Friday, 18 July, 2014 Forecasts for Ireland ALERT continues for severe thunderstorm activity this morning, spreading north through Dublin and Kildare into Meath, and then west mainly into Offaly, Westmeath, Longford, and parts of eastern Connacht. The trend further west will be gradual reduction in the intensity below severe limits. However, the intensity in Leinster will tend to oscillate, with a second peak in activity later in the day possibly including areas further south again in east Munster and south Leinster, as a weak cold front activates. TODAY ... Leinster and east Connacht will see powerful thunderstorms at times with risk of hail, intense lightning and local downpours of 20-40 mm causing flash flooding. Some of this may spread into Ulster in reduced form by mid-day. Conditions further west in Connacht will be more showery than stormy but an isolated thunderstorm or two might develop there also. Munster will start out with some inland sunshine, very muggy conditions, and sea fog drifting inland from the south coast. Showers and thunderstorms will develop there and spread into parts of south Leinster after some late morning clear intervals. Some of these storms will become severe with hail and local flooding. The southern half of the country will have highs 22-24 C in sunny intervals between storms, while the northern half will tend to stall near 20 C due to more constant cloud cover. It will feel like 28 C at times in the south and 24 C in the north. Moderate southerly winds will develop with some gusts to about 50 km/hr, while east winds will continue north of the storm front. TONIGHT ... The last of the showers or storms should come to an end around midnight in north central counties, then widespread ground fog and mist is likely under otherwise clearing skies. Very muggy with lows 14-18 C. SATURDAY ... Partly cloudy to overcast, widespread showers in east, some becoming thundery, isolated severe storms in north Leinster. Less widespread showers in west, south but some risk of isolated thunderstorms. Light winds and muggy with highs 23-25 C. SUNDAY ... Risk of early morning thunderstorms in east Ulster, north Leinster, and these could continue in some coastal areas for part of the day. In general, clearing in most other regions, very warm, morning lows near 16 C and afternoon highs near 26 C inland, 22-24 C coastal. About a 20-30 per cent risk of a brief or isolated thunderstorm late in the day. MONDAY ... Increasing cloud, showers and thunderstorms, highs near 25 C. OUTLOOK ... Continued very warm and unsettled at times, with highs generally in the mid to high 20s. Some guidance is showing a peak in temperatures about a week to ten days from now near 30 C. The outlook for Britain remains as per yesterdays discussion, todays scattered storms should continue to drift north, hot sunshine to follow, very humid, highs near 30 C. Widespread and possibly severe storms in central and southern England on Saturday, and continued stormy conditions here and there each day to mid-week although not all areas will see storms. Highs generally near 27 C in south and 23 C in north. Will update North America tomorrow, my local weather cooled off a bit thankfully on Thursday and a strong sea breeze was the main reason, highs only reached 24 C. -- Peter for IWO
Posted on: Fri, 18 Jul 2014 06:06:06 +0000
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