Pirate FM News

WATCH: The flood risk as Cornwall braces for thunderstorms

Lightning over Truro

Published by the Pirate FM News Team at 11:45am 11th June 2018. (Updated at 12:13pm 11th June 2018)

The Met Office has issued a thunderstorm warning for Cornwall with the risk of flooding.

The yellow weather alert for heavy rain and thunder and lightning will be in force across Monday afternoon and evening.

Forecasters say as much as 20mm of rain in just one hour, or up to 40mm in three hours.

The alert is expected to remain in force between 1pm and 7pm on Monday.


The Met Office said: "Showers are expected to form and then move eastwards across parts of northern England on Monday afternoon.

"Accumulations of 20 mm in an hour and 30-40 mm in 2 to 3 hours are possible for some places but most will see much smaller amounts than this.

"The showers will then gradually die out this evening."

The Duchy is also being warned of hail and lightning strikes.

They added: "Thunderstorms may form over Devon and Cornwall on Monday afternoon.

"There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds.

"Spray and sudden flooding could lead to difficult driving conditions and some road closures.

"Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services.

"There is a slight chance that power cuts could occur and other services to some homes and businesses could be lost."

Check the latest weather warnings for Cornwall or watch what that yellow alert means...



How to drive in heavy rain:

  • Firstly, slow down! Reduce your speed and leave more space between you and the vehicle in front as stopping distances in rain are increased 
  • Use dipped headlights so that other drivers can see you more easily
  • Don’t use rear fog lights. They can mask your brake lights and dazzle drivers behind you
  • Look out for large or fast-moving vehicles creating spray which reduces visibility
  • Also remember to keep your air conditioning on, as this will stop your windows from misting up - furthermore, you can read our full advice page on how to demist your windscreen in double-quick time
  • Listen out for local news bulletins to keep up-to-date with road closures, flooding and forecasts
  • If you break down in torrential rain keep the bonnet closed while waiting for help to arrive, to avoid the electrical system getting soaked
  • Driving too fast through standing water could lead to tyres losing contact with the road. If your steering suddenly feels light you could be aquaplaning. To regain grip, ease off the accelerator, do not brake and allow your speed to reduce until you gain full control of the steering again
  • Driving fast through deep water can cause serious and expensive damage
  • Be considerate to other road users and try not to spray pedestrians and cyclists as you drive through water

Source: RAC

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