Weather Events

In general observed precipitation is significantly weaker than in fronts, or there may be no precipitation at all.

Parameter Description
  • No active front: large areas with no precipitation
  • Modification of old systems: remains of precipitation activity, light rain and drizzle
  • Upper Level Low: Precipitation at tear - off stage
Temperature No connection (stationary)
Wind (incl. gusts) No connection (stationary)

Example: To the rear of a synoptic scale trough, in the area of northern Spain and SW France.

19 October 2002/06.00 UTC - Meteosat IR image; weather events (green: rain and showers, blue: drizzle, cyan: snow, red: thunderstorm, yellow: fog, black: no precipitation)