More heavy rain could hit Whaley Bridge tonight after the town was evacuated due to flooding fears.
A dam wall collapsed at Toddbrook Reservoir on Thursday, following days of torrential rain.
A yellow weather warning is in place for the town, in the High Peak district of Derbyshire, from 9pm until 3am on Friday.
There is a 'small chance of fast flowing or deep floodwater causing danger to life', the Met Office warns.
The warning says some roads may be closed and there is a chance power could be lost.
The town was evacuated on Thursday afternoon over fears the dam could burst.
It prompted the Environment Agency to issue a 'danger to life' flood warning.
Residents from the town have been asked to congregate at Chapel-en-le-Frith High School.
Read more of today's top stories
A spokesman for Derbyshire police said: "Whaley Bridge is being evacuated due to the ongoing situation at Toddbrook Reservoir.
"If you are being asked to leave your home then please attend Chapel High School, Long Lane, Chapel-en-le-Frith, High Peak, SK23 0TQ, where further direction will be given.
"Police officers and staff will be at the school to provide further direction, though at this time we are not sure how long the evacuation will take.
"Residents are asked to make alternative arrangements to stay with friends and family, ensure that any pets are taken with them and that all medication that may be needed for a number of days is taken with them.
"If people do not have somewhere to go then they will be accommodated, however, there is limited capacity to do so.
"If you are unable to leave your own home and require assistance please contact 101 and ask for the police."
