Southern California residents must prepare for potentially dangerous heat conditions as the National Weather Service issued an official heat advisory covering multiple inland counties for Tuesday. The warning affects millions of people across San Bernardino County, Riverside County valleys, San Diego County inland areas, and Orange County inland regions where temperatures could reach harmful levels.
The advisory takes effect Tuesday morning at 11 a.m. and remains active until 7 p.m., creating an eight-hour window of elevated heat risk for residents, workers, and outdoor enthusiasts. Meteorologists predict temperatures will climb between 88 and 95 degrees throughout the affected areas, accompanied by what officials classify as moderate heat risk conditions.
The timing of this heat advisory proves particularly concerning as it occurs during peak daytime hours when most people engage in outdoor activities, work commitments, and daily errands. The extended duration means residents cannot simply wait out brief temperature spikes but must plan their entire Tuesday around heat safety considerations.
Health risks multiply during extreme heat events
Medical experts emphasize that hot temperatures significantly increase the risk of heat-related illnesses, which can progress rapidly from mild discomfort to life-threatening emergencies. Heat exhaustion represents the initial stage of heat-related illness, characterized by heavy sweating, weakness, nausea, headaches, and dizziness that can escalate without proper intervention…