07 June 1997 - Forecast For 12.00 UTC And 18.00 UTC
07 June 1997/06.00 UTC - Meteosat IR image; yellow: positive vorticity advection (PVA) 500 hPa 06.00 UTC, green: positive vorticity
advection (PVA) 500 hPa 12.00 UTC, blue: positive vorticity advection (PVA) 500 hPa 18.00 UTC
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At 12.00 UTC the PVA maximum in the investigated area has moved from Brittany towards the mouth of the river Thames, approximately a hundred kilometres west of the position of the actual MCS at 12.00 UTC. At 18.00 UTC PVA values were low in the area just north of the Netherlands, the position of the MCS at that time. The system was already in a decaying state by then.