 As we enter our first heat wave of the year, the King County Regional Homelessness Authority has activated its severe weather protocols. Today is Tier 2, or orange, moderate risk for people sensitive to heat. That means opening cooling centers, among other things. The level moves to Tier 3, or red, on Saturday and Sunday, and that's a higher risk. In addition to the daytime cooling centers, the county will provide cooling tents with misting fans, and they'll be checking on the elderly and those with disabilities to make sure they have what they need.