No official flood warning is active nearby and the closest river stations are within normal ranges.
Updated 2026-08-24 00:29:51 UTC · Official GOV.UK warnings · Flood preparation & help guide
Howletts Lane is monitored by 1 Environment Agency river level station on the Cannon Brook, in England. Water levels are updated every 15 minutes.
Howletts Lane is monitored by 1 Environment Agency river level station on the Cannon Brook, in England. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.
The Cannon Brook is monitored by 1 station (Howletts Lane, Ruislip). Each station records water levels continuously, with data synced to FloodRadar every 5 minutes.
There are 8 Environment Agency flood warning areas within 10km of Howletts Lane. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: The River Pinn at Ruislip; The River Pinn and Woodridings Stream at Pinner, Eastcote, Ruislip, Ickenham, Uxbridge and Yiewsley; The River Pinn at Eastcote Village; The River Pinn at Ickenham.
There are 2 storm overflows within 5km of Howletts Lane. None are currently discharging. Enable "Sewage" on the map above to see their locations.
If flooding is forecast in Howletts Lane, call Floodline on 0345 988 1188 for the latest information. Move valuables upstairs, turn off gas and electricity if safe to do so, and avoid walking or driving through flood water. Sign up for flood warnings on any station page above to receive email alerts when water levels rise. For emergency numbers, a preparation checklist and insurance guidance, see our flood help & preparation guide.
Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of the town centre — most recent first. See them on the map →
Current verdict: Normal. No official flood warning is active nearby and the closest river stations are within normal ranges.
Howletts Lane has river level monitoring on Cannon Brook — 1 monitoring station in total.
Use the GOV.UK Check for Flooding service (check-for-flooding.service.gov.uk) or call Floodline on 0345 988 1188 (24 hours). You can also set up free FloodRadar email or browser alerts from any station page above.
Follow official advice: move valuables and vehicles to safety, never walk or drive through flood water, turn off gas and electricity if safe, and check on vulnerable neighbours. See our flood preparation guide at floodradar.co.uk/flood-help.
Yes — the Environment Agency's Recorded Flood Outlines dataset shows 15 recorded flood extents around the town centre since 1946, most recently in 2024. Absence of a record does not mean a place has never flooded. See the flood history link below.
