WSP13019 ‎(2)‎

• File Number: 8040.800
• Description: Colorado Water Resources
• State: CO
• Basin: Statewide
• Date: 7/1/1999
• Author: Division of Water Resources
• Title: Colorado Water Supply Conditions Update Reports
• Water Supply Pro - Doc Type: Data

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SAN JUAN/DOLORES BASIN

Jul~1

Basinwide Conditions Assessment
The SWSI value of -1.0 indicates that for June the
basin water supplies were slightly below normal. Flow at the
gaging station Animas River near Durango was 2,101 cfs, as
compared to the long-term average of 2,590 cfs. Storage in
McPhee, Vallecito, and Lemon reservoirs totaled 99% of
normal as of the end of June.
June is typically ~ dry month, but thi~ year it was
especially so with Durango receiving only 0.14'. inches of
precipitation, 21% of average. ,Average temperatures'
remained high, with the lows averaging 6.40 above normal.
Temperatures dipped to near freezing on June 4th and 14th-
16th which served to cut. back river flows. eliminating a
second expected runoff peak. Flows on the streams were
the highest on June 1 and went steadily lower during the
month. All streams were weil below' average for June, with
the Dolores River and la' Plata River running I,ess than 50%
of normal. The Animas River remained above 1,000 cfs
throughout the month.
Reservoirs contained near average amounts at the
end of the month. '

Outlook
It appeared that thunderstorm activity was beginning
to occur on a daily basis Into July, giving a few areas
welcome relief from the, conditions.

Public Use Impacts
. Fire dan~er was nigh.

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MIMAS AM:R f'oR ~ RDN tr{ WAi1!R '\'EAR

1.000.000

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900,000
3l 800.000
u,. 700.000
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:1 500.000
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~ 400,000
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:::l 300.000
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=> 200,000
(.)
100,000

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~ l'b.I Dee .1M Fell Mvd1 AIri MIy .QlII . JioJ q Sept

--a--II'ET (1973)

-+-mY(1W1)

___ AVG

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REPRE.SENrAl1\IE FlESER\ORS

350,000

300.000

i 250.000

~ 200000
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~ 150,000
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~ 100.000

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5>,000

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BA\Ig. 0&'30 0riInIs

1iI000000Onn

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