The Met Office have issued a weather warning for Largs and surrounding area for tomorrow.
After the good spell weather today, the picture is expected to change.
A Met Office spokesman said: "Heavy showers and thunderstorms on Thursday have the potential to bring surface water flooding in a few places, and disruption to travel.
"There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds
"Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services
"Spray and sudden flooding could lead to difficult driving conditions and some road closures
"There is a small chance that some rural communities could temporarily become cut off by flooded roads."
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