The Environment Agency has now issued a number of severe flood warnings which covers approximately 18,000 properties in Boston.
Residents in Tower Street and people living along Haven Bank in Boston have reportedly been told to evacuate.
Residents at the Willoughby Grange Care Home in Boston are preparing to move up to the third floor of the building should they be affected by flooding.
The home which is situated next to the Maud Foster Drain in Boston is in an area subject to a Severe Flood Warning.
Yvonne Guest, Manager at the home, said: "It's quite scary. We have sent our maintenance man out to get sand bags. We have out Christmas fete tomorrow and we hope it won't be cancelled."
Jacksons Building Centre at Tattershall Road, Boston, sold out of their supply of 200 sandbags this afternoon.
Call the Floodline for updates on 0845 988 1188.