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

:~~==~=~=:===~==========~~====~:===a=======~=~==========~=~=============~~==================~=====~========= =====================

SOUTH PLATTE RIVER BASIN
Streamflow Forecasts - June 1, 2001

Forecast: pOlnt

:===============================~==========~================================================---======--========-=====-=====-==-

<<====== D~ier ====== Futu~e Conditions Wetter =====~~
==================== Chance Of Exceeding ~ ==~=====~==========~==
I 90\ 70\ I 50\: (Most Probable) I 30" 10\
I (1000AF) (lOOO.....F) I (1000AFl (" AVG.) I (1000AF) (1000AF)
.......==.=======.======.===.==========1===.=================='1===============
APR-JUL 3.4 4.9 I 6.3 54 I 8.0
APR-JUL 16.8 22 I 26 68 I 31
APR-JUL 12 9 20 I 25 66 I 30
APR-JUL 41 50 i 57 66 I 65
APR-SEP 83 124 I 152 71 I 180
APR-SEP 16.5 22 I 25 83 I 29
APR-SEP 74 87 I 96 75 I 105
APR-SEP 4.1 53 I 61 78 I 69
APR-SEP 35 40 I 43 83 I 45
APR-SEP 24 32 I 37 82 I 42
APR-SEP 56 78 I 86 75 I 94
APR-SEP 101 133 I 155 57 I 193

Antero Reservol~ lnflow
spinney Mountaln Reservoir lnflow
Elevenmile Canyon ReselvOlr lnflow
Cheesman Lake inflow
South platte Rlver at South Platte
Bear Creek at Morrison
Clear Creek at Golden
St Vrain Creek at Lyons
Boulder Creek nr Orodel1
South Boulder Creek nr Eldorado Sprl
B19 Thompson Rlver at mouth nr Drake
Cache La poudre at Canyon Mouth

Fo~ecast I
Period

30-Yr AVg.
(lQOOM)

=,,==== = ~=====

11.5
40
37
80
221
34
118
81
51
50
106
250

11.7
3B
38
84
213
30
128
7B
52
"
'"
'72

======================:=================9==============================~==============a~==========:=============::========~

Reservoir

==========================~m~===============

SOUTH PLATTE RIVER BASIN
Watershed Snowpack Analysis June 1, 2001

SOUTH PLATTE RIVER BASIN
ReserVOlr Storage (1000 AF) - End of May

==:======,,========~3==========================~============

Usable I ... Usable Storage Number This Year as \ of
Capacity I Th1.s Last Watershed of =====~E==========
1 Year Year Avg I Data Sltes Last Yr Average
===================== .===============..========1='================='======'..============================
20.0 20.0 14. B I BIG THOMPSON BASIN 3 0 0
29.8 33.3 25.8 I BOULDER CREEK BASIN J 148 24
2.8 40 4.4. I CACHE LA POUDRE BASIN 2 43 19
36.4 43.5 40.3 I CLE:AR CREEK BASIN 2 148 43
10.2 10.0 8.8 I SAINT VRAIN BASIN 1 0 0
99.9 61.1 100.4 I UPPER SOUTH PLATTE BASIN 6 1100 19
7.8 8.0 5.4 I TOTAL SOUTH PLATTE BASIN 16 92 22
'71.5 75.2 60.4 I
11.5 17.5 14.5 I
101. 4. 100. J 91. 9 I
]3.7 30.0 ]0.6 I
10.6 7.0 7.7 I
25.6 38.0 27.2 I
6.4 4.5 6.1 I
15.3 14.5 13.7 I
36.8 63.6 122.7 I
26.1 25.0 32.3 I
17.6 16.1 22.9 I
12.1 12.2 10.7 I
6.7 6.5 8.2 I
5.3 5.3 5.3 I
9.6 9.6 7.0 I
17.7 11.0 8.9 I
22.5 36.7 16.7 I
70.6 60.0 6411
240 23.9 2471
55.0 47.0 54.7 I
31. '7 34.1 36.9 I
36.5 37.7 29.7 I
7.6 7.5 661
12 5 12.6 11.5 I
15.1 15.5 13.4 I

ANTERO
BARR LAKE
BLACK HOLLOW
BOYD LAKE
CACH E LA POUDR E.:
CARTER
QIAMBERS LAKE
CHEESMAN
COBB LAKE
ELEVEN MILE
EMPIRE
FOSSIL CREEK
GROSS
HALLIGAN
HORSECREEK
HORSETOOTH
JACKSON
JULES BURG
LAKE LOVELAND
LONE TREE
MARIANO
MARSHALL
~tAR STON
MILTON
POINT OF ROCKS
PREWITT
RIVERSIDE
SPINllEY MOUNTAIN
STA.NDLEY
TERRY LAfo:E
UNIOU
WWDSOR

20.0
32.0
8.0
49.0
10.0
108.9
9.0
79.0
J4 .0
97.8
]8.0
12.0
41.8
6.,
16.0
149. '7
35.0
2B 0
14.0
9.0
6.0
10.0
13.0
24.0
70.0
33.0
63.1
48.7
42.0
80
1] 0
19 0

. 90;, 70\. 30\. and 10\ chances of exceeding are the probabilities that the actual volume will exceed the volumes ln the table.
The average is computed for the 1961-1990 base perlod.
(1) The values Ilsted under the 10\ and 90\ Chance of Exceedlng are actually 5\ and 95\ ~xceedance levels.
(2) The value is natural volume - actual volume may be affected by upstream water management.