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<br />, <br /> <br />~ <br /> <br />UPPER RIO GRANDE RIVER BASIN <br />as of May 1J 1998 <br /> <br />. <br /> <br />Mountain S now pack. (inches) <br /> <br />Precipitation. (% of average! <br /> <br />-H--Current -6-Average <br />---Maximum -+-Minimum <br /> <br />I_Monthly DYear-to-date I <br /> <br />35 <br /> <br />5 <br /> <br /> <br /> 180 <br /> 160 <br /> 140 <br />.. <br />'" 120 <br />.. <br />;; <br />" 100 <br /><! <br />- <br />" <br />.- 80 <br />c <br />.. <br />" <br />~ 60 <br />.. <br />"- <br /> 40 <br /> 20 <br /> 0 <br /> Oct <br /> <br /> <br /> <br />30 <br /> <br /> 25 <br />.5: <br />- <br />" <br />.. 20 <br />'" <br />> <br />':; <br />cr <br />w 15 <br />:;; <br />- <br />., <br />:: 10 <br /> <br /> <br />:: ~ <br /> <br /> <br />":: ~ <br />;::' <br /> <br />o <br /> <br />Dee <br /> <br />Feb <br /> <br />Apr <br /> <br />Jan <br /> <br />Feb <br /> <br />Mar <br /> <br />Apr . May <br /> <br />*BlISed on selected stations <br /> <br />Storms that brought some additional snow and cooler weather to the Rio Grande Basin during <br />April helped slow the melting, which normally occurs at this time. The snowpack is above <br />average for the first time this year at 1 11% of average. The Culebra and Trinchera Creek <br />watersheds are at 216% of average, which is the highest percentage in the state. Precipitation <br />the lower valleys was 53% above average during April, and the water year total is now 19% <br />above average. Reservoir storage in the basin is at 33 % above average for this time of year. <br />Most of the reservoirs are below 50% of their capacities with the exception of Terrace <br />Reservoir, which is near total capacity. Streamflow forecasts have improved significantly for, <br />of the forecast points in the basin, and most forecasts are now above average. Forecasts range <br />from 97% of average on the San Antonio River at Ortiz, to 150% of average at the Trinchera <br />Water Supply. e <br />