Thunderstorms to Batter UK this Weekend, Pose Life-Threatening Flood Risk

Strategic Insights -

Thunderstorms expected to sweep across the UK this weekend have the potential to cause life-threatening flood risks, particularly in the amber warning area covering parts of the East and South East of England, including London. Heavy downpours could lead to surface water flooding, with some areas experiencing as much as 70-100mm of rain in just a few hours. The Met Office has issued an amber warning for these areas, cautioning that homes and businesses may flood and that communities could be cut off due to road flooding.

Key Takeaways:

  • The Met Office has issued an amber weather warning for the East and South East of England, including London, due to the risk of life-threatening flood risks from thunderstorms and heavy rain.
  • Between 20 and 40mm of rain could fall in one hour in the amber warning zone, with up to 70-100mm in just a few hours where heavy downpours persist.
  • The storms could lead to "fast flowing or deep floodwater, causing a danger to life" in the amber warning area, as well as frequent lightning and localized flooding.
  • Chief Met Office meteorologist, Andy Page, warned that intense rainfall could lead to surface water flooding and frequent lightning, and that warnings may be changed or added as the situation evolves.
  • A range of severe weather warnings have been issued, including an Amber warning covering South East England and London.
  • Homes and businesses may flood, and communities may be cut off due to road flooding, with buildings at risk of damage from floodwater, lightning strikes, hail, or strong winds.

Statistics:

  • 20-40mm of rain could fall in one hour in the amber warning zone.
  • 70-100mm of rain could fall in just a few hours in areas with heavy downpours.
  • The Met Office has issued a range of severe weather warnings, including an Amber warning covering South East England and London.
  • 20-30mm of rain could fall in less than an hour in some areas, with 60-90 mm in two to three hours possible in a few places.
  • Thunderstorms could cause "disruption in places" and surface water flooding, with frequent lightning and localised flooding also possible.

Sources:

  • The Met Office
  • "Areas of heavy rain with embedded thunderstorms will move north-westwards across a large swathe of central and eastern England through Friday into Saturday" (The Met Office)
  • "Rain will likely be torrential in places, bringing 20-30mm in less than an hour, with 60-90 mm in two to three hours possible in a few places" (The Met Office)
  • "A range of severe weather warnings have been issued, including an Amber warning covering South East England and London" (The Met Office)
  • "This weekend is expected to be busy on the roads as more schools in England and Wales break up for the summer holidays" (The Met Office)