Ongar, England, United Kingdom Severe Weather Alertstar_ratehome

An area of heavy showers and thunderstorms will move across this region during the afternoon and early evening, affecting areas in the west first and moving progressively east towards evening with drier weather following. Some places could see 15-25 mm of rain in an hour, and 30 mm in two to three hours, with hail and lightning additional hazards. 

For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings