Thunderstorm Risk Map - Lighting potential
UK Thunderstorm Risk Map

UK Thunderstorm Risk Map - lighting potential

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Help & Information

Some people love thunderstorms and some hate them... it's pretty much a way of life.

However, during summer months the risk of large and damaging thunderstorms and tornadoes increases. These charts go out to the next 16 days showing you the risk of thunderstorms and tornadoes across the country.

These images are updated four times a day and begin updating at 6.30am, 12.30pm, 6.30pm and 12.30am (BST) and take approx 110 mins to complete.

Thunderstorm risk is based on the latest high resolution GFS data and uses the Thompson Index along with the K Index in order to ascertain risk.

The tornado risk uses the Storm Relative Helicity as well as the Shear Index for 3 levels in the atmosphere to ascertain risk.

Well, you did ask....

 Weather Warnings

  • Yellow warning of rain affecting South West England: Gloucestershire, Swindon, Wiltshire valid from 1100 Sun 19 Sep to 2259 Sun 19 Sep

Weather ReportsVisit ►

Evening:Forecast Icon


Overnight:Forecast Icon


Morning: Forecast Icon


Afternoon: Forecast Icon


Evening: Forecast Icon


 Moon & Sun Forecast
6:46 am
7:17 pm
Day Length
12:31 hrs
Waxing Gibbous, Moon at 11 days in cycle
6:36 pm
1:37 am
There will be 3 min 55sec less daylight tomorrow
Moon Phase:Waxing Gibbous

 On this day in the West
Record Temperatures On This Date
Record High
23.4°C - 2014
Record Low
5.2°C - 2010

Today's extremes

High Temp: 22.2°C   at  3:15 PM
Low Temp: 10.0°C  at 2:39 AM
Rain Rate: 0.00 mm/hr @ 00:00 AM
UV High: 8.0  at  1:48 PM
Max Gust: 18.4 mph at 11:44 AM
Min Windchill: 10.0°C  at  2:39 AM

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