Hail, hazardous wind gusts and possible tornadoes likely to be followed by rain, with snow forecast in New England and Canada
There will be a dramatic start to April in western parts of the United States, with an influx of warm moist air from the Gulf of Mexico fuelling severe thunderstorms through the first part of this week.
On Monday, storms are forecast to stretch from Texas towards the Great Lakes, with Oklahoma, Missouri and Illinois expected to be most severely affected. The system will then move eastwards on Tuesday, with Kentucky, Tennessee and Ohio expected to receive the greatest impact.
