* WHAT...High temperatures of 94 to 100 degrees expected and low temperatures in the mid 60s to low 70s, with widespread Moderate HeatRisk and areas of Major HeatRisk.
* WHERE...Sacramento and northern San Joaquin valleys, Delta and Carquinez Strait, and foothills.
* WHEN...From 11 AM Saturday to 10 PM PDT Wednesday.
* IMPACTS...Hot temperatures may cause heat illnesses, especially to anyone without effective cooling and/or adequate hydration.