Charts ( up to T120 ) Summer to Winter 2018 ** READ MOD NOTE IN FIRST POST**

A couple of cool nights coming up. Weds night just a bit cool in Northern counties.

Getting breezy tomorrow afternoon, windy on coasts. Marine warning in operation.

Met Eireann

Status Yellow - Small Craft Warning
Southwest winds will increase to force 6 on Tuesday afternoon and evening on Irish Coasts from Carnsore Point to Valentia to Slyne Head.

Issued: Monday 18 June 2018 22:00

Clear skies and calm conditions and a cool airmass giving very cold readings early in the morning.

Cloud looks to be an issue this week with areas experiencing mist and drizzle and later rain by weds according to the ECM.

The ECM 12Z showing more rain then being forecast for Weds with the passage of an upper Low, small possibility of thunder also ( more so the S ). Tricky forecasting I would imagine this week with troughs and weak fronts and temperature there to kick off convection at times with enough diurnal heating perhaps.










Thurs looks generally cloudy / some thunder breaking out in the SW later in the afternoon perhaps.

ECM 12Z and GFS 12Z showing Sunday before any real rain comes through the country. ECM showing not much making it over to the Eastern half on this run.

GFS showing a different story which would be welcome by many I'm sure. Couldn't tell you which way it will go.

American models not showing much if any rain on Thurs night/ Fri morning. ECM a bit less to what was modelled yesterday, ICON eased off a good bit on totals, ARPEGE showing a decent bit of rain overnight into Fri. Met Eireann's Harmonie showing light rain.

ECM showing best temps in the S and SE in the coming days with Pressure highest in the S. Probably a big contrast between N and S over the weekend.

Rain moving down from the NW to SE early Fri ,becoming lighter on its way. Amounts in general quite low apart from the NW/ N region.

All depends on the track of the messy frontal system determining what rainfall totals we get Weds /Thurs. Potential there for decent amounts and ECM leading the way in that respect. The American models keeping the track further W. HARMONIE showing SW, S and W probably getting the most but not showing as much as the ECM I would think.

Much of the rain missing the country on Weds apart from what looks like a weak occluded front, Thurs looking like a better chance of rain with a trailing cold front moving slowly up over the country. LP moving closer leading in to spells of windy wet weather at times over the weekend.

ECM showing rain approaching the SW around 3.00 - 4.00AM Predicted to be just light as it moves across the Eastern half of the country. Some heavy falls showing up for the SW. Some convective possibility also embedded in the front possibly producing some locally heavy rain also as it advances inland.

American Models similar to the ICON. I think it will be more like a cross between the ECM and HIRLAM.








ICON very light prediction, think this is an Outlier

I think all the models underestimated the rainfall totals for today , ECM probably closest.

Tomorrow rain arriving on the W/ SW coasts early morning as light rain peters out in E . Heavy rain moving in from the S Fri evening and moving up over much of the country in the early hours of Sat and clearing the N mid morning. Good totals predicted.




6 hour totals







Sat 07.00Predicted Total precipitation for the previous 24 hrs.

Windy again tomorrow on Atlantic coasts and breezy across the country through the day. A spell of windy blustery weather Saturday .

ECM showing the next main band of rain missing us in the early hours part from the S and SE coasts. The ARPEGE and HIRLAM bring more of it over the country. Met Eireann going with Rain along southern coastal counties spreading inland to much of East Munster and West Leinster by morning. Heavy in places.

Could get windy along Southern coasts in the early hours of Monday morning.

A wave LP system approaching the SW Tomorrow with fronts moving in over the country from early bringing rain to all parts eventually. Windy too and could get a bit windy in the late afternoon / early evening along the SE and E.