Spells of rain will arrive as the night progresses before turning heavy, potentially torrential, overnight and into the first part of tomorrow morning.
Localised flooding where run-off water collects is possible, although breaches of the main waterways such as the River Medina and the River Yar is not expected. Any elevated water levels will quickly return to normal within 24-48 hours.
10-15mm of rainfall is possible in some parts on the Island and whilst this may not seem like huge amounts, it will fall in short torrential bursts which could lead to brief flash flooding in places.
Jamie Russell, Chief Forecaster at IW Met Service, says:
“It seems likely that the heaviest rain will have cleared before the morning rush hour although we cannot completely rule it out as the timing may change a little.
“Based on various computer models it seems likely that further heavy showers will arrive through the day, although there are some contradictions to this, so we will keep you updated”.
The warning is in force from 02:00 tomorrow morning until 09:00.
You can get all the latest weather forecasts and information at www.iwmetservice.co.uk – official weather partners of Island Echo.