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  Storm Center: Weather Alerts: Warnings


 
My Location: San Francisco, CA 
 
Current Time: 02:54:26 PM PDT

Other Alerts  
Weather Alert
    Other Weather Alerts
Type Heat Warning
Issued By
Issuing Time Sat, 09 Aug 2025 06:12:40 PDT
Broadcast Time Sat, 09 Aug 2025 06:12:40 PDT
Valid Until Sat, 09 Aug 2025 22:12:40 PDT
Brief Description Heat Warning
Detailed Description Hot and humid conditions expected this weekend. What: Daytime highs near 30 degrees Celsius, with humidex values of 35 to 40. Overnight lows near 20 degrees Celsius. When: Today through Sunday. Additional information: A cooler air mass is expected to arrive Sunday 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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Region Alert
Colorado Severe Thunderstorm Warning (3)
Nebraska Severe Thunderstorm Warning (5)
Arkansas Flood Warning (5)
Iowa Flood Warning (14)
South Dakota Flood Warning (9)
Minnesota Flood Warning (11)
North Dakota Flood Warning (4)
Georgia Flood Warning (6)
South Carolina Flood Warning (8)
Nebraska Severe Local Storm Watch or Watch Cancellation
Colorado,Kansas,Nebraska Severe Local Storm Watch or Watch Cancellation (3)
Lake Michigan - Wisconsin,Lake Michigan Special Marine Warning (8)
Montana Lakeshore Warning or Statement (3)
New Mexico Public Severe Weather Alert (7)
Texas Public Severe Weather Alert (9)
Kansas,Missouri Public Severe Weather Alert (22)
California Public Severe Weather Alert (48)
Oklahoma,Texas Public Severe Weather Alert (7)
Arkansas,Oklahoma Public Severe Weather Alert (14)
Coastal California Public Severe Weather Alert (8)
Washington Public Severe Weather Alert (3)
Idaho,Washington Public Severe Weather Alert (2)
Oregon Public Severe Weather Alert (12)
Coastal Oregon-California Public Severe Weather Alert (5)
Coastal California-Oregon Public Severe Weather Alert (5)
Coastal Oregon-California,Coastal California-Oregon Public Severe Weather Alert
Coastal Oregon-California,Coastal California-Oregon Public Severe Weather Alert
Coastal Oregon-California,Coastal California-Oregon Public Severe Weather Alert
Hawaii Coastal Flood Warning, Watch, or Statement (11)
North Carolina Coastal Flood Warning, Watch, or Statement (11)
South Carolina Coastal Flood Warning, Watch, or Statement (7)
Florida Coastal Flood Warning, Watch, or Statement (5)
Missouri Flood Statement (4)
Iowa,Missouri Flood Statement (20)
Wisconsin Flood Statement (7)
Kansas Flood Statement (6)
Illinois,Missouri Flood Statement
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Louisiana Special Weather Statement (2)
Iowa Special Weather Statement
Nebraska Special Weather Statement
Wisconsin Special Weather Statement
Colorado Special Weather Statement
Illinois Special Weather Statement
California Air Stagnation Advisory (4)
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Minnesota Air Stagnation Advisory (6)
Pennsylvania Air Stagnation Advisory
New York Air Stagnation Advisory
Arizona Non Precipitation Warning, Watch, or Statement (16)
Coastal California Non Precipitation Warning, Watch, or Statement (20)
Oregon Non Precipitation Warning, Watch, or Statement (21)
Coastal California-Oregon Non Precipitation Warning, Watch, or Statement (5)
New Mexico Non Precipitation Warning, Watch, or Statement
Colorado Non Precipitation Warning, Watch, or Statement
Wyoming Red Flag Warning (6)
Utah Red Flag Warning (10)
Colorado Red Flag Warning (10)
Oregon Red Flag Warning (5)
Michigan Marine Weather Statement (4)
Maine Marine Weather Statement (2)
Florida Marine Weather Statement
Hawaii Marine Weather Statement (5)
North Carolina Marine Weather Statement (12)
South Carolina Marine Weather Statement (2)
Lake Michigan - Michigan,Lake Michigan Marine Weather Statement (33)
Coastal California Marine Weather Statement (9)
Coastal Virginia Marine Weather Statement (3)
Coastal North Carolina Marine Weather Statement (24)
Maryland,North Carolina,Virginia Marine Weather Statement (5)
Wisconsin Marine Weather Statement (12)
Delaware,New Jersey Marine Weather Statement (3)
Coastal Oregon Marine Weather Statement
Coastal Oregon-California Marine Weather Statement (5)
Coastal California-Oregon Marine Weather Statement
Key West - Florida Marine Weather Statement
Alaska Marine Weather Statement (2)
Coastal Florida Marine Weather Statement
Coastal Virginia,Coastal North Carolina Marine Weather Statement
Coastal Virginia,Coastal North Carolina Marine Weather Statement
Coastal Virginia,Coastal North Carolina Marine Weather Statement
Coastal Virginia,Coastal North Carolina Marine Weather Statement
Coastal Virginia,Coastal North Carolina Marine Weather Statement
Coastal Virginia,Coastal North Carolina Marine Weather Statement
Coastal Virginia,Coastal North Carolina Marine Weather Statement
Coastal Virginia,Coastal North Carolina Marine Weather Statement
Coastal Virginia,Coastal North Carolina Marine Weather Statement
Coastal Virginia,Coastal North Carolina Marine Weather Statement
Coastal Virginia,Coastal North Carolina Marine Weather Statement
Missouri River Statement (4)
       
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