Laserfiche WebLink
COLORADO <br /> WATER SUPPLY CONDITIONS UPDATE <br /> ROM THE OFFICE OF THE STATE ENGINEER; COLORADO DMSION OF WATER RESOURCES May, 1998 <br /> ROOM 818,1313 SHERMAN ST.,DENVER,CO 80203; (303)-866-3581 <br /> Water supplies continue to be acceptable across the state with this spring's runoff and summer supplies looking like <br /> they will be normal or better at this point. May 1 snowpack is 106% of average statewide. Reservoir storage is generous <br /> with nearly all reservoirs are full or expecting to fill. Stream flows are near normal levels. <br /> The Surface Water Supply Index (SWSI) developed by this office and the U.S.D.A. Natural Resources Conservation <br /> Service is used as an indicator of mountain based water supply conditions in the major river basins of the state. It is based <br /> on snowpack,reservoir storage,and precipitation for the winter period (November through April). During the winter period <br /> snowpack is the primary component in all basins except the South Platte basin where reservoir storage is given the most <br /> weight. The following SWSI values were computed for each of the seven major basins for May 1, 1998 and reflect conditions <br /> during the month of April. <br /> May 1, 1998 Change From Change From <br /> Basin SWSI Value Previous Month Previous Year <br /> South Platte 2.2 +0.1 -1.0 <br /> Arkansas 0.1 -1.0 -3.1 <br /> Rio Grande 1.7 +1.2 -1.1 <br /> Gunnison 2.0 +0.8 -1.3 <br /> Colorado 0.1 +1.5 -3.2 <br /> Yampa/White -1.6 -0.8 -4.9 <br /> San Juan/Dolores 0.1 +0.6 -2.5 <br /> SCALE <br /> -4 -3 -2 -1 0 +1 +2 +3 +4 <br /> Severe Moderate Near Normal Above Normal Abundant <br /> Drought Drought Supply Supply Supply <br /> 1 <br />