All Regions Europe Flooding threat increases amid Storm Herminia Met Office weather warnings Transport across parts of the country could be facing disruption today and tomorro My London – WeatherRead More About Author OTW Observer See author's posts Post navigation Previous Met Office issues 9-hour London weather warning as 60mph winds expected overnightNext Flood alert for London amid Storm Herminia Met Office weather warnings Related Stories Weather forecast during London Tube strikes – can I cycle to work? All Regions Europe Weather forecast during London Tube strikes – can I cycle to work? April 20, 2026 Exact date 20C heat will hit London in new forecast All Regions Europe Exact date 20C heat will hit London in new forecast April 20, 2026 Lyrid meteor shower 2026 best time and chances to see in London All Regions Europe Lyrid meteor shower 2026 best time and chances to see in London April 17, 2026