← Back
Water Level Falling
0.34

Browndown

Alver
East Hampshire catchment • Gosport • Hampshire • ID: E11350 • Level
(23m ago) • 4 readings/hr • 121 views

Set water level alerts

Get notified about Browndown — tick as many as you like, they all share the notify settings below.

Unusual rise FloodRadar+Top 1% rise rate for this gauge.
Drag the line on the chart, or type a value: mAOD
Quick pick:

Each one is saved as its own alert — pause or remove them individually any time.

Not an emergency service — if in danger call 999. Alerts rely on EA/SEPA data and are best-efforts. Terms

Current Level
0.340 mAOD
▼ Falling (-6cm/hr)
24h Max
0.456 mAOD
24h Min
0.218 mAOD
Typical Range
0.13 - 1.60
mAOD
Highest Recorded
2.12 mAOD
20 Jun 2024
Since Sep 2018
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Rising · +8 cm over 6h
24 Aug 00:30 ▼ -2 cm 0.340 mAOD
24 Aug 00:15 ▼ -2 cm 0.356 mAOD
24 Aug 00:00 ▼ -2 cm 0.372 mAOD
23 Aug 23:45 ▼ -2 cm 0.391 mAOD
23 Aug 23:30 ▼ -2 cm 0.410 mAOD
23 Aug 23:15 ▼ -2 cm 0.431 mAOD
23 Aug 23:00 ▼ -0.6 cm 0.450 mAOD
23 Aug 22:45 ▲ +3 cm 0.456 mAOD
23 Aug 21:30 ▲ +1 cm 0.426 mAOD
23 Aug 21:15 ▲ +1 cm 0.414 mAOD
23 Aug 21:00 ▲ +2 cm 0.401 mAOD
23 Aug 20:45 ▲ +2 cm 0.386 mAOD
23 Aug 20:30 ▲ +2 cm 0.371 mAOD
23 Aug 20:15 ▲ +2 cm 0.355 mAOD
23 Aug 20:00 ▲ +2 cm 0.339 mAOD
23 Aug 19:45 ▲ +2 cm 0.323 mAOD
23 Aug 19:30 ▲ +2 cm 0.306 mAOD
23 Aug 19:15 ▲ +2 cm 0.289 mAOD
23 Aug 19:00 ▲ +1 cm 0.274 mAOD
23 Aug 18:45 0.261 mAOD

Rainfall & Weather

Loading rainfall and weather data...

Flood history near this gauge

Official Environment Agency warnings issued since 2011 for the 21 flood areas linked to this gauge (nearest 0.1 km away).

1severe warning 33flood warnings 225flood alerts

Most recent flood warning: 2 Feb 2026Wallington

Year by year
YearSevereWarningsAlerts
2026 0 2 8
2025 0 0 14
2024 0 5 23
2023 0 2 18
2022 0 1 15
2021 0 3 11
2020 0 1 29
2019 0 2 15
2018 0 0 9
2017 0 0 5
2016 0 0 9
2015 0 0 3
2014 0 12 35
2013 0 4 17
2012 1 1 12
2011 0 0 2

Warnings apply to a whole flood area, not necessarily this exact spot. Years before 2006 aren't covered by the EA's historic record. See also the Gosport flood history.

Nearby Stations

Loading nearby stations...

Station Details

  • Monitoring Station: Browndown
  • Watercourse: River Alver
  • Nearest Town: Gosport
  • County: Hampshire
  • Coordinates: 50°47'31"N 1°10'14"W (50.791953, -1.170468)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 23 Jan 2003
  • Status: Active
  • Station Type: River level station
  • Station Reference: E11350
  • EA Gauge ID: E11350-level-stage-i-15_min-mAOD
  • Parameter: Level
  • Unit: mAOD
  • Typical rise rate: 7 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: No
  • Catchment Area: East Hampshire
  • Datum: 0.040m AOD
  • Typical Range: 0.130 – 1.600 mAOD
  • EA Cross-check: 0.36 mAOD (EA at 24 Aug 00:15)

Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.

Frequently asked questions

Is the River Alver at Browndown flooding today?

The current level is 0.34m, which is within the typical range of 0.13 to 1.60m. Flooding is unlikely at this level.

Is the river level rising or falling at Browndown?

Based on the most recent readings, the level is currently falling. The chart above shows the last 7 days of measurements, updated roughly every 15 minutes.

Why is the level slowly falling?

When little or no rain has fallen for a while, a river level gradually drops as the water stored in the ground and soil drains away with nothing to replace it. This is called baseflow recession and is normal in dry spells. Only about 7.5mm of rain has fallen nearby in the last 7 days, so the flow is being sustained mainly by groundwater. A gentle decline like this is expected and is not a sign of a problem — downstream gauges often recede a little faster than headwaters further upstream, and levels recover once rain returns.

What is a normal level for the River Alver at Browndown?

The typical range at this station is 0.13m to 1.60m, based on Environment Agency historical data. Levels above 1.60m are higher than usually seen and may indicate a flood risk.

How often is this river level data updated?

Readings are taken by the Environment Agency gauge roughly every 15 minutes and FloodRadar refreshes its data continuously, so the level shown is normally less than an hour old.

Embed this gauge on your website

Free live river-level widget — ideal for parish councils, angling clubs and local sites. Updates automatically.

Preview

📮 Flood risk by postcode near this gauge

Postcodes within 5 km with properties in the Environment Agency’s rivers-and-sea flood-risk bands:

Check any UK postcode’s flood risk →

🏠 Buying or renting around here? Get the Property Flood-Risk Report for any English postcode — official risk band, floods since 1946, warning history, river behaviour and nearby storm overflows. £19 one-off. Learn more →