Boaters and photographers should be on the alert for Great Lakes waterspouts Sunday.
The potential for seeing a waterspout exists across all of the Great Lakes from Lake Superior to Lake Ontario on Sunday.
Much cooler air will move in behind a departing cold front over the warm waters of the Great Lakes. At the same time, a puddle of chilly air will form high above the surface in the upper levels of the atmosphere.
According to AccuWeather.com Chief Meteorologist Elliot Abrams, "These conditions often lead to heavy snow squalls during the winter. When they occur during the late summer and fall, occasionally, waterspouts can form."
The flow of cool air into the zone of warm, moist, rising air over the lake can cause small areas of rotation. As these swirls rise and tighten, a waterspout can form.
Lake water temperatures are in the lower 60s to near 70 degrees and the air passing over the Great Lakes, dipping to the upper 20s and lower 30s during the morning, will be cool enough to allow moisture to gather just above the surface.
According to Severe Weather Expert Henry Margusity, "Waterspouts are essentially weak, short-lived tornadoes over water. However, they do not need an intense thunderstorm to form. In fact, most form in an entirely different manner, compared to tornadoes."
While mostly a threat to small craft, occasionally they can wander onshore before dissipating, causing minor property damage. They often have the strength equivalent of an EF0 tornado.
The visible funnel is mostly caused by the condensation of the moisture due to the low pressure within the storm and not so much by surface water being drawn upward.
Regardless of whether or not waterspouts form, widespread showers and a few thunderstorms will affect the Great Lakes and areas downwind.
Cities such as Erie, Pa., Buffalo, N.Y., Grand Rapids, Mich., and Marquette, Mich., will be in store for a chilly, unsettled end to the weekend.
The risk of flooding downpours and gusty thunderstorms will spread toward southern Florida as a tropical disturbance spreads northwestward from Cuba.
Following a tropical threat for the United States Gulf coast next week, an uptick in tropical systems will continue for the next six to eight weeks.
After showers threaten to spoil outdoor plans over the weekend, Monday will feature great weather for the bank holiday in Wales and England.
On the heels of deadly Typhoon Mindulle, Typhoon Lionrock is poised to make landfall in Japan early next week with heavy rainfall, damaging winds and an inundating storm surge.
Relief from the heat baking Germany this weekend will come by early next week, but not before violent thunderstorms threaten northern areas to end the weekend.
The Bronx, NY (1990)
Strong thunderstorms dumped 4.24 inches of rain.
Nassau, NY (1990)
Thunderstorm winds overturned boat, injuring 12.
Mt. Washington, NH (1856)
A total of 3 inches of snow on peak of mountain.