* WHAT...Moderate risk of heat effects expected below 3000 feet. Temperatures ranging from 99 to 105 degrees expected.
* WHERE...Salmon River Valley, Lowell, Fenn and Moose Creek.
* WHEN...From 11 AM Saturday to 8 PM PDT Sunday.
* IMPACTS...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries.