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Precipitation Mountain precipitation in April was just slightly above average for the state. Measurements from the 91 SNOTEL sites across the state indicate April precipitation was 102% of average. The above average conditions were due in large part to the storms that hit Colorado during the last week of the month. Only three basins in the state reported below average precipitation during April; they were the South Platte (99%), the Yampa, White and North Platte basins (94%) and the San Miguel, Dolores, Animas and San Juan basins (98%). At 110% of average, the Upper Rio Grande recorded the highest April precipitation. Colorado's water year precipitation totals (beginning October 1) are 104% of average and 117% of the water year total reported a year ago. Basins with below average water year totals include the Upper Colorado at 97% of average, the South Platte and the Yampa, White, and North Platte basins, both at 88% of average. At 131 % of average, the Upper Rio Grande posted the highest water year to date totals. Reservoir Storage ," Reservoir storage is below average for all the basins in Colorado. However, despite that, the streak where statewide deficits decreased has improved to 9 consecutive months. This month's deficit is approximately 360,000 acre-feet below the average mark for May 1; up from the 449,000 acre-feet deficit reported last month. The current statewide reservoir storage is 89% of average and 106% of storage recorded a year ago. The basins with the highest percent of average storage include the Yampa, White and North Platte River basins and the San Miguel Dolores, Animas and San Juan River basins, both of which reported at 98% of average. The Gunnison River Basin and the South Platte River Basin, both with 97% of average reservoir storage, placed a close . second. At 56% of average reservoir storage, the Upper Rio Grande Basin posted the lowest percent of average figure in the state. With a deficit of 138,000 acre-feet, the Arkansas River Basin continues to report the greatest deficit in terms of volume. Based on this month's forecast, the southern basins show the best chances to see 'recovery in reservoir storage this year. Streamflow As one would expect from looking at the snowpack conditions, water supply outlooks for spring and summer runoff tend to be better in the southern basins and worsen as you move northward. The highest forecasts are expected in the lower portion ofthe Arkansas and the San Juan and Animas drainages where the volumes are predicted to be over 150% of average at most of the forecast points in the basin. Runoff in the Upper Rio Grande is predicted to be mostly in the 130%-150% range. The Gunnison River Basin can expect most streamflows to range from near average to above average. The remainder of the state is looking at below average to well below average runoff for this spring and summer with the lowest forecasts expected in the South Platte and North Platte River Basins.