Severe weather

Severe weather, even extreme weather event or weather anomaly is a collective term for extreme weather events. These weather events often cause significant property damage, disaster and danger of life for many people.

Criteria

Extreme event

Extreme events in the context of meteorology weather conditions and weather patterns (shown in weather elements ) in their course which deviate significantly from the average. The base is a climatological normal period, a geographical reference to a climate classification, as a measure of exception, the annual nature of the weather elements and other impact factors (such as the high water level), as well as the insurance claim or the aggregate ( insured and uninsured direct damages, consequential damages and recovery, including victims). The term is no precise definition is based, but is a pragmatic expression of the documentation of climate and weather in climate research or Insurance: " Extreme events are events that deviate significantly from the average and thus are extraordinary. It just depends on the specific application from how strongly this deviation must actually have to classify an event as extreme. "

Extreme events are of particular historical and economic importance. As climatological indicators they are unsuitable mechanism: they occur very irregularly, and secondly must the mean of a normal period to be known in order to classify a weather anomaly as such can. However, the current long-term average value derived exactly from the incoming weather events together, current extreme events can therefore be compared only with expired tax periods / be put in context.

Storm

The German Weather Service defines the following events as storms, when these thresholds are exceeded:

The following events are still used for severe weather warnings from the meteorological services:

  • Hail
  • Fog
  • Extremely high temperature ( heat waves, heat anomalies) extremely low temperature, cold anomalies
  • Droughts (with the consequence of forest fire risk)
  • Avalanche danger

The following events are generally regarded as more severe weather:

  • Blizzard ( snow storms in North America )
  • Sandstorm
  • Tornado ( whirlwind, tornado, Tropical Cyclone - the names gale / storm are parallel, as the name for the strength )

In addition, since the year 1993 by the International Civil Aviation Organization ( ICAO) nine Volcanic Ash Advisory Centres which monitor the world's airspace on volcanic ash and to warn if the air traffic.

Severe weather warning services

  • German Weather Service ( DWD)
  • MeteoAlarm the EUMETNET
  • Skywarn, voluntary observation network
  • Weather Alert, Free weather warning from the cantonal building insurance, furniture and SF Meteo
  • Severe Germany
  • WIND severe weather warning system " Weather Information on Demand"
  • Austrian Severe Weather Center
  • German warning service, partly paid warning service which sends the official warnings of the DWD via SMS, email, fax or pager

Examples of historical storms

  • List of historical disasters (worldwide, including weather events )
  • List of weather events in Europe Floods and natural disasters in Saxony
  • List of storm surges along the North Sea
  • Floods: Refer to the individual rivers, such as the Rhine # flood, Elbe; see also Danube flood in 2002, floods in Central Europe in 2013
  • Omega situation, with a list of highly stable highs in Europe ( heat anomalies, droughts )
  • Vb - weather conditions, with a list of typical Südstau - heavy precipitation events in the Alpine and Karpathenraum
  • Significant tornado events ( examples for Europe )
Climatology Deutscher Wetterdienst Black ice Thaw (weather) Dust storm List of severe weather phenomena Storm tides of the North Sea
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