Homes across Lincolnshire added to warning system following Winter floods

People in new areas of Grantham, Lincoln, Boston and Market Rasen will now receive the alerts if signed up via the Government website

The River Witham broke it's banks in January causing many homes in Grantham to flood for the first time
Published 4th Aug 2025

Over 800 homes in Lincolnshire have been added to the Environment Agency's warning system following January's devasting floods.

People in new areas of Grantham, Lincoln, Boston and Market Rasen will now receive the alerts if signed up via the Government website.

"We've added properties and removed properties if they're not at risk. So it's improved modelling," said Ben Thornely, Area Flood and Coastal Risk Manager at the Environment Agency.

"In Boston, we've added the ability of another 140 properties to receive the flood warning.

"In Grantham, we've removed about 90 properties, but we've added 850 properties.

"In Market Raisin, Middle Raisin we've added an additional 300 properties to the flood warning area.

River Witham, Lincoln

"Then probably the most significant is the Lower Witham. There are about 11,500 properties that receive a warning in that area at the moment.

"We've taken the existing five warnings and we've split that up into 21 different warnings, so we're giving much more bespoke warnings to people."

There are three different levels of notifications: flood alerts, which means prepare for flooding; flood warnings, which means flooding expected and severe flood warnings, which means an immediate risk to life.

"So it's really important that people check the flood risk," said Ben,

"In their locality they can do that by searching visiting the Government website or they can ring our flood line number and sign up to our free flood warning service on 03459881188."