Picture taken from the National Oceanic Atmospheric Administration
http://pafc.arh.noaa.gov/tvwx.php?img=tomorrow

As stated previously, Augustine Island is located in an air mass known as the Aleution Low, a semi-permanent Polar Air Mass that is characteristic of the Arctic region, although Augustine is further south from the Arctic Circle, it is still part of this air mass. As a result of this, places in the Aleution Low are almost constantly hit by low pressure mid-latitude cyclones that originiate in the North Pacific during the winter. On Tuesdays weather map, this is illustrated as the cold front that made its way from northeast Asia begins to occlude the maritime polar warm front, creating the midlatitude cyclone, which today produced snow around much of the low pressure system.

A picture of a low pressure winter system from the NASA Earth Observatory in the Gulf of Alaska really encompasses the term Mid-Latitude Cyclone.

Picture by Ian Shive

Above is the Aleutian Range shown at sunset. This range makes up the Aleutain Archipelago and extends into the Alaska Range as it makes its way inland. Like Denver, which lies east of the Rockies, Kachemak Bay(Augustine Island) and the Cook Inlet often experience clear skies when the Aleutian Range to the west is receiving snow. This is apparent in the weather map above. This location is interesting because it is affected by mountian ranges, the Bering Sea, and Continental and Oceanic Air Masses which are both frigid and mild.