Excessive Heat Warning is through Wednesday
The National Weather Service (NWS) San Diego Office issued an Excessive Heat Warning through 8 p.m., Wednesday, Aug. 30 for San Diego County valleys.
Expect dangerously hot conditions with temperatures from 90 to 104 in San Diego County valleys.
Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. Low temperatures will be in the upper 60s to mid 70s.
The City of San Diego is reminding everyone to stay safe and to seek relief from the sun and heat during the day. San Diegans can visit dozens of City recreation centers, libraries and other public buildings with air conditioning to cool off.
When temperatures soar, hikers and other outdoor enthusiasts are also reminded to take precautions when visiting local trails and open space parks.
“As with any significant change in weather conditions, preparedness is key,” said Chris Heiser, executive director of the City’s Office of Emergency Services. “Extreme heat is no different. Make sure your family and pets stay hydrated and protected from the heat.”
The NWS Excessive Heat Warning boundary includes the City of San Diego east of Interstate 5. An Excessive Heat Warning is issued when the maximum heat index temperature is expected to be 105 degrees or higher for at least two days and night-time air temperatures will not drop below 75 degrees. During a high heat event, San Diegans and visitors are encouraged to:
- Drink plenty of fluids.
- Stay indoors, in an air-conditioned setting.
- Stay out of the sun.
- Reschedule strenuous activity to early morning or late evening.
- Wear lightweight, loose-fitting clothing.
- Never leave children and pets unattended in cars.
To help San Diegans understand and better prepare for environmental threats including high heat events, the City developed the San Diego Hazard Dashboard. This new tool is online and is accessible to anyone.
“The San Diego Hazard Dashboard is intended to provide regional information and situational awareness about real-time conditions,” Heiser said. “Residents can view current hazards and potential risks, including current weather conditions.”
The Hazard Dashboard was developed by the City’s Office of Emergency Services (OES), in coordination with the Department of Information Technology.
To find the list of locations in the City of San Diego where people can cool off, visit sandiego.gov/cool-zones.