Snow is expected to continue falling in Somerset for much of the day, with drivers urged to cancel all non-essential journeys.
The Met Office's severe weather warning amber alert for the county is in place until 9pm tonight with further flurries forecast throughout the day.
A less severe yellow warning has been issued for the weekend, from midnight tonight until midday on Sunday as further snow showers are expected.
The Met Office said as much as half a foot of snow could fall in less than six hours this morning in many parts of its amber alert area.
Tonight, further flurries are forecast - particularly over higher ground such as the Mendips, the Blackdown Hills and Exmoor.
With temperatures dropping below freezing tonight, there is also an increased risk of icy conditions on the roads.
The Met Office is forecasting a patchy mix of rain, sleet and snow for Saturday - with snow more likely further east in Somerset. A further 5cm could fall, and up to 10cm on higher ground.
Drivers are being urged not to travel unless their journey is vital. If you do need to drive today, here are some top tips for driving safely in snow and icy conditions.
Click here to see the latest weather forecast in Somerset.
Click here to visit the Met Office website.
Our Twitter followers have been kindly sending us snow pictures from across Somerset this morning. Scroll through the photos above to see them, and remember to follow @thisissomnews.