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

SOUTH PLATTE RIVER BASIN
Streamflow Porecasts March 1, 2002

...................................................................-.-.........-...-...........---................._........._-~~.

<<..____ Drler ......

Future ConditlOns

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Wetter ~.c~~)o",

1
1
Forecast I ........c_=~~.~.~z=_ Chance Of Exceeding
Period I 90' 70' I sot (Most Probable)
I (1000AF) (lOOOAP) I (1000AP) (' AVG.) I
....................................................................1..=....................
Antero Reservoir inflow APR-JUL 1.8 2.6 I 3.3 25
Spinney Mountain ReservOlr inflow APR-Jl}L 11.5 15.5 I 19.0 48
Ele"'enmlle Canyon Reservolr inflow APR-JUL 4.9 13.3 I 19.0 46
Cheeslll4n L&ke inflow APR-JUL 27 34 I 39 44
South Plstte RJ.ver at South Platte APR-SEP 35 82 I 115 50
Bear Creek at. Morrison APR-SEP 5.9 12.7 I 17.... 56
Clear Creek at Golden APR.SEP 46 71 I S8 66
St. Vra1n Creek at Lyons APR-SEP J4 48 I 58 69
Boulder Creek nr Orodell APR-SEP 19.3 28 j 34 64
South Boulder Creek nr Eldorado Spr1 APR.SEP 9.8 22 I 31 67
Big Thompson River at TrOuth nr Drake APR-SEP 49 66 I 77 66
Cache La Poudre at Canyon Mouth APR-SEP 54 135 I 190 69

Forecalit Point

3"
(lOOOAF)

'.2
23
25
'5
'"
22
105
"
.0
.0
"
245

SOUTH PLATTE RIVER BASIN
Reservoir Storage (1000 AF) . End of February

10'
(1000AF)

6.1
31
33
.,
195
29
130
83
"
52
105
326

30-Yr Avg.
(lOOOAF)

13 .0
.0
41
8'
230
31
134
8.
53
.6
117
275

"

SOlITH PLATTE RIVER BASIN
Water,hed Snowpack Analysis - March 1, 2002

Reservoir

Usable I
Capacity I
I

Watershed

Nwnber
of
Data Sites

... Usable Storage **.
This Last
Year Year Avg

Last Yr

This Year ali , of

Aver,3ge

ANTERO 20 .0 20.0 20.0 16.3 BIG THOMPSON BASIN 6 83 .,
BARR LAKE 32 .0 25.0 26.7 26.0 BOULDER CREEK BASIN 5 " 50
BLACK HOLLOW 8 .0 2.8 2.5 3.' CAaiE LA POUDRE BASIN 7 83 62
BOYD LAKE " .0 20.4 22.3 32.4 CLEAR CREEK BASIN . 73 6)
CAOl.E LA POUDRE 10 .0 3.6 '.8 7.8 SAINT VRAIN BASIN 3 86 .6
CARTER 108.9 93.5 101.6 93.4 UPPER SOUTH PLATTE BASIN 16 61 43
ClAMBERS LAKE '.0 3.8 3.1 3-1 TOTAL SOUTH PLATTE BASIN " 74 52
CHEESMAN 79.0 58.0 48.1 59_0
COBB LAKE 340.0 6.8 S., 13-9
ELEVEN MILE 97.8 99.4 99.5 95.8
EMPrRE 38.0 30.1 2....9 25.6
FOSSIL CREEK 12.0 8.' '.1 7.'
GROSS 41.B 22.9 20.1 25.3
HALLIGAN 6.' '.7 6.0 '.8
HORSE:CREEK 16.0 12.5 13.2 12.5
HORSE'TOOTH 149.7 '19.3 25.9 109.2
JACKSON 35.0 20.5 22.2 27.3
JULESBURG 28.0 14 .6 14.5 18.9
LAKE LQVE1.AND 14.0 10.2 '.2 8.8
LONE TREE '.0 8.' 8.8 6.7
MARIANO 6.0 2.3 '.1 '.3
MARSHALL 10.0 '.8 6.0 5.'
M.\RSTON 13.0 22.6 '.0 12.9
MILTON 2....0 19.3 18.6 17.1
POINT OF ROCKS 70.0 52.8 55.5 65_4
PREWITT 33.0 20_2 22.5 21. 0
RI;yERSIDE 63.1 47.1 50.4 4B.9
SPINNEY MOUNTAIN 48.7 22.1 18.4 32_2
STANDLEY 42.0 32.1 32.1 33.6
TERRY LAKE 8.0 5.1 5.3 5.3
UNION 13 .0 '.5 10.3 11-0
WINDSOR 19.0 5.5 '.5 11.5

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. 90'. 70'. 30\, and 10' chanceB of exceedlng are the probabilities that the actual volume wlll exceed the volumes in the table.
The average is computed for the 1971-2000 base perlod.
(1) - The values listed under the 10' and 90' Chanc~ of ~ceedlng are actually 5' and 95' exceedance levels.
(2) - The value is natural volume - actual volume may be affected by upstream water management.