<P> Other small lakes such as Lake Athabasca in northern Saskatchewan and Lake Nipigon in northwestern Ontario produce early season lake - effect snows . Smallwood Reservoir, a man - made lake located in Labrador has on occasion generated lake - effect snow . </P> <P> The Canadian Maritimes, specifically Nova Scotia and Prince Edward Island, are often affected by such snow squalls when an Arctic winter airmass moves over unfrozen waters . In PEI, sea - effect snow is often generated when a cold north wind blows over the unfrozen Gulf of St. Lawrence, dumping heavy snow on the north shore . In Nova Scotia, a cold north - west wind can produce sea - effect snow over the Cape Breton Highlands from the Gulf of St. Lawrence, and the Annapolis Valley from the Bay of Fundy; in the latter case, the sea - effect snow season can continue all winter as the Bay of Fundy remains open owing to its extreme tidal currents . </P> <P> Lake - effect or sea - effect snow occurs in other countries, near large lakes or large sea areas . In Eurasia, it occurs in the regions of the Black Sea in Georgia and Turkey, the Caspian sea in Iran, the Adriatic Sea in Italy, the North Sea, as well as the Irish Sea and the Aegean Sea, the Balearic Islands, the Baltic Sea as well as areas surrounding the Sea of Japan . </P> <P> Because the southern Black Sea is relatively warm (around 13 ° C or 55 ° F at the beginning of winter, typically 10 to 6 ° C or 50 to 43 ° F by the end), sufficiently cold air aloft can create significant snowfalls in a relatively short period of time . Due to its location on a peninsula between the Black Sea and the Sea of Marmara, Istanbul is very prone to lake - effect snow and this weather phenomenon occurs almost every winter . This type of precipitation is generated by the warmer Black Sea temperature and colder air temperature, over the Istanbul area . In February 2005, a lake - effect snowfall left 50 centimeters (20 in) of snow, and in March 1987, a three - week - long lake - effect snowfall accompanied with strong winds (lake - effect blizzard) left 80 centimeters (31 in) of snow in Istanbul . The snowfall in the eastern regions of the Black Sea is amplified by the orographic effect of the nearby Caucasus Mountains, often resulting in snowfall of several meters, especially at higher elevations . </P>

Lake-effect snow is most common near this lake