The National Weather Service has issued an Excessive Heat Warning for the Mother Lode, the Northern San Joaquin Valley and the Sierra Nevada below 4500 feet through Wednesday 8 PM.
High temperatures from the Northern San Joaquin Valley to the Sierra Nevada (including Yosemite Valley) will range between 100 and 117. Overnight lows in the central valley and the Mother Lode range from the seventies to the low eighties.
Children, the elderly and people with chronic ailments are the most susceptible to heat-related illness. Heat exhaustion, cramps or in extreme cases heat stroke can result from prolonged exposure to these conditions. Pets and livestock are also vulnerable to heat illness and should be cared for properly.
Remember to drink plenty of fluids, stay in an air-conditioned rooom, stay out of the sun, check up on relatives and neighbors who might need assistance and reduce outdoor exposure.