California Moderate Heat Advisory | Effective 09/08/2026 11:50
* WHAT...High temperatures up to 102 and morning lows up to 75
expected. Widespread Moderate HeatRisk will be present with areas
of Major HeatRisk in the foothills where the thermal belt is
strongest and in urban areas.
* WHERE...The San Joaquin Valley, Sierra Nevada Foothills, and West
Side Hills along the Coastal Range.
* WHEN...From 10 AM Wednesday to 10 PM PDT Thursday.
* IMPACTS...Hot temperatures may cause heat illnesses, especially
those without effective cooling and/or adequate hydration.