Met Office issues yellow thunderstorm warning with up to 30mm of rain in an hour possible Posted on September 5, 2022 By Charlielikes Parts of Britain face a washout with a yellow weather warning for thunderstorms issued across England, Wales and Northern Ireland tonight. news Tags:‘to, ‘with, 30mm, an, hour, in, issues, met, news, of, office, possible”, rain,, thunderstorm, topnews, trending, up’ , warning, yellow