A weather warning for heavy rain has been issued covering the whole of East Lancashire overnight.
The yellow warning is in place from 8pm today until 8am on Tuesday, and covers the whole region.
The warning from the Met Office warns of a "heavy spell of rain overnight" that could cause disruption.
The Met Office added journeys on the roads and rails will be made longer and more treacherous due to the conditions, there could be power cuts, and flooding may occur in some areas.
The chief forecaster said: "An area of rain will move northwards overnight, turning heavy for a time before clearing away northeast on Tuesday morning.
"While many places are unlikely to see impacts, it is possible the rain band could become slow moving for a time giving localised accumulations of 20 to 30mm in two to three hours, and perhaps 40 to 50mm in three to four hours, which could lead to some surface water impacts and delays to transport."
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