http://www.bbc.co.uk/weather/coast/tides/tides.shtml?date=20100719&loc=0128

Time Type Height (metres)
0519 High 4.1
1116 Low 1.1
1743 High 4.2

I am now keeping a tight check on the BBC tides website. Today we do not have a second LOW tide for some reason - perhaps because it will be tomorrow...

Secondly - okay I made a mistake yesterday - not adding the 11 minutes on but I still find it odd that upon the TENDRING DISTRICT COUNCIL version of UK HYDROGRAPHIC OFFICE data - the BBC always leave a minute off the second HIGH TIDE forecast:

05:09 + 11 = 0519

17:33 = 11 = 1744

Why this simple mistake?