Orographically Induced Convergence Lines - Weather Events

by ZAMG and DHMZ


Since the nature of the clouds in the Convergence Line is convective, it is clear that also the corresponding weather events are similar to the ones connected to other types of convective events.

This conceptual model can be used to detect "small" showers, which do not result in large areas of heavy precipitation, but can result in localised heavy precipitation in the mountains. Thunderstorms can also appear in cases with more developed single cells.

Parameter Description
Precipitation
  • Showers even thunderstorms, but not normally severe ones. Showers can locally result in high amounts of precipitation.
Temperature
  • Temperature drop during showers
Wind (incl. gusts)
  • Gusts
Other relevant information  

24 July 2006/12.00 UTC - Meteosat 8 HRVIS image; actual weather from synop measurements
24 July 2006/15.00 UTC - Meteosat 8 HRVIS image; actual weather from synop measurements
Weather events on 24 July 2006 at 12.00 and 15.00 UTC clearly show the development of showers and thunderstorms along the mountain chains over Italy and Dinaric Alps.

Menu Of Orographically Induced Convergence Lines
Typical Appearance In Vertical Cross Sections
References