1. 2001 April-July Runoff Bear Lake inflow 16.5 kaf 9 % of avg 8th lowest/ 75 years Snake R. nr Heise* 1569 45 % 4 / 91 Big Wood at Hailey 89.4 35 % 5 / 74 Boise R. nr Boise* 481 34 % 4 / 106 Payette at HSB* 572 35 % 2 / 82 Weiser nr Weiser 138 36 % 4 / 74 Snake at Weiser 2191 40 % 3 / 91 Salmon at Whitebird 2635 44 % 3 / 91 St. Joe at Calder 575 49 % 5 / 81 * Unregulated or natural flow

11. WATER SUPPLY OUTLOOK Surface Water Supply Index

12. 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