Ok lets look at this in more detail with current guidance. This is my own opinion and don't take it as gospel.
Let us first look at the coastal flooding risk
Current moon phase is a waning crescent = Good (Less high tide Height)
Strongest winds should hit south/south eastern parts come evening time and this happens to be High Tide
Now Tidal surge is unknown but there could be a good push of water from the wind and the sea will be that bit higher anyway due to depression coming up from the south.
Keep an eye on any official coastal flood warnings.
Now I was looking at 1987 storm development that hit southern England on October 15th and seeing if anything was similar.
It's the 975 just off the north west of Spain
And Wednesday 15th 2012
Now we see our 995 depression is much the same location however intensity at this stage is different by 20mb and that's alot. Colder polar air was making it's way into the rear of the 1987 storm and the temp difference and jet stream made it more intense.
1987 had a stronger jet stream. 220 km/h
Wednesdays 15th jet stream 170 km/h
She's still gonna pack a punch
Winds are usually strongest on south eastern quadrant of low pressure systems and this baby could hit south eastern Ireland for a short time with gusts of 45kts +
It should be a baby full of energy feeding off the warmer sea and the warm upper air before it dumps its contents on us. I think the rain part of storm could be very heavy at times and give some local flooding but push through fairly quickly for many and the winds lasting longer. Whatever happens its not going to be pleasant and I can just hear some of you already come Wednesday night, "Eh where's me Storm"
Remember this could very easy go in the bin as exact track of system will have a big say on who gets what. This is just an idea.Anyway that's my 2 pence worth.