Lancashire weather: The Met Office issues a 12-hour rain warning as the heatwave comes to an abrupt end

The Met Office has issued a 12-hour rain warning for parts of Lancashire as the September heatwave comes to an abrupt end.

Temperatures may have risen to near 30C in recent days, but are falling fast as autumn rain hits the county today (September 12). A yellow weather warning for rain has been in place from 1am to 1pm for wide areas of the North West, including Leyland, Chorley, West Lancashire, Southport, Greater Manchester and Liverpool.

Forecasters warn that 20 to 30mm of rain is likely to fall “very widely over about six hours” while some places could see “up to 40 to 50mm”. This can lead to flooding and travel disruption resulting in longer journey times.

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The Met Office warning said: “Rainfall is expected to become heavier and more persistent during the early hours of Tuesday, extending eastwards across north-east Wales, the north Midlands, parts of northern England and Lincolnshire. Rainfall will range from 20 to 30 mm.” “. It will likely be widespread in about six hours, perhaps reaching 40 to 50 mm in a few places.

“This will likely cause some flooding and disruption in some locations. The rain will likely become heavier Tuesday afternoon.”

what are you expecting

• Drizzle and flooding on roads are likely to lengthen journey times
• Bus and train services are likely to be affected, with journey times taking longer
• Flooding is possible for a few homes and businesses

Conditions are also expected to cool from Tuesday onwards, bringing an abrupt end to September’s moderate heatwave. Maximum temperatures will only reach 15°C on Tuesday, but will improve slightly to 18°C ​​on Wednesday before falling again to 16°C at the end of the week.

Latest Met Office 5-day forecast for the area:

Tuesday:

A cloudy day in most areas, with heavy rain falling towards the east during the morning. Skies may be brightening in Cumbria and perhaps generally later in the day. A little breeze and feeling refreshing. Maximum temperature 17°C.

Tonight:

Becoming dry this evening with increasingly long clear periods overnight. The weather is turning very cold with patchy fog and a touch of grass frost in any exposed rural areas. Minimum temperature 7 degrees Celsius.

Wednesday:

Any fog soon clears, then a dry day with sunny spells. Clouds are likely during the afternoon. The weather will turn more windy during the evening and night, with some rain falling. Maximum temperature 18°C.

Forecast from Thursday to Saturday:

The rain tapers off on Thursday leaving brighter skies for a while, but more rain returns on Friday with a very wet day possible on Saturday. Breezy at times and feels cool.