WSP05271

• File Number: 8040.970
• Description: Basin Outlook Reports
• State: CO
• Date: 1/1/2001
• Author: USDOA
• Title: Colorado Basin Outlook Report
• Water Supply Pro - Doc Type: Publication

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UPPER COLORADO RIVER BASIN
Streamflow Porecasts .. May 1, 2001

==~.=....~_.._=~.=~..=a_.._~~a~==..._.........._~.....~~~=~...=~~~_..._.=.~~_.._==~a.a=~~.....=~~..~_.~~.a~_~...a=~....~.....~....
I <<...~~. Drier ====.. Future Conditions Wetter ~~...>>
1
Porecast Point Forecast \ ...==............... Chance Of B~ceedin9 ~_...._..._.._...====~
Period I 90\ 70" I 50% (Most Probable) I 30\ 10\ I 30-Yr Avg.
I {1000AP} (1000AP) I (1000AP) (\ AVG.) I (lOOOAF) (lOOOl\F) I (1000AP)
............................=.=..=......=...........................1................=......1=.......=.=......=.........=........=
Lake Granby Inflow APR-J11L 145 159 I 170 79 I 181 199 214
I I
Willow Creek Reservoir Inflo.... APR-J11L 26 33 I 39 78 I 45 55 SO
I I
Williams Fork Reservoir inflow A.PR-J11L 68 78 I 85 97 I 92 104 88
1 I
E.P'. Troublesome Creek nr Troublesom APR-J11L 7.9 11.4 I 13.8 75 I 16.2 19.7 18.5
1 1
Dillon Reservoir Inflow APR-J11L 122 138 I 150 99 I 162 178 151
1 I
Green Mountain Reservoir inflow APR-J11L 215 239 255 97 I 272 298 262
1
Muddy Creek bl", Wolford Mtn. Resv. APR-J11L 41 46 50 78 I 54 61 64
I
Eagle River blw GypSWll I\PR-J11L 179 202 220 71 I 239 270 310
1
Colorado River nr Dotsoro APR-J11L 829 1020 1150 84 I 1280 1471 1362
I
Rued! Rell'ervoir InfloW' APR-J11L 71 86 97 71 I 110 133 136
1
Roaring Pork. at 01enwood Springs APR-J11L 329 393 440 66 I 490 568 671
I
Colorado River nr CiUIleo APR-J11L 1203 1523 1740 76 I 1957 2277 2287
1

UPPER COLORADO RIVER BASIN
Reservoir Storage (1000 AF) - End of April

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UPPER COLORADO RIVER ~ASIN
watershed Snowpack Analysis . May 1, 2001

1
1
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I
1
I Year Year Avg I Data Sites Last Yr Average
.a~~.....~=~........_~~~...a.a~a_...._..__..._._a......~a~_...a.~~......I~~~._...~z~...a~~......_.._......a......._._~~....=~.....
DILLON 250.8 198.5 222.2 203.8 I BLUE RIVER BASIN 8 91 86
I
220.8 I
1
49.7 I
I
15.1 I
1
59.8 I
I
16.0 I
1
43.0 I
I
6.0 I
1

Reservoir

Usable I
capacity I

... Usable Storage
This Last

I.AKIl: GRANB"i

465.6

273.0

366.5

GREEN MOUNTAIN

139.0

43.7

63.1

HOMESTAXE

43.0

19.1

28.9

RUEDI

1.02.0

63.6

67.9

VEGA

32.0

13.9

24.4

WILLIAMS PORK

96.8

52.6

68.7

WILLOW CREEK

'.0

6.6

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TOTAL COLORADO RIVER BI\SI

38

"

6.0

Watershed

Number
of

This Year as \ of

UPPBR COLORADO RIVER BASI

29

..

"

MUDDY CREEK BASIN

3

61

7'

P~TEAU CREEK BASIN

123

"

ROARING PORK BASIN

7

..

93

WILLIAMS PORK BASIN

4

100

lOB

WILLOW CREEK BASIN

2

95

82

"

The average is computed for the 1961-1990 base period.

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

(1) The values listed under the 10\ and 90\ Chance of Exceeding are actually 5\ and 95% exceedance levels.
(2) The value is natural volume - actual volume may be affected by upstream water management.