Heat Set To Return?Added : Sunday at 15:40 Although we are still reflecting on Friday's extraordinary temperatures, our job means that we are always looking ahead and so we have spotted some more potentially hot weather on the horizon....
We are in the peak summer season period of the end of July and early August when the highest temperatures of the year are likely to be recorded and this year looks set to stick to tradition. Last year it was July 25th that took the title of hottest day of the year (and hottest day ever for that matter), and now this year July 31st holds the title of 2020's hottest day.
Numerical model output is now picking up on more heat drifting north later next week, so let's take a look at what's happening. Here is the forecast sea level pressure chart for Monday:
You can see how a cooler air mass has fed across Britain and Ireland so temperatures have dropped back to nearer normal values, and even a touch below for some northern regions. The westerly air stream is bringing a mixture of sunny spells and scattered showers with it, the showers mainly becoming confined to the northwest as a ridge of high pressure tries to build in from the southwest.
By Tuesday and Wednesday it is all change again as somewhat warmer air returns along with an Atlantic low pressure system:
This feature is set to bring a pretty wet spell of weather for north-western regions of Britain and Ireland whilst south-eastern parts of England see little, if any, rainfall. This is picked up well by the rainfall accumulation chart up until the end of Wednesday with parts of the northwest potentially seeing a couple of inches of rainfall by this point:
Attention then turns to rising pressure to the east of the country as the jet stream moves north:
By Thursday and Friday temperatures towards the south look set to be climbing back up into the high twenties or low thirties as winds turn more to the south or southeast, with some of this warmer air potentially drifting further north and west too:
This is a period that we will monitor closely in the coming days and firm up on the finer details, but we do have high confidence that by the end of the week it will be turning very warm or hot, especially towards the south, but with this could come an increasing risk of thunderstorms. The far north and west may well miss out again too, but confidence is lower on this at this stage.
METEOROLOGIST: BARBER |