A slow-moving storm will bring widespread outbreaks of rain with some thunder across the United Kingdom on Thursday. There could even be enough rain to raise flooding fears.
Thunderstorms will have very moist air to tap into. So much moisture, in fact, that any thunderstorm can produce flash flooding.
The heaviest rain during the day Thursday is expected across England and Wales. Heavy rain should hold off until Thursday night in Scotland.
Rainfall totals across England, Wales and Scotland will be 15-25 mm with some spots seeing more than 50 mm. One area that looks as though it will avoid the heavy rain is Ireland. Most of the rain will remain east of the country.
Heavy rain will remain a threat through Thursday night and into part of Friday. Low pressure spewing the threatening weather will move into the North Sea by the end of the day, bringing an end to the wet weather.
Despite the rain, temperatures will be rather warm across the U.K. The London area will have high temperatures near 25 C. High temperatures will reach the lower 20s across central and northern England. Wales will experience highs in the upper 10s. With rain holding off in Scotland, highs Thursday will reach close to or above 20 in many areas outside of the Highlands. Temperatures across Ireland will range from the upper 10s to the lower 20s.
By Dave Samuhel, Meteorologist