Hello all.
So I am aware that there are at least 3 spanish plume regimes that lead to severe thunderstorms in the UK, ireland and northwest Europe. The classical spanish plume, the modified spanish plume, and the european easterly plume. However, I am wondering if perhaps there could be a sub classification of the classic spanish plume?
For instance, the classical spanish plume often leads to severe thunderstorms that are typically confined to southeast England, and not effecting Ireland, or the north and west of the UK. Yet it seems that in rare cases, the classic spanish plume has lead to severe thunderstorms much further north and west. June 28th 2012 is one such example. I also recall the severe thunderstorms of August 31 2005 as another example.
Of spesific interest to me were a few things mentioned in the estofex convective outlook for that day. ““models show deepening low pressure system moving from northern bay of biscay to southeastern Ireland”.
A surface cold front moved across Ireland on that day, and a wave formed along the front over westcentral Ireland around midday, which is probably what lead to the severe thunderstorms in the Limerick area which is where I live.
A very similar situation took place on July 25-26 1985. This situation lead to one of irelands most violent thunderstorm events on record.
I have noticed that alright. The only write up I could find about August 31 2005 was a few sentences written in the British isles weather diary for 2005. I think a cold front moved across Ireland and western Scotland? Unfortunately, my screen reader doesn’t read charts or graphical information. But it is disappointing that there are no articles written about this particular event. It was really quite outstanding in the Limerick area and I had rarely experienced anything like it since.
