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Moderate Rainfall Warning

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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the DailyCity weather desk. Data from national met services via Open-Meteo.

The Met Office has issued a moderate rainfall warning for much of England and Wales, with the South West, London and Home Counties expected to see the heaviest downpours between midday and late evening on Tuesday, bringing a risk of localised flooding and travel disruption.

Where will the moderate rainfall warning hit hardest?

The warning, covering a broad area from Devon and Cornwall up through the Midlands and across to East Anglia, is most acute for coastal communities and low-lying urban areas in the South East. Rain rates could reach 15-20 mm per hour, with totals of 30-40 mm in some spots, enough to cause surface water flooding on roads and railways. Those in Greater London, especially near the Thames corridor, should plan for slower commutes and potential bus or rail cancellations as drains struggle to cope.

Is this connected to the storm to hit Britain this weekend?

This moderate rainfall warning is a separate system, a slow-moving low pressure zone sweeping in from the Atlantic, but it precedes a more potent storm expected later in the week. Forecasters are closely watching a deepening area of low pressure that could bring a storm to hit Britain this weekend, with possible gales and further heavy rain across northern and western areas.

Warning TypeModerate rainfall (Yellow)
Valid from12:00 Tuesday to 23:59 Tuesday
Areas affectedSouth West, London, South East, Midlands
Peak intensity15-20 mm per hour

How does a moderate rainfall warning compare to amber weather warning meaning?

A moderate rainfall warning (yellow) means “be aware” – travel delays and a small chance of flooding are likely. It is a level below an amber warning, where you should “be prepared” for more serious disruption and greater danger to life or property. The amber weather warning meaning involves higher confidence of widespread impacts. You can view the 10 day weather forecast UK for your area, and check for any UK weather hub updates.

What does the moderate rainfall warning map show?

The warning map, published by the Met Office, highlights a yellow zone stretching from Bristol across to London and up to Norwich. Darker patches within the map indicate where downpours are likely to be heaviest and most persistent, typically aligning with the M4 and M25 corridors.

Will this moderate rainfall warning London cause flooding?

Localised flash flooding is possible in basement flats, underpasses and poorly drained streets, but widespread river flooding is not expected. TfL advises checking Gov.uk for road closures and allowing extra time for journeys.

Does the warning affect the met office snow warning regions?

No – this is purely a rain event. The cold weather payment checker and any Storm Floris Edinburgh alerts are separate. However, a met office snow warning and a weather warning Scotland may be issued later in the week as colder air moves in behind the rain.