High pressure still looks set to build across Ireland next week drier and sunnier weather
After what has been a very wet and windy start to 2020 with temperatures also colder than average for some areas over the two months there finally is some good news with high pressure looking set to build across Ireland from the middle of next week.
Before we get to the end of this weekend the weather will stay rather unsettled with the risk of heavy rain at times.
As the saying goes for March “March comes in like a lion, out like a lamb”
First week will look at the forecast for the weekend.
FRIDAY 13TH MARCH 2020
Overnight that band of heavy rain will clear of to the east over the Irish sea with mist and fog developing and some clear spells also. Temperatures ranging between 2C to 5C.
SATURDAY 14TH MARCH 2020
Starting of dry on Saturday morning with some mist or fog in places but later in the morning another spells of rain will move into the southwest of Ireland extending to all areas over the afternoon with heavy falls in places leading to the risk of flooding. Rain will clear later in the evening for many areas but lingering across the east and south. Temperatures will range between 7C to 11C. Saturday will be a windy day with gusty southwest winds for many areas.
Rain will linger early in the night across the east and south but it will be drier elsewhere with a mixture of cloud and some clear spells. Temperatures will range between 2C to 5C.
SUNDAY 15TH MARCH 2020
Sunday morning rain will clear the east and south with dry weather for many areas for a short time over the morning but showers will extend in from the northwest affecting northwestern counties over the morning some which will be heavy. Showers will extend across the rest of Ireland over the afternoon with some heavy with the risk of hail and thunder. Temperatures will range between 6C to 9C.
Later in the evening and overnight it will become dry nationwide across Ireland with clear spells, It will turn cold nationwide with a widespread frost forming and icy patches developing on roads with temperatures between -2C to 2C.
MONDAY 16TH MARCH 2020
Monday looks set to start of cold with any frost and ice clearing over the morning, There will be good sunny spells to start on Monday but cloud again will increase over the afternoon and extend to all areas by the evening. Temperatures will range between 6C to 9C.
On Monday evening a spell of rain will move into the west and northwest extending across Ireland overnight but breaking up and becoming lighter as it moves eastwards.
TUESDAY 17TH MARCH 2020(ST.PATRICK'S DAY)
At present Tuesday St.Patrick’s day looks set to see rain across Ireland and this then clearing eastwards later in the evening with a cold night. Detail are yet uncertain on this.
HIGH PRESSURE
On Wednesday march 18th we then look likely to see a change in the weather pattern with the jet stream been pushed to the north of Ireland and Scotland which is a good thing if you like milder weather as with the Jet stream to the north it means we will be on the milder side rather than the colder side of the jet.
Midweek temperatures will be in single figures by day for many with temperatures below freezing at night with the risk of frost.
Towards the end of next week at present it shows temperatures possibly rising into the low to mid teens with good dry and sunny weather nationwide as the higher pressure strengthens.
It will be really next Thursday onward into next weekend when we see the pattern change.
The below images show the high pressure building later next week and next weekend taken from the ECMWF model
At the end of the Month details are still a bit sketchy but it looks like the southeast or easterly flow will continue with the current GFS model hinting at a colder easterly flow to end the Month again.
With the GFS showing this current set up it is in line with a sudden warming which currently is taken place in the Stratosphere which sometimes can cause the normal westerly pattern we see here in Ireland switch to a easterly flow or also know as zonal winds. This normally can happen within 10 to 14 days of the warming event and was the cause of the beast from the east back at the end of February and start of March 2018 and was one of the reasons I was able to forecast that event up to two weeks away.
I will keep you updated over the week and weekend on the latest so stay tuned.
Kenneth from the Donegal Weather Channel