2001 April-July Runoff Bear Lake inflow 16.5 kaf 9 % of avg 8th lowest/ 75 years Snake R. nr Heise* % 4 / 91 Big Wood at Hailey % 5 / 74 Boise R. nr Boise* % 4 / 106 Payette at HSB* % 2 / 82 Weiser nr Weiser % 4 / 74 Snake at Weiser % 3 / 91 Salmon at Whitebird % 3 / 91 St. Joe at Calder % 5 / 81 * Unregulated or natural flow
WATER SUPPLY OUTLOOK Surface Water Supply Index
SWSI Reservoir Storage + Forecast or Observed Inflow=Water Supply Rank values, then determine at what level shortages occur Simplifies comparisons between years with varying amounts of carryover and runoff