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No official flood warning is active nearby and the closest river stations are within normal ranges.
Updated 2026-10-10 12:31:44 UTC · Official GOV.UK warnings · Flood preparation & help guide
Millbrook is a suburb and former civil parish of Southampton, in the ceremonial county of Hampshire, England. As the area developed, several settlements grew within the parish, some of them becoming parishes in their own right, thus reducing the extent of the Millbrook parish. As well as the Millbrook of today, the original Millbrook parish included Freemantle, Regents Park, and Redbridge. Some of these areas are still referred to as being part of Millbrook. The brook that Millbrook was named after is now known as Tanner's Brook.
Towns and villages near Millbrook with a page of their own: the homes in a flood risk area there, the nearest river gauges, and recorded floods.
Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.
The nearest watercourse on the river map is Tanner's Brook, about 60 m from the middle of Millbrook's gauges. It flows into Tanner's Creek about 900 m downstream.
A gauge downstream shows water that has already passed this point; one upstream sees it first. Distances along the river are from the point on Tanner's Brook nearest the middle of Millbrook's gauges. From Ordnance Survey’s river map (OS Open Rivers), which leaves out small streams, ditches and culverts, so a nearer one may exist. This describes where water goes on the map; it says nothing about flooding at any address. Contains OS data © Crown copyright and database rights 2026.
Millbrook is monitored by 1 Environment Agency river level station on the Tanners Brook, in Hampshire. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.
The Tanners Brook is monitored by 1 station (Millbrook). 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 Millbrook. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: Lord's Hill, Lordswood, Coxford, Shirley Park, Shirley Warren and Millbrook on the Tanners Brook; Tanners Brook from Lords Hill to the Test estuary including Holly Brook; Tidal areas of the Itchen estuary, including Northam, Millbank, and Crosshouse; Coast at Ocean Village, Southampton.
There are 18 storm overflows within 5km of Millbrook. None of the 15 with a reporting monitor are currently discharging (3 have no live status right now). Enable "Sewage" on the map above to see their locations.
6 of them, nearest first, with their own page of live status and past discharges:
If flooding is forecast in Millbrook, 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.
Millbrook gets about 863 mm of rain a year on average (wettest month November, 105 mm; driest July, 48 mm). That is 26% drier than the UK as a whole, which averages 1,163 mm a year. See the rain gauges →
A thirty-year average for the area, not a forecast and not a flood risk on its own. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.7 km away. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.
Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of the town centre — most recent first. These are records of mapped extents, not a full list of floods. See them on the map →
Records, not floods: no outline on the record is not evidence a place has not flooded.
Current verdict: Normal. No official flood warning is active nearby and the closest river stations are within normal ranges.
Millbrook has river level monitoring on Tanners 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 1 recorded flood extent around the town centre since 1703, most recently in 2000. That is a count of mapped extents, not of separate floods. Records, not floods: no outline on the record is not evidence a place has not flooded. See the flood history link below.
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