* WHAT...Snow and blowing snow. Additional snow accumulations up to one inch. Winds gusting as high as 45 mph. Visibility reduced to a half mile or less at times. * WHERE...Kuskokwim Delta Coast and Nunivak Island. * WHEN...Until 8 AM AKDT Sunday. * IMPACTS...Visibilities reduced to one half mile or less due to blowing snow. Travel could be very difficult. * ADDITIONAL DETAILS...Gusty northwest winds will cause areas of blowing snow and significantly reduced visibilities, mainly along the coast. The worst conditions are expected north of Kipnuk, including in and around Toksook Bay.

* WHAT...Very cold wind chills from 20 below to 40 below. * WHERE...Kuskokwim Delta, and Western Capes. * WHEN...Until 1 PM AKDT Monday. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes. Frostbite and hypothermia are likely if exposed to these temperatures. Wind chill values can lead to hypothermia with prolonged exposure. * ADDITIONAL DETAILS...Cold northerly flow and enhanced wind gusts will lead to a period of frigid wind chills over the weekend through Monday morning. Winds expected to be relatively stronger along the coast, but temperatures will be lower inland near Bethel. Expect coldest temperatures overnight, increasing during daytime hours, and returning to frigid conditions overnight. By Monday afternoon, a slight warming trend and decrease in wind speeds will occur, raising wind chills closer to 10 below.