* WHAT...Daytime highs of 95 to 100 are expected, with overnight lows around 57 to 59 degrees. Elevated/moderate heat risk.
* WHERE...Valleys and low-lying areas west of the Cascades. This includes communities in the Illinois, Rogue, Shasta, Scott, and Klamath River valleys as well as exposed areas in the western Cascades foothills, in eastern Curry County, and south of Mount Shasta.
* WHEN...From 11 AM Monday to 11 PM PDT Tuesday.
* IMPACTS...Heat illness may occur for those who are sensitive to heat, especially those without access to cooling facilities or hydration.