The Environment Agency has warned that flooding is "likely" in parts of north Norfolk and the Norfolk Broads.
Two alerts have been issued with one covering a large selection of the Norfolk Broads around the tidal Rivers Bure, Ant and Thurne.
The Broads have seen back-to-back alerts in recent months due to a tidal locking effect in which high tides block the natural flow out of the rivers.
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Flooding is also "likely" in north Norfolk on the River Burn from Southgate and Waterden to Burnham Thorpe.
These alerts were issued this morning and are expected to last for at least the next 24 hours.
The Environment Agency said: "River levels remain higher than normal in response to high groundwater levels following the rainfall this winter.
"Areas most at risk are low-lying roads and riverside areas. Flood water is dangerous. Don't put yourself or others at risk."
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