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River Thames level downstream at Marlow Lock

This measuring station takes 2 measurements. You're viewing the downstream level. View the upstream level.

Latest at 3:00am on 6 May

Height
2.20m
Trend
Steady
State
Normal

Normal range 2.02m to 3.23m

Height in metres over the last 5 days

Threshold: 3.23m Top of normal range2.22m 6:15am, 1 May2.18m 9:00am, 1 May2.25m 11:00am, 1 May2.21m 6:45pm, 1 May2.24m 7:00pm, 1 May2.21m 7:45pm, 1 May2.22m 7:30am, 2 May2.25m 7:45am, 2 May2.21m 8:30am, 2 May2.25m 11:15am, 2 May2.16m 4:45pm, 2 May2.20m 5:00pm, 2 May2.19m 6:45am, 3 May2.21m 7:15am, 3 May2.19m 8:45am, 3 May2.24m 9:15am, 3 May2.16m 10:00am, 3 May2.21m 3:00pm, 3 May2.12m 3:15pm, 3 May2.25m 3:30pm, 3 May2.18m 5:00pm, 3 May2.21m 7:45pm, 3 May2.18m 8:00pm, 3 May2.17m 7:30am, 4 May2.19m 7:45am, 4 May2.15m 9:15am, 4 May2.22m 9:30am, 4 May2.15m 9:45am, 4 May2.20m 12:30pm, 4 May2.11m 1:45pm, 4 May2.25m 2:45pm, 4 May2.12m 3:30pm, 4 May2.20m 4:15pm, 4 May2.16m 5:00pm, 4 May2.15m 8:00am, 5 May2.19m 10:00am, 5 May2.13m 2:45pm, 5 May2.19m 3:00pm, 5 May2.14m 3:15pm, 5 May2.19m 6:00pm, 5 May2.20m 2:00am, 6 May
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How levels here could affect nearby areas

4.73m
Water reaches the highest level recorded at this measuring station (10 February 2014)
4.27m
Property flooding is possible above this level
3.23m
Top of normal range. Low-lying land flooding possible above this level. One or more flood alerts may be issued.
2.20m
Latest level

Flooding might not happen again at the same historical levels. This may be because flood management schemes are now in place.

How we measure river, sea and groundwater levels