This satellite image from the Met Office shows the storm hitting the UK.
There will be winds reaching 100 mph.
TORRO, which looks at extreme weather, is warning that conditions are ripe for a possible tornado.
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Councils and popular tourist destinations in the South and South East are pleading with people to stay at home.
Among the first to receive the tests will be critical care nurses, intensive care staff, ambulance workers and GPs.
The supercentenarian from Alton, Hampshire, who lived through the Spanish flu, is under Covid-19 lockdown.