• Excessive Heat Warning

    * WHAT...Dangerously hot conditions with daytime temperatures up to 107. * WHERE...North Bay Interior Mountains, East Bay Interior Valleys, Santa Clara Valley, including San Jose, Eastern Santa Clara Hills and East Bay Hills. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...An exceptionally dangerous situation will continue through late week with temperatures well above normal leading to compounding effects among people and infrastructure, with the possibility of numerous heat related fatalities.More

  • Heat Advisory

    * WHAT...Daytime temperatures in the mid 80s to the 90s. * WHERE...San Francisco Bay Shoreline. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. * ADDITIONAL DETAILS...Heat will cause cumulative effects and this situation remains dangerous. Areas of southeast San Mateo County and northwest Santa Clara County, including the Redwood City and Palo Alto areas, will be significantly warmer than seasonal averages and have a greater risk of heat related illnesses.More

  • Excessive Heat Warning

    * WHAT...Dangerously hot conditions with daytime temperatures up to 107. * WHERE...Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito and Interior Monterey County including Pinnacles National Park. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...An exceptionally dangerous situation will continue through late week with temperatures well above normal leading to compounding effects among people and infrastructure, with the possibility of numerous heat related fatalities.More

  • Heat Advisory

    * WHAT...Daytime temperatures up to 103. * WHERE...Portions of California. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses to occur. * ADDITIONAL DETAILS...The long duration of this heat wave will cause cumulative effects and this situation remains dangerous. Areas of eastern Marin County, and the Ben Lomond-Boulder Creek area in Santa Cruz County, will be significantly warmer than seasonal averages and have a greater risk of heat related illnesses.More

  • Heat Advisory

    * WHAT...High temperatures around 95 to 110 degrees expected. Overnight lows mainly in the mid 60s to low 70s. Widespread Moderate to Major HeatRisk. * WHERE...Carquinez Strait and Delta. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events, particularly for those working outside or participating in outdoor activities. * ADDITIONAL DETAILS...Heat could significantly impact outdoor activities. Area waterways will continue to run cold and fast, creating dangerous conditions for those seeking relief in rivers and lakes.More



Weather Team