DWR_4151770

• Title: JANUARY 1993 SWSI: COLORADO WATER SUPPLY CONDITIONS UPDATE, SURFACE WATER SUPPLY INDEX
• Year: 1993
• Document Type - Publications and Reports: SWSI Monthly Report

a •
ARKANSAS BASIN
%
Basinwide Conditions Assessment: I
The SWSI value of+0.1 indicates that for December ARKANSAS RIVER BASIN
Surface Hater Supply Index Nlatory
the basin water supplies were normal. The Soil Conservation S I
Service reports December 31 snowpack at 131% of normal. 4
Storage in Turquoise, Twin Lakes, Pueblo, and John Martin W 3 14 . - 1;
reservoirs totaled 109% of normal on December 31. The - i
National Weather Service reports basin precipitation during 2 :;; . E
December at 75% of normal. Precipitation in Pueblo was .45 ; 1 -; '_
inches, or .14 inches above normal. Flow at the gaging i oIi
Lf ry N
station,Arkansas River near Portland,averaged 627 cfs for the " I
month as compared to the 1965-1991 December average of a 2 = -
380 cfs. f
Administrative/Management Concerns: 3
The call on the Arkansas mainstem during the entire -4
JANB4 JANB5 JANB6 JANB7 JAMB JANOS JAN90 JAN91 JAK122 JAN93
month of December was the Winter Water call of 3-1-1910. MDNT..
Some icing in tahe Ft. Lyon Storage Canal cuased some
problems and a chang of plans for delivering for storage the
Winter Water.
Public Use Impacts: ARKANSAS RIVER NR. PORTLAND
During the period November 15 to December 31, 1992 150 FLOW BY WATER YEAR
68,776 acre-feet was stored under the Winter Water storage 143
130
decree. This compares to 69,957 acre-feet stored during the 120
same period last year. Releases from Twin Lakes by the i 110
Bureau of Reclamation averaged about 136 cfs during 4 n 100
90
December. J§a B0
L
LL
IY r 7B
V
BB
d5�+ SO
40
30
20 .
10
Oct Nov Dac Jan Feb March
WINTA
0 WET YEAR(1264) o DRY(1077) • AVG X 1993
REPRESENTATIVE RESERVOIRS
ARKANSAS RIVER BASIN
130
110-
100-
90-
L SO- A
a'3 50 /A \\
30 /
10
o .//
John MartIn Pueblo Turquoise Twln i•k9Q
® Avg 12/31 Content. ® 12131/92 Content.
4