Environment Canada has now issued a Winter Storm Warning for Tuesday for all of PEI.
A strengthening low pressure system off the east coast of the U-S will move northeastward today and track south of Nova Scotia on Tuesday. Snow will begin overnight and intensify Tuesday morning with total amounts of 15 to 20 cm expected.
The winds will pick up as well gusting northeast to 70kh, and that blowing snow will cause significant reductions in visibility causing hazardous driving conditions through the day on Tuesday.