Yogi, it's the south and east of England mainly expected to get the snow. Each day the Met Office has been increasing the risk for the weekend. Hopefully it won't amount to much but it's clear that the extent and quantity is very uncertain.
The winter hasn't been anything like the one of 1962/63 (briefly mentioned in the latest series of Call the Midwife). In this part of the country one might expect one lot of snow in a winter but to get four lots is unusual.