"Inland gusts of 55 miles per hour are expected quite widely, with some places having gusts to 70 miles per hour, more particularly around exposed coasts and hills".
The warning is valid from 5am on Friday morning to 6am on Saturday.
A yellow weather warning for wind and rain is in place from 9am.
The forecaster expects the Storm to hit on Friday bringing Status Orange winds of up to 130kmph to some counties.
The Met Office issued two weather warnings on Friday: for strong winds across Northern Ireland and western Scotland until the evening, and for heavy rain in Scotland that will continue until Saturday afternoon.
Gusts of 50 to 60mph inland and occasionally 70mph along exposed coasts could cause delays to road, rail, air and ferry transport and blow over lorries, the Met Office has warned.
She said: "It's going to be a noticeably windy day everywhere today".
Overall, Friday will be a very windy day with strong to gale-force southwesterly winds gradually veering westerly.
Not only this, there is a possibility of large waves in coastal areas, power cuts, fallen trees, along with a risk of flying debris.
With Storm Erik set to barrel through the United Kingdom in the coming days, the bookies now make it just a 7/4 shot of 80mph winds.
On Saturday, the severe wind warning is extended to Central, Tayside and Fife, northeast England, northwest England, Northern Ireland, southwest Scotland, Strathclyde and Yorkshire and Humber.