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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Public Report weather desk. Data from national met services via Open-Meteo.
The Met Office issues a moderate rainfall warning (typically a yellow alert) when 20–40 mm is expected within three hours or 40–80 mm within 24 hours, enough to cause localised flooding and travel disruption across parts of the UK today.
What does a moderate rainfall warning mean?
A moderate rainfall warning indicates a reasonable likelihood of flooding to homes and businesses, spray on roads, and slower journey times. It is the lowest level of Met Office alert but still requires attention, especially for drivers and those in low-lying areas. Unlike an amber warning, which signals more widespread impacts, a moderate warning covers localised events that may still catch people off guard if they ignore the forecast.
Which areas are affected, and how long will it last?
The warning covers parts of southern England, including London, and extends into Wales and southwest Scotland. The rain is expected to persist for six to twelve hours before easing overnight. Check the 10‑day forecast for your location to see when conditions improve. A weather warning Scotland may also be in place for northern regions, though this particular alert focuses on the south.
What is the difference between a yellow and an amber weather warning?
A yellow (moderate) warning means some disruption is likely but not widespread. An amber warning indicates more severe impacts, such as significant flooding or travel chaos, and usually covers a larger area.
Should I cancel travel plans because of a moderate rainfall warning?
Unless you are in an area with known flooding risks, normal journeys can continue with extra caution. Allow more time, avoid driving through standing water, and monitor local road closures.
Where can I see the moderate rainfall warning map?
The Met Office publishes an interactive map on its website. You can also view regional updates on the UK weather hub for the latest warning areas and radar imagery.