .........................
Period \ 90\ 70' I 50' (Most Probable) I 30' 10' I 30-Yr Avg.
I (lOOOAP) (lOOOAF) I (lOOO/l.F) U AVG.) \ (1000AP) (lOOOAF) I (1000AF)
.........................................................=..........1..........=.=..........1.....................=.=.............
Lake Gunby Inflow APR-JUL 111 130 I 145 64 I 162 190 225
1 I
Willow Creek. Reservoir Inflow APR-JUL 16.3 23 I 29 55 I 34 43 51
1 1
Williams Fork. Reservoir inflow APR-JUL 43 52 I 59 62 I 66 78 95
1 1
Dillon ReservoH Inflow APR-JUL 56 85 I 105 63 I 125 154 167
1 1
Green Mountain Reservo1r inflow APR-JUL 150 170 I 195 66 I 200 224 280
I 1
Muddy Creek blw Wolford Mtn. Resv. APR-JUL 19.3 24 1 29 47 33 43 60
I
Eagle River blw Gypsum APR-JUL 145 176 I 200 60 228 275 )35
I
Colorado R1ver nr Datsero APR-JUL 353 634 I 925 57 1016 1297 1440
1
Rued! Reservoir Inflow APR-JUL 59 71 I 90 57 91 109 141
1
Roaring Fork at Glenwoad Springs APR-JUL 281 349 I 400 56 454 540 710
I
Colorado River nr Cameo APR.JUL 606 1043 I 1340 55 1637 2074 2420
1

UPPER COLORADO RIVER BASIN
Reservoir Storage (1000 AF) . End of March

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UPPER COLORADO RIVER BAS IN
Watershed Snowpack Analys1s - April 1, 2002

1
1
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1
1
Avg I Data SItes Last Yr Average
.............__._.=..........._________._...___..........-.--......... -1.......=..........=......................................
214.5 I BLUE RIVER BASIN 8 74 69
I
263.7 I
1
59. I
1
22.5 I
1
61. 9 I
1
13.1 I
1
54,9 I
1
6.8 I
1

Reservoir

Usable I
Capacityl
1

... Usable Storage
This Last
Year Year

DILLON

250.8

206.5

194.9

I..:AKE GRANBY

465.6

167.6

267.0

GREEN MOUNTAIN

139.0

4J .

64.8

HOMESTAKE

43.0

35.6

25.0

RUED'

102.0

62.5

67.

VEGA

32.0

10.2

10.1

WILLIAMS FORK

96.9

56.5

53.4

WILLOW CREEK

9.

7.1

7.7

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40

Watershed

Number
of

ThlS Year as \ of

UPPER COLORADO RIVER BASI

II

64

7'

MUDDY CREEK BASIN

"

"

.

PLATEAU CREEK BASIN

2

"

53

ROARING FORK BASIN

81

"

7

WILLIAMS FORK BASIN

67

62

.

WILLOW CREEK BASIN

80

"

.

TOTAL COLORADO RIVER BASI

76

61

The av~rage 15 compuLed for the 1971-2000 base period.

. 90', 70', 30', and 10\ chances of exceeding are the probabilities that the actual volume will exceed the volumes in the table.

III The values lis::ed under the 10' and 90' Chance of Exceedlng are actually 5' and 95' e:xceecance levels.
(2) The value 18 natural volume - actual volume may be affected by upstream water management.

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