12 May - National weather forecast presented by Aidan McGivern.
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00:00Hi there. Following a very long dry spell and much needed rainfall in places, we saw
00:06some hit and miss rain as we ended the weekend, and that will continue to be the case on Monday.
00:11Large rainfall amounts in some places, courtesy of showers and thunderstorms, other areas
00:16escaping entirely dry, and it's because this area of low pressure moving up from the south,
00:21and that's going to bring a zone of instability, especially through parts of Wales, the Midlands,
00:26into the southeast of England, and that's where the greatest risk of some very lively showers
00:31and thunderstorms will occur. 40-50mm of rain in a couple of hours, hail, gusty winds, lightning,
00:38all of that is a risk because that amount of rain, of course, on dry ground could cause
00:45some serious impacts, but not a guarantee because these showers and thunderstorms will be hit
00:50and miss even in the greatest risk area, which, as I say, is Wales, the Midlands, into the
00:55southeast of England. Scattered showers and thunderstorms could also occur, particularly
00:59towards north Devon, Somerset and Cornwall, and one or two are possible towards northwest
01:05England, southwest Scotland, perhaps Northern Ireland, but these will be even more isolated
01:11because of drier air further north, and much of Scotland is simply sunny and dry, and eastern
01:18England escaping dry as well because of a breeze coming from the North Sea, keeping things a little
01:25cooler. Inland, though, temperatures reaching the mid-20s where the sunshine continues, and it's
01:32going to be feeling humid in many places with an increase in cloud cover compared with much of
01:38spring so far. Now, showers and thunderstorms will continue for a time until the sun goes down,
01:43although overnight always the chance of one or two showers here and then again in the same sort
01:48of places. Otherwise, it's clear spells for many through the hours of darkness. Some low cloud
01:55coming into the northeast of the UK, temperatures dipping to the high single figures, low double
02:00figures. Now, we start off Tuesday with that low cloud hugging the northeast coast of Scotland,
02:05northeast England as well. It tends to retreat back to the beaches, by and large, by mid-morning.
02:11Elsewhere, sunny skies, but the line of instability remains. It's sinking south somewhat, so it's
02:19south Wales into central southern England and towards the southeast of England, where we're
02:24likely to see a few showers and thunderstorms developing by the afternoon. A notch down compared
02:31with Monday's activity, but still could be fierce where they occur in places. Otherwise, away from those
02:36areas, sunny skies return fairly widely. Mid-20s still possible, most especially towards northwestern
02:43parts of the UK, a little cooler and less humid further south and southeast. Going into Tuesday
02:50evening, the showers and storms tend to fade away and once again it's a clear night for many. Again,
02:56some low cloud hugging the northeast coast and coming inland across Scotland as well as northeast
03:02England. And as we go into Tuesday night and Wednesday, high pressure reasserts itself. Always
03:08the chance of a few showers continuing on Wednesday in the far southwest, but as that high pressure
03:14builds, we're going to see widely sunny skies and dry conditions return. So, not doing farmers and growers
03:21any favours with the hit and miss very heavy showers potentially as we start the week and then turning
03:28much drier again as we end the week. So, no sign of useful rain in sight for the time being.