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Average trajectory of a clipper. An Alberta clipper, also known as an Alberta low, Alberta cyclone, Alberta lee cyclone, Canadian clipper, or simply clipper, is a fast-moving low-pressure system that originates in or near the Canadian province of Alberta just east of the Rocky Mountains and tracks east-southeastward across southern Canada and the northern United States to the North Atlantic Ocean.
A bomb cyclone is a storm that strengthens so fast that the central atmospheric pressure plunges 0.71 of an inch (24 millibars) or more in 24 hours or less. The central pressure in Tuesday's bomb ...
Map shows forecast for bomb cyclone storm developing over the Pacific Northwest / Credit: CBS News ... When an atmospheric river and bomb cyclone occur at the same time, a major weather event is ...
Get the Alberta, AB local weather forecast by the hour and the next 10 days.
Mesoscale convective systems are thunderstorm regions which may be round or linear in shape, on the order of 100 kilometres (62 mi) or more across in one direction but smaller than extratropical cyclones, [2] and include systems such as tropical cyclones, squall lines, and mesoscale convective complexes (MCCs), among others.
Pacific Northwest windstorms, sometimes colloquially known as Big Blows, [1] are extratropical cyclones which form in the Pacific basin, and affect land areas in the Pacific Northwest of the United States and British Columbia, Canada. They form as cyclonic windstorms associated with areas of low atmospheric pressure that track across the North ...
A “once in a decade” bomb cyclone lashed the northwest United States and parts of Canada early Wednesday with hurricane-force wind gusts –– leaving at least one person dead and hundreds of ...
The cone represents the probable position of a tropical cyclone's circulation center, and is made by drawing a set of circles centered at each forecast point—12, 24, 36, 48, and 72 hours for a three-day forecast, as well as 96 and 120 hours for a five-day forecast. The radius of each circle is equal to encompass two-thirds of the historical ...