First cold snap of the season (Week commencing the 18th of November)
Issued on Friday 15th November 2024, valid until further updates
OVERVIEW
ADVISORY issued as the weather becomes significantly colder.
Turning much colder next week: high confidence for a spell of cold and wintry weather across the country from Monday onwards and throughout much of next week with frost, ice and showers, most widespread in the north and parts of the west.
Uncertainty for Sunday-Monday: Forecast still uncertain for Sunday night into Monday as a low-pressure system tracks over/near Ireland. Persistent rain over much of the country, heaviest over Ulster with the possibility of some sleet and snow on Monday.
Tuesday to Friday – Main impacts: Hazardous ground conditions due to frost and ice with cold day and night-time temperatures. Expect poor visibility in any wintry showers.
METEOROLOGICAL SITUATION
Fig 1- Airmass temperatures showing cold Artic air sinking over the country. ECMWF 00z Run Friday 15th November.
Met Éireann’ s Deputy Head of Forecasting Liz Coleman, says:
“After an unusually mild start to November, people are going to get quite a shock as the temperatures plummet next week, which is why we have issued an Advisory for Ireland.
Details are uncertain with the exact track of a low-pressure system on Sunday night and during Monday, but at present, some heavy and persistent rain is expected in the west and north with the possibility of some sleet and snow over parts of Ulster on Monday. Met Éireann will be monitoring this situation closely over the weekend.”
Liz continues:
“However, there is a high degree of certainty that by next Tuesday it is going to turn much colder as an Arctic airmass sinks over the country from the north. Daytime temperatures will often range around 2 to 6 degrees with night-time temperatures widely falling below freezing, bringing widespread frost and ice. The northerly airflow will also bring showers of sleet and snow, these most frequent over the northern half of the country but there is potential for some showers to reach further south. These conditions will bring some hazardous travelling conditions, travel disruptions and poor visibility”
The extent of the wintry showers in terms of snow is still unclear, but we will have more information as Met Éireann’ s high resolution model comes into play, which provides forecast information two days ahead.”
The cold northerly airmass looks set to linger over Ireland until next Friday at least, but possibly into next weekend too, although uncertainty increases after Friday (22nd).
Fig 2- Surface temperatures dropping by day and night next week. ECMWF 00z Run Friday 15th November.
WARNINGS AND POTENTIAL IMPACTS
Met Éireann will issue warnings as necessary over the coming days with the following potential impacts expected:
Hazardous travelling conditions due to frost and ice patches
Poor visibility in wintry showers
Travel disruption
Animal welfare issues
Stay up-to date with the forecast and the warnings on met.ie, the Met Éireann app or Met Éireann socials (@meteireann).
First cold snap of the season (Week commencing the 18th of November)
Issued on Friday 15th November 2024, valid until further updates
OVERVIEW
METEOROLOGICAL SITUATION
Fig 1- Airmass temperatures showing cold Artic air sinking over the country. ECMWF 00z Run Friday 15th November.
Met Éireann’ s Deputy Head of Forecasting Liz Coleman, says:
“After an unusually mild start to November, people are going to get quite a shock as the temperatures plummet next week, which is why we have issued an Advisory for Ireland.
Details are uncertain with the exact track of a low-pressure system on Sunday night and during Monday, but at present, some heavy and persistent rain is expected in the west and north with the possibility of some sleet and snow over parts of Ulster on Monday. Met Éireann will be monitoring this situation closely over the weekend.”
Liz continues:
“However, there is a high degree of certainty that by next Tuesday it is going to turn much colder as an Arctic airmass sinks over the country from the north. Daytime temperatures will often range around 2 to 6 degrees with night-time temperatures widely falling below freezing, bringing widespread frost and ice. The northerly airflow will also bring showers of sleet and snow, these most frequent over the northern half of the country but there is potential for some showers to reach further south. These conditions will bring some hazardous travelling conditions, travel disruptions and poor visibility”
The extent of the wintry showers in terms of snow is still unclear, but we will have more information as Met Éireann’ s high resolution model comes into play, which provides forecast information two days ahead.”
The cold northerly airmass looks set to linger over Ireland until next Friday at least, but possibly into next weekend too, although uncertainty increases after Friday (22nd).
Fig 2- Surface temperatures dropping by day and night next week. ECMWF 00z Run Friday 15th November.
WARNINGS AND POTENTIAL IMPACTS
Met Éireann will issue warnings as necessary over the coming days with the following potential impacts expected:
Stay up-to date with the forecast and the warnings on met.ie, the Met Éireann app or Met Éireann socials (@meteireann).
“Be Winter Ready”: Follow recommendations before, during and after severe weather on gov.ie – Be Winter Ready (www.gov.ie)
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