Heat Advisory for the coast and an Extreme Heat Warning inland Friday through Sunday. A Heat Advisory will be in effect along the coast 10am Friday until 8pm Sunday. An Extreme Heat Warning will be in effect inland also from 10am Friday until 8pm Sunday. An Extreme Heat Warning will begin a day earlier for the mountains and deserts from 10am Thursday until 8pm Sunday. At 5pm Wednesday, this Statement will get upgraded to a High Surf Advisory and a Coastal Flood Advisory.