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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SAN MIGUEL, OOLORES, ANIMAS, AND S1JJ.l JUAN RIVER BASINS
Streamflow Forecasts - March I, 2002

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I <<...-.. Drier ..-... Future Conditions
I
Forecast f ...-..........-.,.....
Period 1
I (lOOOAP) (1000M) I (lOOOAP) I' AVG.) I (lOOOAF) (lOOOAP) I (lOOOAF)
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Dolores River at Dolores APR-JUL 50 92 I 130 49 I 168 215 265
McPhee Reservoir inflow APR.JUL 51 105 I 150 47 I 195 256 ]20
San Miguel Rlver nr Placerville APR.JUL ]6 150 I 80 61 I 100 129 132
Gurley Reservolr Inlet APR-JUL ].2 7.0 1 9.5 58 1 12.0 15.8 16.5
APRIL I 0.80 48 I 1.66
MAY I 5.80 156 I 8.8]
JUNE I 2.50 54 I 4.67
JULY I 0.40 ]0 I 1.]2
APR-Jtn. 0.68 1.35 I 1.80 51 I 2.69 4.01 ].5]
APRIL I 0.15 33 I 0.46
MAY ! 1.00 151 I 1.154
JUNE 0.50 48 I 1.04
JULY 0.15 40 I 0.]8
APR-JUL 0.62 1.26 1.70 59 I 2.14. 2.78 2.86
APRIL 0.15 ]8 I 0.40
MAY 1.00 76 I 1.]2
JUNE 0.40 415 I 0.87
JULY 0.15 515 I 0.27
APR-JUL 13.2 19.6 24 45 I 34 48 5]
APR-JUL 0.6 18.7 31 45 I 43 61 69
APR-JUL 7] 133 185 46 I 245 349 405
APR -JUL 7.0 60 95 41 I 130 183 2]0
APR-JUL 9.0 49 77 38 I 105 145 205
APR-JUL 199 271 320 40 I 453 648 800
APR-JUL 53 141 200 46 I 259 347 440
APR-JUL 1.4 15.5 25 43 I 35 49 58
APR-JUL 1.0 7.3 11.5 46 I 15.7 22 25
APR-JUL 8.5 15.3 20 50 I 29 4] 40
1>.PRIL 3.60 62 I 5.80
MAY 10.1 64 I 15.9
JUNE 5.4 ]9 I 13 '7
JULY 0.90 20 I 4.60

Forecast: Point:

Cone Reservoir Inlet:

LilylAndS Reserv01r Inlet

R10 Blanco at Blanco Diversion
NaVAJO River at 080 DiverS10n
San Juan River nr Carracus
Piedra River nr Arboles
vallecito Reservoir Inflow
Nava]o Re.ervoir Inflow
Animas River at Durango
Lemon Reservolr Inflow
La Plata River at Hesperus
Mancos River nr Mancos

Wetter .....,.,.

J

'"

Chance Of Exceeding
50' (Most Probable)

30.

10'

]O-Yr Avg.

70.

..,

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I SAN MIGUEL, DOLORES, ANIMAS, AND SAN JUAN RIVER BASINS
I Watershed Snowpack Analysis - March 1, 2002

SAN MIGUEL, OOLORES, ANIMAS, AND SAN JUAN RIVER BASINS
Reservoir Storage (1000 AF) - End of February

Reservoir

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Average

This Year as , of

Usable I
Capaci ty I
I

Number
of
Data Sites

Lllst Yr

**- Usable Storage
Tha Last
Year Year Avg

Watershed

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GROUNDHOO 21. i 11.1 11.3 12.0 ANIMAS RIVER BASIN , .. 43
JACKSON GULCH 10.0 2.3 2.' ... DOLORES RIVER BASIN 7 " 52
~EMON 40.0 12.9 10.1 20_4 SAN MIGUEL RIVER BASIN 5 65 53
MCPHEE 381.2 206.3 220.0 276_3 SAN JUAN RIVER BASIN 3 2. 30
NARRAGlJINNEP 19.0 18.0 17.2 13 .5 TOTAL SAN MIGUEL, DOLORES 23 .. 45
VALLECITO 126.0 56.9 48.2 60.8 AN JUAN RIVER BASINS

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. 90', 70t, ]0'. and 10\ chances of exceeding are the probabillties that the actual volume will exceed the volumes ln the table.
The average is computed for ~he 1971-2000 base period.
(1) . The values listed under ~he 10\ and 90' Chance of Exceeding are actually 5\ and 95' exceedance levels.
(2) - The value 18 natural volume - actual volume may be affected by upstream water management.

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