* WHAT...Dangerously hot conditions with temperatures of 95 to 110 expected.
* WHERE...A large portion of southwest California including the coastal ranges and adjacent foothills, as well as the coastal valleys.
* WHEN...From 10 AM Friday to 8 PM PDT Sunday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
* ADDITIONAL DETAILS...Heat hazards may extend into next week for portions of the region.
* WHAT...Temperatures of 90 to 100 expected.
* WHERE...Eastern San Gabriel Mountains County.
* WHEN...From 10 AM Thursday to 8 PM PDT Sunday.
* IMPACTS...Heat hazards may extend into next week for portions of the region.
* WHAT...The South Coast AQMD has issued an air quality alert due to harmful levels of ozone pollution. Visit https://www.aqmd.gov/alertinfo to check current and forecasted air quality levels.
* WHERE...Glendora, San Fernando Valley, Santa Clarita Valley, San Gabriel Valley, San Bernardino, Redlands, Riverside, Crestline and the Coachella Valley.. Levels of ozone pollution can vary by time and location depending on emissions and air pollution transport.
* WHEN...until 8 PM Sunday. The highest ozone levels typically occur in the afternoon and early-evening hours.
* IMPACTS... Ozone air pollution can cause serious health problems, including trouble breathing, asthma attacks, and lung damage. Everyone can be affected, but sensitive groups such as people with lung disease, older adults, people who are pregnant, children, and those who spend a lot of time outdoors are at greater risk.
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Saturday, Aug 1 Clear conditions throughout the day. |
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Sunday, Aug 2 Partly cloudy throughout the day. |
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Monday, Aug 3 Partly cloudy throughout the day. |
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Tuesday, Aug 4 Clearing in the afternoon. |
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Wednesday, Aug 5 Clear conditions throughout the day. |
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Thursday, Aug 6 Clear conditions throughout the day. |
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Friday, Aug 7 Clear conditions throughout the day. |
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Saturday, Aug 8 Clear conditions throughout the day. |
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Sunday, Aug 9 Becoming cloudy in the afternoon. |
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Monday, Aug 10 Clear conditions throughout the day. |
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Tuesday, Aug 11 Becoming cloudy in the afternoon. |
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Wednesday, Aug 12 Partly cloudy throughout the day. |
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Thursday, Aug 13 Clear conditions throughout the day. |
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Friday, Aug 14 Clear conditions throughout the day. |
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Saturday, Aug 15 Clear conditions throughout the day. |