A Sunday storm is brewing, and it's also set to usher in Islander Day with a mixture of snow, ice pellets, freezing rain and wind across P.E.I. 

Environment Canada has issued weather warnings for all three of Prince Edward Island's counties starting early this evening and continuing into the holiday Monday.  

A snowfall warning is in effect for Prince County, while Queens and Kings counties are under a freezing rain warning during the overnight hours. That's in addition to a wind warning for King…