%0 Journal Article %T On cold spells in North America and storminess in western Europe %+ Department of Meteorology [Stockholm] (MISU) %+ Bolin Centre for Climate Research %+ TROPO - LATMOS %A Messori, Gabriele %A Caballero, Rodrigo %A Gaetani, Marco %< avec comité de lecture %@ 0094-8276 %J Geophysical Research Letters %I American Geophysical Union %V 43 %N 12 %P 6620–6628 %8 2016-06 %D 2016 %R 10.1002/2016GL069392 %K North Atlantic %K precipitation %K Cold spells %K destructive windstorms %K jet stream %K extreme events %Z Sciences of the Universe [physics]/Earth Sciences/ClimatologyJournal articles %X We discuss the dynamical and statistical link between cold extremes over eastern North America and storminess over Western Europe, with a focus on the mid-latitude jet stream, the North Atlantic Oscillation (NAO) and the Pacific-North American Pattern (PNA). The analysis is performed on the European Centre for Medium-Range Weather Forecasts ERA-20C reanalysis. The large-scale circulation associated with the cold spells corresponds to advection of cold air from the Arctic region into North America and to a very zonal and intense North Atlantic jet, shifted persistently south of its climatological location. These features of the Atlantic jet are conducive to destructive windstorms and intense precipitation over a large part of Southern and Continental Europe and the British Isles. The cold spells are preceded by a negative NAO and followed by a positive PNA; however, we interpret the associated circulation anomalies as being distinct from these standard modes of climate variability. %G English %2 https://insu.hal.science/insu-01327494/document %2 https://insu.hal.science/insu-01327494/file/2016GL069392.pdf %L insu-01327494 %U https://insu.hal.science/insu-01327494 %~ INSU %~ UPMC %~ CNRS %~ LATMOS %~ GIP-BE %~ UVSQ %~ UNIV-PARIS-SACLAY %~ UVSQ-SACLAY %~ UPMC_POLE_3 %~ SORBONNE-UNIVERSITE %~ SU-SCIENCES %~ UVSQ-UPSACLAY %~ SU-TI %~ GS-ENGINEERING %~ GS-PHYSIQUE %~ INSTITUT-SCIENCES-LUMIERE %~ ALLIANCE-SU