14 - 15 JUNE 1998 - VSRF: 15 JUNE/06.00 - 18.00 UTC

by FMI

Following the development of the frontal system over Eastern Europe we now look at NWP-fields from 06.00, 12.00 and 18.00 UTC on the 15th of June. In Fig. H73 below, a rather slow west-northwest movement of the warm front TFP-zone can be seen over the next 12 hours, whilst the Cold Frontal TFP-zone moves rapidly northward.
15 June 1998/06.00 UTC - Meteosat IR image; yellow: thermal front parameter 500/850 hPa 06.00 UTC, green: thermal front parameter 500/850 hPa 12.00 UTC, blue: thermal front parameter 500/850 hPa 18.00 UTC
The temperature advection (H74) again follows TFP indications. The WA maximum remains very distinct with slow westward movement and slight intensification.
15 June 1998/06.00 UTC - Meteosat IR image; yellow: temperature advection - WA 06.00 UTC, green: temperature advection - WA 12.00 UTC, blue: temperature advection - WA 18.00 UTC
As above the Showalter index (H75) suggests a westward shifting of the Warm Front across Finland.
15 June 1998/06.00 UTC - Meteosat IR image; yellow: Showalter index 06.00 UTC, green: Showalter index 12.00 UTC, blue: Showalter index 18.00 UTC
SUB-MENU OF 14 - 15 JUNE 1998
15 JUNE/06.00 UTC: FRONTAL DIAGNOSIS
OVERVIEW OF SATELLITE FEATURES IN THE SYNOPTIC SCALE DURING THE OBSERVATION PERIOD