Weather / Heavy Alpine snowfall in January 2019 connected to atmospheric blocking

In January 2019, an episode of extreme, record-breaking snowfall hit the northern part of the Alps. The event was linked to persistent North Atlantic blocking, which transported moisture from the North Atlantic towards the Alps. At the same time, the polar vortex was displaced over the North Atlanti...

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Bibliographic Details
Published in:Weather
Main Authors: Yessimbet, Kamilya, Ossó, Albert Castillon, Kaltenberger, Rainer, Magnusson, Linus, Steiner, Andrea
Format: Article in Journal/Newspaper
Language:English
Published: Universitätsbibliothek 2022
Subjects:
Schneefall
Blocking
Schneefall in den Alpen
Snowfall
North Atlantic
Online Access:https://doi.org/10.1002/wea.4020
https://unipub.uni-graz.at/doi/10.1002/wea.4020
https://resolver.obvsg.at/urn:nbn:at:at-ubg:3-24131
Description
Summary:In January 2019, an episode of extreme, record-breaking snowfall hit the northern part of the Alps. The event was linked to persistent North Atlantic blocking, which transported moisture from the North Atlantic towards the Alps. At the same time, the polar vortex was displaced over the North Atlantic, split, and a major sudden stratospheric warming occurred. We discuss the possible role of blocking in the polar vortex split and the onset of the sudden stratospheric warming as well as its implications in predicting the snowfall event. Fonds zur Förderung der Wissenschaftlichen Forschung W 1256 Version of record

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