As warm temperatures bear down on the Northern San Joaquin Valley and foothills, at least through the weekend, officials are urging people to protect their health.
Most forecasters agree that the high temperatures through the weekend will be at least 99 degrees, and some predict the thermometer will top out at 102 in Modesto today through Sunday.
Staying hydrated, out of the sun and not overexerting are key, according to the state Office of Emergency Services.
"This will be kind of the first drill of the season; this is the time when people should realize it will be a hot summer," said Kelly Huston, spokesman for the office. "We are going to have heat waves, and just like when we have earthquakes that remind us we need to be prepared, this is a good reminder that we need to do something to avoid becoming a victim of heat exhaustion."
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Those who are most vulnerable include seniors, infants, young children and people with chronic health conditions, according to the California Department of Public Health.
"Once the temperature rises above 90 degrees and lasts a couple of days, it begins to fatigue people, and we want them to get ahead of it," Huston said.
"Take breaks, check on neighbors. Sometimes we assume that because they are inside their house, they are OK, and sometimes, older people will not run their air conditioning until the very last moment.
"They are being cost conscious and by the time they turn it on, sometimes it is too late. They are already fatigued, and that can be very dangerous."
BEAT THE HEAT
Officials give this advice: