The inundated US city could see up to 12 inches more rain from Tropical Storm Harvey on Tuesday.
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Over a metre of rain has already fallen in Houston in the past few days and there's more to come.
Over a metre of rain has already fallen in Houston in the past few days and there's more to come.
Record water levels are only expected to surge further following a huge storm in Texas.
Read moreThe US city of Houston is in the grip of the biggest storm in the history of the state. Ben Rich has the latest details.
Days after Hurricane Harvey struck Texas, people there do not know when the destruction will end.
The BBC speaks to flood-hit residents of La Grange, Texas, west of Houston.
Eyewitness accounts from Houston, a city of millions being battered by floods after a massive storm.
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Will Houston avoid the mistakes seen after the 2005 New Orleans disaster.
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Up to 2,000 people have already been rescued in the area, Texan authorities say.
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