Sunday, 25 January, 2015 Forecasts for Ireland Confidence is growing that there may be some robust winter weather starting around mid-week and intensifying next weekend. TODAY ... Breezy and mild with occasional light rain more frequent in west, some longer dry intervals in east to mid-day, then more extensive light rain developing and this turning heavier by evening for parts of Connacht and Ulster. Highs 10-12 C. Moderate southwest winds at times gusting to 70 km/hr. TONIGHT and MONDAY ... Windy and slightly colder with passing showers, lows 4-6 C and highs 7-9 C. Some of the showers may be sleety on high ground in north. However, also some sunny intervals. Westerly winds gusting to about 80 km/hr in some areas. TUESDAY and early WEDNESDAY will be rather mild with strong westerly winds and periods of rain developing, highs 8-10 C and near 5 C overnight into Wednesday morning. Later WEDNESDAY it will turn colder with showers or periods of rain becoming sleety on high ground, eventually some snow accumulations by late in the day on western and northern hills. Temperatures falling during the day to about 7 C. THURSDAY will then stay cold in west to northwest winds and showers becoming mixed and wintry at times in the north. Highs 6-8 C for most, 3-6 C north. Winds W-NW 50-80 km/hr. FRIDAY it will begin to turn even more wintry in higher parts of the north, and much colder in other areas, in strong northerly winds gusting to 90 km/hr, morning lows -2 to +2 C, and highs only 4-6 C. NEXT WEEKEND and early next week, expect some strong northerly winds at times, passing mixed or wintry showers, snow on hills quite likely, and at lower elevations from time to time, as temperatures struggle to reach even 3 or 4 C. Some sharp frosts will develop and there may be icy road conditions at times as well as lying snow. The main feature of this spell will be strong northerly winds reaching 70-100 km/hr at times in exposed areas. When these winds subside early next week, snow may develop from a chain of weak lows moving south in a broad northerly flow. Details will be hard to assess until much closer to the time but it would not surprise me if some 2-5 cm amounts come into play in the outlook by later this week. For Britain, most of these trends will be similar and when the very cold spell begins, it may be more severe in parts of Scotland. There is some chance that this spell may dig in and be a prolonged wintry period dominating February, but other guidance suggests continued variable conditions with a mixture of cold and milder spells. Meanwhile, the northeast United States is bracing for the impact of a major snowstorm expected to hit Tuesday (Monday in some parts of the mid-Atlantic states). This will bring 5-10 cm amounts near Washington DC, increasing to about 10-20 cm Baltimore and 20-30 cm Philadelphia, then 40-70 cm in New York City, Long Island and much of New England. Meanwhile this disturbance is slowly gathering energy over the Midwest where it is dropping light sleet and 2-4 cm snowfalls today. A rather cold high is sliding southeast ahead of it to set up the dynamics for the eventual coastal storm. So it should be a dry if cloudy day on the east coast today. The west is much warmer, in fact records may fall in many parts of western Canada and the Pacific Northwest states on Sunday and Monday. My local weather on Saturday featured continued rain that ended in the afternoon, and mild highs near 12 C. Expecting perhaps a bit of sun at times next two days, and highs 13-15 C. This will get our rather subtropical vegetation going a bit ahead of schedule. -- Peter for IWO ~~~~~~~~~~~~~~~~~~~~~~~ & ~~~~~~~~~~~~~~~~~~
Posted on: Sun, 25 Jan 2015 07:32:14 +0000
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