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Heat advisory issued for entire Bay Area as temperatures climb
SFGATE • • nation
Key Points:
- A heat wave driven by a high-pressure ridge is causing Bay Area temperatures to rise 10 to 20 degrees above normal, with a heat advisory in effect from Tuesday evening through Thursday evening.
- Subtropical moisture from the remnants of Hurricane Marie is increasing humidity levels, intensifying the heat risk without bringing thunderstorms.
- Temperatures in the East Bay could reach triple digits, with Walnut Creek and Concord hitting 103°F, while San Francisco is expected to be near 90°F; other areas like Santa Rosa and San Jose will also experience high temperatures.
- The Bay Area Air District issued a Spare the Air alert for Wednesday due to predicted unhealthy ozone levels caused by high temperatures, light winds, and delayed sea breezes.
- The ongoing El Niño contributes to warmer ocean waters and higher humidity, making this heat wave more dangerous and increasing the likelihood of tropical storms and hurricanes in the coming months.
