Investigation of the passage of a derecho in Belgium

摘要: Abstract From the 7th July, 2010 until 14th 2010, a heat wave dominated weather in Belgium. Three major storm situations occurred during this period and all three caused severe damage. In paper, we discuss last case of July. That day, quasi-linear convective system (QLCS) crossed parts France, Belgium Netherlands very important wind damages at least 2 people were killed. Most damage was by straight-line but one tornado observed over north Netherlands. This complex induced favorable synoptic configuration for also timing favorable. frame Supercell project RMI, survey made most affected regions, which yielded useful information about origin losses. Careful examination radar imagery revealed some connections between internal mesovortices tracks enhanced As far as known, paper is first description derecho It time connection shown several country. During evolution QLCS, examples successive vortices found front system. Several accompanied or funnel cloud typically concentrated along elongated tracks.