CHRISTMAS 2018 WEATHER FORECAST - LONG TERM FORECAST RISK OF IT TURNING COLDER INTO THE NEW YEAR
MONDAY 24TH DECEMBER 2018 (CHRISTMAS EVE)
On Monday morning another spell of rain will move across Munster and south Leinster. This rain will clear around midday with mostly dry but cloudy conditions everywhere. A few shower may occur over Western parts of Connacht over the early afternoon but it will be dry everywhere over the evening and night time as the big man himself arrives Santa. Temperatures will range between 6C to 10C. Temperatures over night will drop as low as 0C to 9C
TUESDAY 25TH DECEMBER 2018 (CHRISTMAS DAY)
Tuesday morning (Christmas day) will start of dry with risk of frost over Ulster but dry everywhere. There will be mostly cloudy conditions for most away from Ulster where there will be some bright and sunny spells over the morning. Christmas day looks to be dry around Ireland but mostly cloudy with the best risk of bright and sunny spells across far northern areas. There will be the risk of a few showers for a time over southern coastal county.
Continues below
OUTLOOK
On Christmas eve high pressure moves over Ireland bring a much needed break from all the wet and windy weather so far in December and the good news is that it looks as it will stay in place at least up until the weekend bring much dry weather. There will be risk cooler conditions next week but noting severe. The weather over the Christmas period will not have any effect on it but heading into the new year and January i would advise people to prepare for much colder weather as there is signals and high chance of snow and cold temperatures in the forecast as anticipated changes in the upper atmosphere over the North Pole during late December stage may impact the polar vortex due to a strong sudden stratospheric warming which looks as it will occur in the next week to 10 days and when this happens it increases the changes of colder weather and zonal winds. As the polar vortex becomes distorted, the jet stream tends to buckle with large southward dips and northward bulges. Sudden stratospheric warming also occurred at the start if February in 2017 which lead to that much colder spell near the end of the month (the beast from the east).
It can some time take up to 10 days or more for the impacts of the (SSW) to effect us and will be one which will need to be watched rather closely
WHAT IS TO POLAR VORTEX?
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