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All <br /> RIO GRANDE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of-0.3 indicates that for February the RIO GRANDE BASIN <br /> asin water supplies were near normal. The Soil Conservation 5 9�fece pater s pP Y index Hi GtorY <br /> Service reports February 28 snowpack at 86% of normal. <br /> Storage in Platoro, Rio Grande, and Santa Maria reservoirs x <br /> totaled 207% of normal on February 28. The National 3 3, 4- 1 .1 �_ <br /> Weather Service reports basin precipitation as 125%of normal 2�,}=- - r-a :). Y. - <br /> during February. Flow at the gaging station Rio Grande near 1 = r ° : ,,- rr _ <br /> Del Norte averaged 158 cfs, as compared to the 1961-1993 i 0 ' .�I�_, f�ti. ` I ' <br /> ii <br /> February average of 180 cfs. The Conejos River near Mogote _- �' :=� d '� <br /> had a mean monthly flow of 54 cfs. a 2 - •f ,,r - <br /> In general stream flows in the basin were slightly n ,- <br /> higher than last year but less than historic averages. Flow in 3- fi <br /> the Rio Grande leaving the State was higher than the historic -4 <br /> JANBS JANB6 JAN87 JAN88 JAN89 JAN90 JAN91 JAN92 JAN93 JAN94 <br /> monthly average. Weather conditions in the San Luis Valley YEAR/MONTH <br /> were slightly warmer but much drier than average. Alamosa <br /> received several very light snowfalls that totalled only 0.04 <br /> inches of moisture for the month. This total is 0.25 inches <br /> below normal. Alamosa's average temperature of 22.7° was <br /> just 0.3° above normal. Temperatures ranged from a high of RIO GRANDE NR DELNORTE <br /> 55° to a low of-26°. The average daily high was 40°, while 170 FLOW BY WATER YEAR <br /> the average daily low was 6°. 160 <br /> 150 <br /> 140 <br /> y 130 <br /> Outlook 4 120 <br /> 110 <br /> Snowpack within the basin continues to be less than o 4 1D0 <br /> average at almost all measuring sites. With the irrigation a.W t 90 _- <br /> eason quickly approaching, concern is growing as it appears f.� <br /> hat water supplies for local users will be limited. Most water 1 60 o <br /> 5° <br /> users are planning on a reduced supply this year. <br /> ,0 <br /> 30 <br /> Administrative/Management Concerns 20 <br /> Oct Nov Dec Jan Feb Marcy <br /> Water officials are readying themselves for a busy MONTH <br /> irrigation season as tight administration of available supplies ° WET`19B7J O DRY(1977, 0 AVG % 1994 <br /> will be necessary. The Bureau of Reclamation completed the <br /> Closed Basin Project in the fall of 1993. Flows from the <br /> project provide benefit to the Rio Grande and Conejos Rivers <br /> by reducing curtailment and making more water available for Representative Reservoirs <br /> diversion. This will be the first year of full operation. 45 Rio Grande Basin <br /> 40- <br /> Public Use Impacts <br /> 35- <br /> Although still in full swing, winter outdoor activities <br /> will soon cease as increasing temperatures melt ice and snow. a 30- <br /> Predicted low floLWiEE <br /> in rs might affectters. Ai 25- <br /> However, has <br /> tors 15�/ <br /> with reservoir storage will benefit greatly from this carryover 1D ✓ j <br /> by their being assured of more secure late season diversions. <br /> . 1\\ <br /> Rio Grande Piatoro SentaMar ie <br /> I//I Avg 2/28 Contents 1:77 2/28/94 Content <br /> 5 <br />