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o -) ~ to", U\ ..... inches below the average. February precipitation was below average also. The reported total for the month of February was 0.79 inches, 67 percent of the 1966~ 1995 average. Inflow for February fell below average at 90 percent. March 1 snowpack water content was 99 percent of average, while the April-July runoff forecast increased to 200,000 acre-feet. March precipitation was well below average at 39 percent, but the inflow improved to 122 percent of average. Higher temperatures across the state contributed to the increase in inflow, as the snowpack began to melt off. April 1 snowpack water content was reported to be 78 percent of the 30-year average. With the snowpack water content percentage reduced, the April-July runoff forecast decreased to 165,000 acre- feet. Lake Granby storage on March 31 was 454,184 acre-feet which was 158,094 acre-feet above the 1966- 1995 average.. April was another dry month in the area, as the weather brought. only 0.85 inches cif rain to the . watershed. That was only 52 percent of the 30-year average. The May 1 snowpack water content continued to be low at 78 percent of the 30-year average. As a result of the dry conditions, May-July runoff forecast was dropped to 150,000 acre-feet, below the volume forecasted for the same period the previous 4 years. April inflow was also lowat 81 percent of average. The dry weather pattern continued during May. Precipitation for the month was less than an inch, a low 54 percent of the 1966-1995 average. Warmer temperatures helped to increase the inflow into the reservoir. As the month progressed, inflow increased. The total inflow volume reported was 51,044 . . acre-feet, which represents 97 percent of the 30-year average. The summer mountain storms brought some reliefto the dry conditions in the area during June in the form of rainfall. Precipitation for the watershed was reported at 2.00 inches, or 137 percent of to 30-year average. But, regardless of the additional precipitation, the inflow began to fall, as the snowpack had dropped to a minimum. By the end of June, inflow total was computed at 71,300 acre-feet, which represented 74 percent of the 1966-1995 average. Lake Granby storage continued to rise rapidly reachinga peak of 538,166 acre-feet by July 1, with a water surface elevation 8,279.78. feet, which was 0.22 feet below maximum operating level. Lake Granby is required to initiate a spill when the water surface elevation reaches 8,279.50 feet. A spill was initiated on June 28,as the reservoir elevation reached that level. The spill continued until July 9.. A total of 13,918 acre-feet were released over the spillway during those 12 days. Natural inflow peaked on June 3 at 2,054 ft%. Adams Tunnel diversions were minimal during the first half of June, as the east slope enjoyed higher precipitation during the spring and the water storage situation at Carter and Horsetooth was near normal. The maximum daily average spillway release at Lake Granby for the water year 1998 was 1,225 ft3/s. This maximum release . was recorded on July 2, 1998. Precipitation increased dramatically during the month of July, as rainfall reports totaled 3.62 inches, 210 percent of average. Natural inflow was also increased. The total inflow for the month was reported at 46,600 acre-feet, 112 percent of the 30-year average. The total April-July inflow was 178,100 acre-feet, which was 85 percent of average. Total release to the Colorado River for July was equal to the bypass release for minimum required fish habitat plus a spill of 11,191 acre-feet that ended on July 9. The Lake Granby spill totaled 32,000 acre-feet for water year 1998, 256 percent of the 3D-year average. For the month of August, diversions through the Adams Tunnel were at a maximum capacity. 11