On Tuesday, the heat broke an Oakland record and forced people to look for refuge in cooling centers. A South Bay district even cut down its school hours due to rising temperature. There were reports of over 100 degrees of temperature in some scorching Bay Area cities.

According to National Weather Service meteorologist, Charles Bell, it is expected that the temperatures will remain more or less same until the weekend. The blistering temperatures made officials release heat advisories and Spare the Air alerts for Tuesday and Wednesday.

At the Oakland International Airport, the mercury increased 95 and set a record for the date, said the National Weather Service. The earlier record was 93 in 1976. Bell said that the ongoing heat wave, hitting during hottest time of the year in the Bay Area, could be risky for most vulnerable residents of the region.

According to him, "If people are going to be outdoors, they should take breaks, drink a lot of water, and minimize their activity in the afternoon and early evening when it will be the hottest".

This week, temperatures that range from the mid-90s to the low 100s are being produced in many Bay Area cities by a high-pressure system over California. On Tuesday, San Francisco's Ocean Beach was among the coolest places at 83 degrees, while temperature in Livermore hit a Bay Area high of 104. The temperatures didn’t reach close to breaking 1944 record high of 110 in Livermore.