Tuesday, 18 November, 2014 Forecasts for Ireland TODAY ... Some dense fog patches are likely for several hours this morning, mostly in central regions, but sunshine could break through eventually while some coastal areas will enjoy plenty of sun and mild highs near 10 or 11 C. There could be one or two spots that stay foggy or under low cloud and fail to warm up that much (6-8 C). Winds light to moderate easterly will begin to increase from a southeasterly direction by late in the day across the south and west. TONIGHT ... Clear intervals with fog patches in parts of north and east, lows around 2-4 C. Cloudy with occasional rain and moderate southeast winds central, west and south, lows 4-7 C rising to near 10 C in Kerry. Rainfalls of about 5-10 mm in west Munster. WEDNESDAY ... Rain will edge further north, bringing 10-15 mm to some parts of west, central and southeast. However, it may remain dry for parts of east Ulster and adjacent northeast Connacht, north Ulster. Highs will reach about 10-12 C. Moderate southeast winds will tend to weaken later in the day. THURSDAY ... Rain may continue intermittently in the south and west, but some brighter intervals will develop during the day elsewhere. Lows near 5 C and highs 8-10 C. FRIDAY ... Rain at times, mild, southeast winds 30-50 km/hr with some higher gusts near Atlantic coasts, lows near 5 C and highs near 11 C. WEEKEND OUTLOOK ... Continued rather mild but some slightly colder air will be edging into northern counties from both the west, while some even colder conditions will be moving into eastern Britain. Despite those changes, most of Ireland will stay relatively mild with highs 8-11 C, slight frosts possible in a few locations, and greater risk of showers including some hail in Ulster and Connacht. There continue to be faint signs of a more significant cooling trend towards the end of the month. The mild sector now over Ireland and most of western Europe is not particularly strong and has managed to remain unscathed mainly because arctic cold is pouring south in two other regions of the hemisphere (North America and central Asia) so there isnt much left to attack this weak ridge, but at the same time, if those areas of cold advection weaken then colder air could begin to circulate around stagnant high pressure in Scandinavia. One model is showing quite a cooling trend but others just have weak slightly below average cold by about the 27th. North America continues to see some near-record cold and heavy snow in the Great Lakes snow belts. Buffalo NY was reporting thundersnow and 2-3 inch per hour falls in the southern suburbs on Monday evening. It was also snowing at a 2 inch per hour clip in Grand Rapids, Michigan, and later tonight into Tuesday, very heavy snow will develop in parts of Ontario and northeastern New York state. The large cities on the east coast had some rain ahead of this cold air on Monday but will see passing flurries and a cold westerly wind today. Meanwhile, the long clear and cold spell on the west coast began to modify on Monday with increasing high cloud and a slightly milder high of 10 C. -- Peter for IWO
Posted on: Tue, 18 Nov 2014 07:52:24 +0000
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