* WHAT. An Excessive Heat Warning has been issued for San Francisco for dangerously hot conditions with temperatures up to 96 expected in portions of the city. * WHERE. San Francisco. * WHEN. For the Heat Advisory, until 10 AM PDT this morning. For the Excessive Heat Warning, from 10 AM PDT this morning until 11 PM PDT Wednesday. * IMPACTS. Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

* WHAT. Dangerously hot conditions with high temperatures up to 114 expected. Low temperatures in the northern Coachella Valley mostly in the 80s. * WHERE. San Gorgonio Pass Near Banning. * WHEN. From 10 AM this morning to 8 PM PDT Thursday. * IMPACTS. Heat related illnesses increase significantly during extreme heat events.

* WHAT. Hot temperatures 97 to 106 degrees expected with warm overnight lows in the 60s to mid 70s. * WHERE. Carquinez Strait and Delta, Sacramento Valley, Northern San Joaquin Valley, and the foothills. * WHEN. From 11 AM this morning to 11 PM PDT Wednesday. * IMPACTS. Heat related illnesses will be possible, especially for groups that are sensitive to heat. * ADDITIONAL DETAILS. Widespread Moderate HeatRisk is expected across the Valley and Delta, with Major HeatRisk in the foothills. Limited overnight cooling expected in the foothills. This level of heat may impact outdoor activities.

* WHAT. Hot temperatures 97 to 106 degrees expected with warm overnight lows in the 60s to mid 70s. * WHERE. Carquinez Strait and Delta, Sacramento Valley, Northern San Joaquin Valley, and the foothills. * WHEN. Until 11 PM PDT Wednesday. * IMPACTS. Heat related illnesses will be possible, especially for groups that are sensitive to heat. * ADDITIONAL DETAILS. Widespread Moderate HeatRisk is expected across the Valley and Delta, with Major HeatRisk in the foothills. Limited overnight cooling expected in the foothills. This level of heat may impact outdoor activities.

* WHAT. Dangerously hot conditions with high temperatures up to 114 expected. Low temperatures in the northern Coachella Valley mostly in the 80s. * WHERE. San Gorgonio Pass Near Banning. * WHEN. Until 8 PM PDT Thursday. * IMPACTS. Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS. Well above average temperatures will continue through the weekend.

* WHAT. An Excessive Heat Warning has been issued for San Francisco for dangerously hot conditions with temperatures up to 96 expected in portions of the city. * WHERE. San Francisco. * WHEN. For the Heat Advisory, until 10 AM PDT this morning. For the Excessive Heat Warning, from 10 AM PDT this morning until 11 PM PDT Wednesday. * IMPACTS. Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.