* WHAT...Very cold wind chills as low as 10 to 20 below zero expected. * WHERE...Central Alaska Peninsula and Chignik. * WHEN...From 6 PM Saturday to 2 PM AKST Monday. * IMPACTS...The dangerously cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 10 minutes. Frostbite and hypothermia are likely if exposed to these temperatures.