On 08 March 2026, the national flood service reduced the number of active warnings across England, though experts warn that groundwater flooding remains a likely risk for residents in Rickmansworth, Hertfordshire. While the immediate threat from overflowing rivers is beginning to fade, the ground in the local area is still heavily soaked from recent rain.
The Environment Agency updated its daily figures on Sunday morning, reporting 24 flood warnings and 50 alerts across England. This is a significant decrease from the higher levels seen earlier in the week, signalling that the worst of the surface water flooding may be over for many parts of the country.
Despite this improvement, a five-day outlook from the Met Office suggests that water levels beneath the ground will stay high in southern England. This can cause water to seep into basements and soak gardens even if nearby rivers stay within their banks, which could lead to travel problems and damage to property through the start of the week.
Rickmansworth is particularly prone to this issue because it sits in an area with chalk layers that trap water underground. According to McCloy Consulting, the way local canals and rivers interact with these underground water stores can make the risk of flooding worse in low-lying spots.
Local authorities at Three Rivers District Council are continuing to monitor the situation to help manage local risks. Residents are being advised to keep checking local water levels and stay prepared for potential flooding in cellars or outdoor spaces over the coming days.
