02 - 03 AUGUST 1997 - OVERVIEW OF SATELLITE IMAGERY FOR 03 AUGUST 06.00 UTC

by ZAMG


03 August 1997/06.00 UTC - Meteosat IR image; SatRep overlay: names of conceptual models
03 August 1997/06.00 UTC - Meteosat WV image
03 August 1997/06.00 UTC - Meteosat VIS image
03 August 1997/06.00 UTC - Meteosat IR image; red: height contours 1000 hPa, green: height contours 500 hPa
The images show the cloud configurations in the three Meteosat channels. Although the Upper Level Low (ULL) is now indicated in the SatRep (superimposed on the IR image), clear indications of an Upper Level Low cannot be extracted from the IR image alone (left image top). Only WV and VIS structures together with the numerical model key parameters (right image bottom) contribute to this diagnosis. In the VIS image (left image bottom) a circulation centre with two cyclonically curved cloud bands can be identified around 53N/25W; this is the region where also a circulation centre can be noticed within the WV band (right image top).

The intensive dry Black Stripe in the WV is now clearly to the south of the Upper Level Low spiral structure just mentioned; it moved to south Ireland and is connected with the intensified cloud area east of Ireland and a newly developed cellular cloud area over Ireland. This is a new aspect during this case study which could be recognised only now: the encouplement of the spiral feature of the Upper Level Low and the Dark Stripe at the rear of the frontal cloud bands might be an additional factor for an imminent Rapid Cyclogenesis.


SUB-MENU OF 02 - 03 AUGUST 1997
SUMMARY
KEY PARAMETERS ON ISOBARIC SURFACES FOR 03 AUGUST 06.00 UTC