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

u V .L J V ':t

.

SAN JUAN/DOLORES BASIN

Dec-OO -
--

Basinwide Conditions Assessment
The SWSI value. of 0.5 indicates that for November
the basin water supplies were normal. The Natural
Resources Conservation Service reports that December 1
snowpack is 129% of normal. Flow at the gaging station
Animas River near Durango was 289 cfs, as compared to
the long-term average of 282 cfs. Storage in McPhee,
Vallecito, and Lemon reservoirs totaled 73% of norm-al as of
the end of November. . . .:
Although heavy - snow fell in the 'area in October,
there has been some disappointment in- the lack of -snowfall
for November, Only two snowstorms, Nov. 4-5 and 10-12,
moved through the area.in November.
Temperatures remained well below normal. During
November, the average high temperature was 8,0" below
normal in Durango. The- highest temperature of the month
was 550 on November 5, 2000. The average low
temperature was 1.70 below normal in Durango. The lowest
temperature of the month was 80 on November 13 and 19,
2000. Precipitation in Durango was 80% of normal, 1.55
inches as opposed to a normal of 1.93 inches. For the water
year to date, precipitation has been 182% of normal.
The snow pack remained above normal, for - the
month but it dropped from a high of 186% of normal on
November 14th to 129% of normal on December 1st. Much
of the snow below 9500 - feet had melted by the end of the
month. Soil moisture conditions were good and the ground
was frozen in the exposed areas.

Outlook
Rivers were running at near normal conditions
according to local reporting gages. Reservoirs continue _ to
suffer from the last water.year's lack of precipitation. Storage
levels range from 45% of normal at Lemon Reservoir to 81 %
of normal at McPhee Reservoir.
It Is still early in the season and much more snowfall
is needed to assure an adequate-water supply for next year.

Administrative/Manaaement Concerns
None.

Public Use Imoacts
Winter recreation is off to a good start.

SoW.RJoWIX1.CR5EWl1NSWlI HS'r1:RY

:t ".

5 ----.- ---- ----..--. _____

')
I
I
I
I
I
I

-~

>- .,
15

Iii
:: 2

UJ
~ '
:>
l:J -
<:) 0
;?;

.2

-3

4 "..___u .__.~~ .____ ___ ____. ~__

----..j

Jln.91 Jln.SI2 Jln.93 _ Jin1l6 .D>Ql Jln.!1T JintI8 .lin1llI Jin(X)
M:NIH/'l'EAA

ANIM1\S RrvER I>R ~ FlDN BY WAiER YEAR

200,000 -----
180,000 '

1i 100.000
11.
~ 14Q,000
<C
;i 120,000
~ 100,000
~ eo,OOO

i eo.ooo
a 40,000

20,000
o
0cI

'.

Nov

Dee

Feb

.ran

- MardI

- -e- \NET (1973)

-+- CRY (1911)

......AVG

'*" 2001

f.

REPReSENTATIVE ReSeRVOIRS

:!OO.OOO

250,000

Qj
1200.000

.;
If 150,000
o
1.?
~
S 100,000

50.000

o

. A\Il- 11130 ConIencs

g 11130/90 ClIllIlIQ

9

,,,.

:(.;

(ii~