DETACHED WARM FRONT - KEY PARAMETERS

by ZAMG


27 January 1995/00.30 UTC - Meteosat IR image; blue: thermal front parameter 500/850 hPa, green: equivalent thickness 500/850 hPa
27 January 1995/00.30 UTC - Meteosat IR image; blue: thermal front parameter 500/850 hPa, red: temperature advection 500/1000 hPa
27 January 1995/00.30 UTC - Meteosat IR image; yellow: isotachs 300 hPa, black: zero line of shear vorticity 300 hPa
The parameter distribution is very similar to the ideal situation described above. If the wind vectors at 500 hPa (green arrows) are compared to the relative wind vectors (red wind flags) in the pictures of the relative streams (see Meteorological physical background) differences in the directions can be observed at a height close to 500 hPa (298K isentrope). While the absolute winds are coming from north-western directions the relative streams are coming from north-eastern directions, which is very close to the orientation of the cloud structure.

SUB-MENU OF DETACHED WARM FRONT
METEOROLOGICAL PHYSICAL BACKGROUND
TYPICAL APPEARANCE IN VERTICAL CROSS SECTIONS