Firefighters have been called to over 70 flood related incidents over the past five days, according to Dorset Fire and Rescue Service.
The service has issued a warning to motorists to avoid standing or flowing water when travelling in the county within the next 24 hours.
People are still taking risks and driving into water where the depth is not always clear, a spokeswoman said.
She said: "Emergency services, local authorities, the Environment Agency and Highways Agency are still warning motorists to avoid standing or flowing water when out and about over the next 24 hours.
"The message not to travel through water of unknown depth is quite clear, however, people are still driving into water and putting themselves and their passengers in danger."
Although rain is subsiding, water levels could still rise so motorists are urged to drive carefully.
The spokeswoman added: "There is also a risk to properties near to the side of roads which have been flooded, with bow waves from vehicles entering peoples' homes.
"People are therefore being urged to drive responsibly, do not enter flooded roads and obey all road signs at all times.
"Drivers are also being urged to check Highways Agency and other agency websites for road closures before setting off, especially across the main Dorset route system."
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