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  Storm Center: Weather Alerts: Warnings


 
My Location: San Francisco, CA 
 
Current Time: 04:45:17 PM PDT
Other Alerts  
Weather Alert
    Other Weather Alerts
Type Heat Warning

Special Weather Statement
Issued By
Issuing Time Sat, 26 Jul 2025 15:19:15 PDT
Broadcast Time Sat, 26 Jul 2025 15:19:15 PDT
Valid Until Sun, 27 Jul 2025 07:19:15 PDT
Brief Description Heat Warning
Detailed Description A multi-day heat event begins on Sunday. What: Daytime high temperatures of 30 to 34 degrees Celsius. Humidex values of 38 to 42. Nighttime low temperatures of 19 to 23 degrees Celsius, providing little relief from the heat. When: Sunday through Tuesday. Additional information: The hottest conditions are expected on Monday. There is some uncertainty in the duration of the heat event for some regions. In central Ontario, the heat event may end Monday night. Over some areas the heat event could persist into Wednesday. ### 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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