Snow-hit Britain is now facing a storm deluge driven by jet stream winds that will send temperatures rocketing to unusual highs. Sub-zero temperatures, snow and ice will be blown away this weekend by gales and torrential rain as the weather makes a dramatic U-turn. Southerly gusts will rocket temperatures into double figures next week – well above average for mid-winter, according to the Met Office. Meanwhile, government forecasters have swapped snow and ice warnings for a near-nationwide raft of wind and rain alerts. Met Office meteorologist Alex Burkill said: “The jet stream is going to driv…
