Rapid Cyclogenesis - Weather Events

by KNMI and ZAMG

Parameter Description
Precipitation
  • Intense precipitation associated with the Warm Conveyor Belt.
  • Thunderstorms within the inner edge of the cloud head at the western side of the surface low.
Temperature
  • Strong rise in surface temperature within the area of Warm Conveyor Belt.
Wind (incl. gusts)
  • Strong winds within the area of the cloud head. In extreme cases winds reaching hurricane force.
  • Very strong gusts in the transition zone between dark and white in the WV channels near the cold front and the cloud head
Other relevant information
  • Very strong pressure falls and rises. In the initial stage, falls ahead exceed the rises behind.

31 January 2008/18.00 UTC - Meteosat 9 IR10.8 10.8 image; weather events (green: rain and showers, blue: drizzle, cyan: snow, red: thunderstorm with precipitation, purple: freezing rain, orange: hail, black: no actual precipitation or thunderstorm with precipitation)
Due to the high winds associated to a RaCy Meteo Alarm shows accordingly a wind warning for Norway.
31 January 2008/03.59 UTC - MeteoAlarm showing warnings issued by the national meteorlogical services
For most of North-western Europe warning are issued. With the Rapid Cyclogenesis heading towards the Norwegian coast alternatively a red warning for high wind speeds is issued. Below a zoom of Norway can be seen to which areas of Norway the warnings are relevant.
31 January 2008/03.59 UTC - MeteoAlarm showing warnings issued by the national meteorlogical services
Menu Of Rapid Cyclogenesis
Typical Appearance In Vertical Cross Sections
References