There is a 90% probability of severe cold weather and icy conditions between 6pm on Wednesday 7 December and 9am on Monday 12 December in parts of England.
The warning states:
This weather could increase the health risks to vulnerable patients and disrupt the delivery of services. Please refer to the national Cold Weather Plan and your Trust’s emergency plan for appropriate preventive action.
Rather cold conditions are expected to turn colder across much of the UK later Wednesday and through Thursday as air from the Arctic spreads south across the country.
Very cold nights are expected, with widespread frosts and potentially severe frosts. Daytime temperatures persisting near or just above freezing, with overnight temperatures continuing to trend downwards.
Wintry showers are also likely to affect some coasts, perhaps pushing into some inland areas at times, bringing a risk of icy patches.
An update will be issued when the alert level changes in any region. Alerts are issued once a day by 0900 if required and are not subject to amendment in between standard issue times. Note that the details of the forecast weather are valid at the time of issue but may change over the period that an alert remains in force. These details will not be updated here unless the alert level also changes.