Ebb Tide Flag Warning
Current conditions
How the flag colour is determined
Every day at 6 am and 6 pm the lowest tide reading for the Richmond tide gauge is taken for the preceding 12 hours.
- If the value is 2.6 metres or above then the flag is red.
- If the value is 1.7 metres or above but less than 2.6 metres then the flag is yellow.
- If the value is 0 or above but less than 1.7 metres then the flag is green.
- If the value is less that 0 then the flag is black.
Essential, up to date safety information and advice for water sports participants and those supporting navigation and commercial shipping 0n the tidal Thames.
