A weather bomb is advancing towards the North American continent

Wednesday, December 30, 2020 at 6:02 PM – Low pressure records could be shattered near Canada just in time for the arrival of 2021, as an intense weather bomb progresses towards the coasts of Alaska .


The freezing cold which has taken its toll in Siberia is progressing slowly towards the east. The pronounced temperature anomaly that is present in this part of the world collides with a sub-tropical current, well encamped in southern Japan, all combined with a powerful jet stream from the Pacific. Result: the conditions gradually come together to push the atmosphere to its limits.

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Intense depression could result. Its pressure is likely to drop quickly in eastern Japan, with an expected loss of nearly 60 milibars in less than 24 hours. It could therefore claim to be a weather bomb, since a system must lose at least 24 milibars in less than 24 hours to qualify as such – a mark that the depression would have comfortably passed.

The intense disturbance is currently continuing its slow progression towards the Bering Sea, and would ultimately affect the coasts of Alaska.

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It is also possible that new brands will be listed on the Alaskan table, if it continues in this direction. The record so far is 924 milibars for this part of the world, and the system is getting dangerously close to it, with a pressure of 925 milibars.

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All this accumulated energy will therefore wreak havoc all over the west coast of the North American continent, including British Columbia. Everything indicates that the powerful jet stream could create the right conditions for the development of new strong disturbances, which would hit this region in the coming days.

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An atmospheric trough will also form on Canada’s west coast, opening the door to the freezing cold of the Arctic.

Impacts to Quebec

On the other hand, the particular atmospheric pattern will allow regions to the east of the country (including Quebec) to be spared from freezing temperatures.

The mercury would therefore flirt with the freezing point on numerous occasions in southern Quebec for the first days of January.


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