12:45 PM (Tuesday) | *”Post-tropical” Teddy to bring accumulating snow to Greenland after pounding Nova Scotia with heavy rain, strong winds and high waves*
Paul Dorian
Teddy remains classified as a hurricane at mid-day (category 2) and is headed towards Nova Scotia, Canada. Later in the week, “post-tropical” Teddy is likely to result in some accumulating snow across southern Greenland. Images courtesy NOAA/NESDIS
Overview
There is a never-ending attempt by nature to balance things out in the atmosphere. For example, air will move from high pressure areas to low-pressure areas in an attempt to equalize and the movement is what creates wind. Another example of nature’s ceaseless attempt to balance things out has to do with tropical cyclones around the world. These storms act to bring transfer some and moisture from the tropics to the colder and drier higher latitudes and Hurricane Teddy is going to be a great example of this and may actually result in accumulating snow for the southern part of Greenland later in the week.
The storm track of Hurricane Teddy is shown here from its origin over the tropics to the North Atlantic Ocean (includes forecast of track next couple of days). Map courtesy wunderground.com, NOAA
Details
Hurricane Teddy originated just off the west coast of Africa earlier this month over the tropical part of the Atlantic Ocean (around 13 degrees (N)). At mid-day, Teddy remains classified as a category 2 hurricane with maximum sustained winds of 105 mph and a movement towards the NNW at 16 mph. It is undergoing a transition into an “extra-tropical” system with the familiar comma-shaped cloud pattern, but it still maintains a significant warm inner core. By the time Teddy reaches Nova Scotia, it will be considered a “post-tropical” cyclone and it’ll steadily weaken as it moves over the cooler waters of the Gulf Stream. Despite the weakening, Teddy is going to bring heavy rains and powerful winds to Nova Scotia from tonight into Wednesday and high waves to its southern coastline.
Post-tropical Teddy will actually result in some accumulating snow across southern Greenland later in the week. Map courtesy NOAA, tropicaltidbits.com
After a significant impact on Nova Scotia, the post-tropical Teddy will push to near or over Newfoundland, Canada and then it’ll get absorbed into a larger extratropical storm near Greenland later in the week. With a lot of cold high pressure now sitting over Greenland, the moisture field associated with post-tropical Teddy is likely to result in some snow accumulations; especially, across the southern part of Greenland at a latitude of 60+ degrees (N) – quite a long way from its origins over the tropical part of the Atlantic Ocean.
Meteorologist Paul Dorian
Perspecta, Inc.
perspectaweather.com
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