From the Environment Agency:
Flooding is possible this evening Thursday 29th November and potentially overnight. River levels on the River Tamar continue to remain high following the heavy rainfall today and last night.
This may cause flooding to low lying land and roads close to the river on Thursday evening. Further heavy showers are forecast for the rest of Thursday and also into Friday 30th November.
We expect the river to remain high throughout this period, though no flooding to properties is currently forecast.
Take care near the areas of concern and monitor your local weather conditions. We are monitoring river levels and have staff in the area checking for and clearing blockages.