Heavy rain associated with a frontal system ahead of low pressure near the southwest coast may bring 20-30 mms of rain to parts of the south today, and this heavy rain will probably spread towards Leinster later this afternoon and into this evening. The low will circle around and promote a second wave of heavy showers tomorrow in many of the same areas, with further rains on Friday. Total amounts over three days could exceed 50 mms in some places and lead to some spot flooding.
This thread is for weather forum members to post further observations and ideas about what counties and regions are at risk of seeing heavy rainfalls as we go forward (and I go to bed). Currently rain is reported as rather heavy in Kerry and west Cork. I would expect parts of Clare, Limerick, Tipps, rest of Cork and Waterford to see downpours this morning, and the inland southeast mid-day. While amounts may not be exceptional, there is some potential for heavy thunderstorm activity to develop later in this band and increase the amounts and intensity of rainfall. Watch for this in Kilkenny, Laois, Carlow, Wexford and later Wicklow, Kildare, Dublin and Meath.
Overnight the heaviest rains are likely to spread north of Dublin and into Ulster eventually.
Tomorrow the plan seems to be for a general repeat of the same cycle as the low pressure reloads.
Freezing levels are falling low enough that hail may become more of an issue with the heavier thunderstorms.
On the bright side, parts of eastern Ireland may have sunshine for several more hours before this weather system gets close enough to spread cloud in from the south. The sunshine could last to mid-afternoon in some parts.