"The remnants of Storm Helene will move northeastwards across Wales and England during Monday night and Tuesday", says the latest update.
The Met Office issued two "yellow" alerts yesterday as Storm Helene began creeping towards south-western corners of the United Kingdom and the tip of Ireland.
Winds are still expected to reach up to 50mph across the yellow warning area. A warning was put in place to run for 12 hours beginning at noon today for Galway and Mayo - with up to 1.6in (40mm) of rain expected.
The Met Office said: "Storm Helene is expected to push north-east towards the United Kingdom late Monday, before clearing quickly to the north of Scotland through Tuesday morning".More news: Weaker Florence still an extreme danger as landfall approaches
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A spokesperson for The Weather Channel said: "The uncertainty in the forecast remains on Tuesday".
The government of Portugal issued a tropical storm watch for the Azores Islands.
Emma Smith, meteorologist with the Exeter-based Met Office, said more details would emerge within the next day over what impact the storm might have.
Another thing you'll notice is how warm it is, with temperatures generally not falling below 16 to 18C over England and Wales and 13 to 15C across Scotland and Northern Ireland.
Tuesday should start dry and sunny for England and Wales, according to forecast models.
The majority of Helene's strong winds had been predicted to spend themselves over the Irish Sea from Monday night and into Tuesday morning but winds are now set to continue into Wednesday.