Moreno Valley: Extreme Heat Warning

An Extreme Heat Warning is in effect from 10 a.m. Thursday to 8 p.m. Sunday for portions of southwest Arizona and southeast and southern California, issued by the National Weather Service in Phoenix. Afternoon temperatures are expected to reach 109 to 121 degrees, with major to extreme heat risk. The warning cautions that heat-related illness — including heat cramps, heat exhaustion, and heat stroke — becomes more likely, and advises rescheduling strenuous outdoor activity to early morning or evening, wearing lightweight clothing, and drinking plenty of water. Heat stroke is