Extremely dangerous heat is expected through this weekend as high temperatures range from the upper 90s into the lower 100s. Heat indices will be as high as 110-120 degrees during the daytime. For central and western portions of the area, these extremely dangerous heat conditions will likely persist for several consecutive days, with limited relief at night. Frequent cooling and hydration breaks are recommended when working outdoors. Heat exhaustion or heat stroke will be likely with prolonged outdoor activity.