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  Storm Center: Weather Alerts: Warnings


 
My Location: San Francisco, CA 
 
Current Time: 01:13:26 PM PDT
Other Alerts  
Weather Alert
    Other Weather Alerts
Type Heat Warning
Issued By
Issuing Time Sat, 09 Aug 2025 12:51:35 PDT
Broadcast Time Sat, 09 Aug 2025 12:51:35 PDT
Valid Until Sat, 09 Aug 2025 18:14:15 PDT
Brief Description Heat Warning
Detailed Description Hot and humid conditions continue today. What: Daytime highs near 29 degrees Celsius, with humidex values near 36. Overnight lows near 19 degrees Celsius. When: Continuing through this evening. Additional information: A cooler air mass is expected to arrive this evening, bringing an end to this heat event. ### Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion. For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
       
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