Idaho Climate and Water Resource Forecasts for the 2005 Water Year October 26, 2004 Sponsored by: The Climate Impacts Group (CIG) at the University of.

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Presentation transcript:

Idaho Climate and Water Resource Forecasts for the 2005 Water Year October 26, 2004 Sponsored by: The Climate Impacts Group (CIG) at the University of Washington and Idaho Department of Water Resources Location: The Idaho Water Center __________________________________ Ron Abramovich, Water Supply Specialist USDA Natural Resources Conservation Service “Accuracy of 2004 Streamflow Forecasts and Snow Levels Needed in 2005 for Adequate Irrigation Supplies”

Installation of Soil Moisture and Temperature Sensors at 2, 4, 8 and 20 inches deep at Long Valley SNOTEL Site near Donnelly

Typical Soil Moisture / Soil Temperature Installation Myrtle Creek SNOTEL Site ,520 Feet ---- Panhandle Region Soil moisture and temperature sensors are installed at depths of 2, 4, 8 and 20 inches deep.

April Streamflow Forecasts Based On: April 1 Conditions at XXX% of average: 75% 100% 125% Forecast point KAF % KAF % KAF % Salmon Falls Creek 46 58% 69 86% % (Apr-Jul) Little Wood River 44 56% 66 85% % abv High Five Ck (Apr-Jul) Bear River blw 32 14% % % Stewart Dam (Apr-Jul) These forecasts utilize observed 2004 summer flows and projected October 2004 flows as of October 20, 2004.

USDA NATURAL RESOURCES CONSERVATION SERVICE Based on Mountain Data from NRCS SNOTEL Sites As of : Monday: OCTOBER 25, 2004 As % of Average Snow WaterPrecipitation IDAHO PANHANDLE REGION 169* 141 CLEARWATER BASIN 172* 117 SALMON BASIN 142* 95 WEISER BASIN 160* 124 PAYETTE BASIN 107* 97 BOISE BASIN 144*111 BIG WOOD BASIN 180* 127 LITTLE WOOD BASIN 250* 145 BIG LOST BASIN 225* 131 LITTLE LOST, BIRCH BASINS 170* 114 MEDICINE LODGE, BEAVER, CAMAS BASINS 353* 186 HENRYS FORK, TETON BASINS 290* 169 SNAKE BASIN ABOVE PALISADES 197* 136 WILLOW, BLACKFOOT, PORTNEUF BASINS 214* 162 OAKLEY BASIN 175* 90 SALMON FALLS BASIN 175* 84 BRUNEAU BASIN 186* 105 OWYHEE BASIN 112* 154 BEAR RIVER BASIN 295* 204 * = Data may not provide a valid measure of conditions.