A Derecho in Europe: Berlin, 10 July 2002

An analysis of selected cases of derecho in Poland

“…Low pressure and the presence of mountains, alongside thermodynamic instability caused by very high temperature and humidity, were among the factors increasing the likelihood of a derecho. The conditions found conducive to derechos in Poland are comparable to those found conducive to them elsewhere in Europe (Gatzen, 2004;Punkka et al, 2006;Pucik et al, 2011) and in the US (Johns and Hirt, 1987;Weisman, 1993;Evans and Doswell III, 2001;Coniglio et al, 2011). Notably, however, the intensity of the phenomena recorded in America tends to be much greater than in Europe.…”

Hindcast experiments of the derecho in Estonia on 08 August, 2010: Modelling derecho with NWP model HARMONIE

“…There has only been one previously documented derecho event in Northern Europe, occurring in 2002 in Finland (Punkka et al, 2006). However, there have been several documented derecho events in Central, Western and Southern Europe (e.g., Gatzen, 2004;Gatzen et al, 2011;Hamid, 2012;López, 2007;Pučik et al, 2011;Gospodinov et al, 2014Gospodinov et al, , 2015Celiński-Mysław and Matuszko, 2014). Atmospheric conditions during derecho events and climatology of derechos have been widely studied in the United States (e.g., Evans and Doswell, 2001;.…”

A wavelet‐based analysis of convective organization in ICON large‐eddy simulations

“…Storms in a strongly sheared environment develop quickly and can cause severe damage through strong wind gusts, hail, heavy rainfall with flash floods and sometimes also tornadoes (e.g. Gatzen, ; Barthlott et al. ).…”

“…Storms in a strongly sheared environment develop quickly and can cause severe damage through strong wind gusts, hail, heavy rainfall with flash floods and sometimes also tornadoes (e.g. Gatzen, 2004;Barthlott et al, 2017). Hence, synoptic characteristics and the large-scale forcing play an important role in convective organization.…”