The first signs are due tomorrow (Tuesday November 27) late afternoon with the wind picking up and rain arriving.
The Met Office has once again issued Danger to Life Warnings, which are today concentrated in south-west Scotland and south-west England.
Many parts of the United Kingdom are being warned to brace themselves for strong winds, heavy rain and even power loss and flying debris - as a result of Storm Diana hitting the country.
On Monday morning the Met Office issued a yellow warning for rain for parts of Tayside effective from noon until 11pm on Wednesday, and another one for wind from noon on Wednesday until 3am on Thursday.
Gales will abate somewhat, but further spells of heavy rain can be expected on Wednesday night - especially over eastern counties.
Winds could reach 70mph or higher in exposed areas.
The yellow warning runs from 03:00 until 15:00 GMT.
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"On Friday this low, which has joined with Diana, will move towards Scotland, winds won't be as strong as on Wednesday or Thursday but it will still be breezy".
Meanwhile Keswick, Cumbria, saw 47.4mm of rain.
"Storm Diana will make its way towards the west and that will certainly beef up the rain".
"Storm Diana will become engulfed by another low-pressure system in the Atlantic working its way towards the UK". The next name to be used will be Deirdre.
Southwest winds will be strong with further gale gusts.
Gardai and the Road Safety Authority are warning motorists to excercise caution on the roads during the storm while ESB Networks is warning people not to approach fallen wires.
"If the road ahead is flooded, don't chance it - flood water can be deceptively deep, so turn around and find another route".