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Warnings

Friday 28 August Published at 10:38

UK Warnings

Weather Warning

Issued by the Met Office

YELLOW EARLY WARNING OF RAIN for southeast England

Updated 28 August at 10:22

Valid from 00:15 on 30 August until 23:50 on 30 August

Heavy showers and possibly some more prolonged rain is expected to affect southeastern parts of England at times during Sunday. Rain could be heavy, with the risk of some torrential downpours whilst lightning may well be an additional hazard at times.

Very localised impacts from standing water or flooding from fast responding water courses may affect travel and some outdoor events and activities.

This is a very complex development and the warning area, as well as warning period, may well be updated as confidence in developments increase.

Flood Warning

Issued by the Environment Agency or by SEPA in Scotland and Natural Resources Wales in Wales

Friday 28 August

There are no flood warnings in force anywhere in the United Kingdom.

About the Met Office Weather Warnings

BBC Weather carries two types of weather warnings issued by the Met Office: Warnings and Early Warnings.

Warnings will be issued when severe weather is expected within the next 24 hours.

Early Warnings will be issued more than 24 hours ahead of severe weather.

There are three categories of event Red, Amber and Yellow - the most severe is Red.

A Warning and an Early Warning of the same colour have the same severity but are forecast to arrive at different times. Thus, the difference between a Red Warning and a Red Early Warning is the lead time of the event.

When a warning is in force, full information can be found at Met Office Weather Warnings

About Flood Warnings

The flood warnings are issued by the Environment Agency, the Scottish Environment Protection Agency and Natural Resources Wales, and sent to the BBC Weather Centre. We then issue a compendium of warnings based on the latest information available. When severe flood warnings are issued they will also be highlighted on TV broadcasts.

Find out more about Flood Warnings

There are a number of ways you find out whether your area is at risk from flooding. The Environment Agency, the Scottish Environment Protection Agency and Natural Resources Wales update their warnings 24 hours a day via the Floodline number.

Floodline - 0345 988 1188

Monthly Outlook

Monday 24 August Published at 10:00

Monthly Outlook

Summary
Will average August turn into sunny September?

It's probably fair to say that we've had a typically British mix of weather this summer, with most areas enjoying occasional spells of warm sunshine among the showers, although the balance did tip rather heavily towards the damp end of the scale across Scotland. There are signs of a change towards a more settled spell at the end of August - just as the last few schools open their doors for the new term.

Monday 24 August—Sunday 30 August
Keep the brolly handy this week

The weather is dominated by the Atlantic influence this week, with areas of low pressure bringing spells of rain from the west. Some of the rain in the south could be particularly heavy, especially earlier in the week. There will be some sunshine at times too, but a brisk west to southwesterly breeze is likely to make it feel a little on the cool side.

Monday 31 August—Sunday 6 September
Last Bank Holiday before Christmas

You might think a Bank Holiday Monday would guarantee rain, but in fact it looks like the last day of August will mark the start of a trend towards some more settled weather for the start of the first month of autumn. Still rather breezy with a few showers at first, but as high pressure builds in from the west the weather should become drier and quieter. It will feel pleasant enough in sunshine by day, but calm, clear nights will allow an autumnal chill to develop and perhaps some seasonal mists.

Monday 7 September—Sunday 20 September
Early autumn or late summer?

It may sound surprising, but the character of our weather during the middle of September is likely to be decided by current weather conditions over west Africa. Groups of big thunderstorms, known as easterly waves, are moving out across the Atlantic from the African coast. These have the potential to develop into hurricanes, and if that happens the knock-on effect of a big injection of energy into the atmosphere is to reduce the predictability of weather across northwest Europe. In other words, there's no clear signal at the moment for the type of weather we can expect across the UK during the second part of September, The best estimate suggests that cool breezes and occasional rain are most likely in the northwest, with warmer and drier weather more common in the southeast.

Next week

Onwards through the autumn equinox and the nights become longer than the days, but when might those nights bring the first sharp frosts of the season?

Monthly forecasting
The weather beyond about a week ahead stretches even the most experienced weather forecaster. Complex numerical weather forecast models from the Met Office and the European Centre for Medium-Range Weather Forecasts (ECMWF) are run many times for the month (and season) ahead to build up a picture of the likelihood of different weather types affecting the UK.

Next update at 10:00, Monday 31 August

Summary

Saturday 29 August Published at 01:41

Summary

Bright for all with sunny spells and some showery rain.
Today

Many places dry with long sunny spells. The threat of showers continues in the north, heaviest and most frequent in the far northwest. Cloudier across parts of the south, with showery rain for some southern counties later.

Tonight

Mild in the southeast with showery rain affecting some parts, possibly heavy with thunder. Further north, showers inland will ease, leaving clear spells and a chilly night.

Sunday

Still breezy in the far north with scattered showers affecting Northern Ireland and Scotland. Cloudy at times further south with some showery rain, occasionally heavy later. Humid in the southeast.

Outlook for Monday to Wednesday

Rain across southern parts gradually clearing away east by Tuesday, with drier, brighter conditions following. Showers in the north slowly ease. Some warm sunshine, but chilly nights developing for all.

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UK Forecast Last updated 23:22, Friday 28 Aug