1. 2009 Water Supply Summary Liz Cresto

2. Water Year Highlights Precipitation and Water Use: –Boise –Snake –Bear –Salmon

3. The 2009 Water Year Normal snowpack.Normal snowpack. Late season snow.Late season snow. Rain in June and August.Rain in June and August.

5. 2009 April-July Runoff Snake R. nr Heise* 3978 kaf 120 % of avg 73 rd / 99 years Big Wood at Hailey 236 107% 60 / 94 Boise R. nr Boise* 1226 87 % 45 / 114 Payette at HSB* 1491 93 % 38/ 90 Weiser nr Weiser 287 70 % 18 / 67 Snake at Weiser 5004 90 % 47 / 99 Salmon at Whitebird 6545 115 % 63 / 97 St. Joe at Calder 1087 94 % 37 / 91 Bear at Stewart Dam 165 113 % 30 / 50 * calculated natural flow

6. Boise River

8. Return to Climate Charts Web page. Climate Charts Return to Climate Charts Web page. Climate Charts Return to Climate Charts Web page. Climate Charts Rare Precipitation Events in June and August Return to Climate Charts Web page. Climate Charts

11. August Storm on the Boise Natural flow increased but operational loss also increased. Stewart Decree went from 60% to 75% delivery.

13. Snake

16. Recharge Spring 104,000 Acre-Feet Fall anticipate approximately 25,000 Acre- Feet

20. Bear River

26. Salmon

29. Chinook Salmon spawning in Iron Creek, tributary to Salmon River between Challis and Salmon. Site of IWRB’s first 20-year agreement not to divert (2007).

30. Summary Good water supply. June Rains eased irrigation demand. Decent carryover for next year. Think Snow!