Occlusion: Cold Conveyor Belt Type - Weather Events

by ZAMG and KNMI


Parameter Description
Precipitation
  • Intensive precipitation within and especially ahead of the Occlusion point.
  • Rainbands typically oriented parallel to the occluded front (5-10 km wide).
Temperature
  • Rising temperature associated with the passage of the secondary Occlusion.
Wind (incl. gusts)
  • Strong winds circulating around secondary vortex, veering of the wind associated with the passage of the secondary Occlusion.
Other relevant information
  • rear part of cloud spiral close to Occlusion point, possibly situated to the left exit region of a jet streak, is predestined for convective development due to potentially unstable troposphere.

28 March 1997/12.00 UTC - Meteosat IR image; weather events (green: rain and showers, blue: drizzle, cyan: snow, purple: freezing rain, red: thunderstorm with precipitation, orange: hail, black: no actual rain or thunderstorm with precipitation)

Menu Of Occlusion: Cold Conveyor Belt Type
Typical Appearance In Vertical Cross Sections
References