Extreme weather conditions may occur at any time of the year and can range from rain, thunderstorms, wind, snow, lightning, ice, fog and heatwaves. It is important to be aware during these periods of extreme weather. Find out where to get information and advice on severe weather.
The SWEP is activated when the Met Office predicts one night of temperatures below 0 degrees anywhere in London.
Find out about homelessness prevention and advice including what to do if you're concerned about someone who is rough sleeping.
What we do in icy weather
Find out about how we help keep roads safe in winter on our road gritting page.
Winter weather advice
Met Office advice on getting ready for winter including looking after your health, protecting your home and precautions to take when travelling during the winter.