Numerous states face inclement weather, including heavy rain and potential severe thunderstorms this week, forecasters say.

Max Velocity explains it in a simple way: when two very different air masses push against each other, the atmosphere does not stay calm for long. In his view, the next several days won’t be about one clean storm and then a break, but a whole chain of systems rolling through.

Mild weather expected for the workweek with potential for showers and thunderstorms late in the week. Colder air returns into the weekend.

Heavy snow” is forecast to hit Hertfordshire as Storm Goretti hurtles across the UK in the coming days. The Met Office has issued numerous warnings across the UK including a yellow one for snow covering large parts of the county between 5pm today (January 8) and 12pm Friday.