Extreme Heat Watch

* WHAT...For the Heat Advisory, highs 97 to 102 degrees with overnight lows between 60 to 65 degrees. Widespread Moderate HeatRisk. For the Extreme Heat Watch, highs 100 to 105 degrees with overnight lows between 65 to 70 degrees. Widespread Moderate HeatRisk with areas of Major HeatRisk in lower valleys.

* WHERE...Northern Washoe County.

* WHEN...For the Heat Advisory, from 8 AM Wednesday to 8 AM PDT Thursday. For the Extreme Heat Watch, from Thursday morning through Sunday morning.

* IMPACTS...Heat-related illnesses will be more likely, especially for those spending extended periods outdoors, in poorly cooled indoor spaces, or who are sensitive to heat.