The UK Government have recently launched the 'Be Ready' website: https://beready.campaign.gov.uk/

This website contains guidance about being ready for emergencies and has a function that enables users to check on hazards in their local area.  

Locally, Lincolnshire Police and the Lincolnshire Police and Crime Commissioner have the 'Lincolnshire Alert' website: https://www.lincolnshirealert.co.uk/

This is a free messaging service where users can sign up to be informed of crime issues in their local area and receive appropriate crime prevention advice.