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: Bath and North East Somerset, Bristol, Gloucestershire, North Somerset, South Gloucestershire valid from 2315 Tue 21 May to 0500 Thu 23 May

Weather ReportsVisit ►

    Today
 Moon & Sun Forecast
Sunrise
5:05 am
Sunset
9:04 pm
Day Length
15:59 hrs
Waxing Gibbous, Moon at 13 days in cycle
Moonrise
8:25 pm
Moonset
4:04 am
Visibility
97%
There will be 2 mins 36sec more daylight tomorrow
Moon Phase:Waxing Gibbous

 On this day in the West
Record Temperatures On This Date
Record High
25.1°C - 2012
Record Low
-0.2°C - 2007

Today's extremes

High Temp: 12.4°C   at  12:00 AM
Low Temp: 12.1°C  at 1:09 AM
Rain Rate: 0.60 mm/hr @ 12:00 AM
UV High: 0.0  at  12:00 AM
Max Gust: 4.6 mph at 12:31 AM
Min Windchill: 12.1°C  at  1:09 AM

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