![]() One other part of forecasting an Alberta Clipper is to forecast its track from Northwestern Canada to Northeastern United States. The proximity of the redevelopment low pressure system to land can determine if the resultant storm skirts by the region with minimal snowfall or a closer track leading to higher snowfall. This causes a strong draw of moisture into the storm on favorable winds and can also cause a redevelopment low into a strong low pressure system in the Northeast, usually east of Massachusetts. This means that the direction from the northern part of the trough to southern part of the trough goes from northwest to southeast. The other way Alberta Clippers can pack a punch, which is usually weaker than when clippers phase to strengthen the system, is to have the trough that the low pressure system resides in turn negative. This occurred January 25-28, 2015 and resulted in snowfall over 30 inches in portions of eastern and central Massachusetts. So if moisture from a low pressure system to the south is able to phase, or combine into the system, which usually occurs in the Eastern United States, the clipper can redevelop off the East Coast into a strong nor’easter. The Alberta Clipper is known for containing plenty of cold air and an appreciable amount of energy, but a lack of precipitation. In many cases however, the Alberta Clipper can drop plenty of snow in a given region. Notice the strong jet stream from north to south in Western Canada, which could help to push the clipper farther south and should bring cooler air into the United States. GFS forecast model showing the clipper and trailing high pressure (added by author). However, the other part of the name, clipper, gives reference to how the system generally doesn’t drop much precipitation as a result of the area of low pressure being quite dry and moving quite fast through an area. They also have a strong high pressure system closely trailing the low pressure system so that the cold air usually comes rushing in with strong winds. This means they have quite the cold punch with them. These storms are called Alberta Clippers because they come southeast from Alberta, Canada to the Northeastern United States. THESE ARE THE 7 SNOWIEST CITIES IN THE U.S.After the weekend, the next storm that the Northeast will be watching comes in the form of an Alberta Clipper late Tuesday into Wednesday. Upper-level disturbances within that jet stream dip will dive down from Canada across the Midwest and shove the Alberta Clipper rapidly eastward with snow, gusty winds and falling temperatures along its path. When the weather pattern features a southward plunge of the jet stream east of the Rockies in the winter, it's relatively common for a clipper system to develop in this portion of western Canada. This moisture-mountain interaction causes an area of low pressure to form over this region. These moisture starved systems develop when moisture from the Pacific Ocean is directed toward the mountains of Canada's Alberta and British Columbia provinces. (Print Collector/Heritage Images / Getty Images) She was known for one of the fastest voyages on record, having accomplished the distance between Brittain and Port Phillip, Australia in seventy-three days. The Flying Dragon was built for the Australian trade, a vessel that has been celebrated for superior sailing qualities. File: The Sunderland Clipper Barque, "Flying Dragon", 1854.
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