A spell of heavy and persistent rain on Friday has the potential to cause some flooding.
A zone of heavy rain associated with an intense weather system affecting western parts of the UK will become slow moving for a time, bringing prolonged rainfall and the potential for surface water flooding.
Areas of high ground exposed to the south and south west will be most affected, with the potential for over 60 mm of rain in 12 hours in the most exposed locations, and over 100 mm by the end of the day.
The rain is expected to be accompanied by strong winds, which when combined with high tides may lead to some coastal impacts due to large waves. In addition, these winds may increase autumnal leaf fall, which would increase the potential for blocked drains and culverts, heightening the flooding risk.
Gusts 50 to 60 mph are likely in some places, with potential for gusts of 70 to 80 mph around exposed coasts and hills. High tides are also near their peak, heightening the risk of coastal impacts due to large waves.
There is a chance of gusts over 80 mph in the Western Isles during the afternoon and evening. The strongest winds are expected across eastern areas of Northern Ireland during the early morning followed by Scotland from late morning onward.
What to expect
- There is a small chance that homes and businesses could be flooded, causing damage to some buildings
- There is a slight chance of power cuts and loss of other services to some homes and businesses
- Where flooding occurs, there is a slight chance of delays or cancellations to train and bus services
- Spray and flooding could lead to difficult driving conditions and some road closures
- There is a small chance that some communities become cut off by flooded roads