The 65-year-old broadcaster admitted she “hasn’t accepted” the changes, which will see her long-time editor and other key team members leave the station.
It follows the announcement that ITV is overhauling its daytime schedule, with Lorraine’s slot being cut from one hour to just 30 minutes.
The show will now run for 30 weeks a year on a seasonal schedule, while production is moving studios — a shake-up that has resulted in numerous redundancies behind the scenes.
Taking to Instagram, the Glasgow star shared a photo of her and Victoria Kennedy, and penned a lengthy, emotional message to her editor of almost ten years.
Lorraine wrote: “This wonderful woman @vejk100 has been my editor for almost a decade. She’s my fiercest defender, my finest ally and my very good friend.
“We’ve laughed and cried and not drank nearly enough. I still haven’t accepted that she’s had to leave along with so many of my brilliant team.
“To say I will miss them is the understatement of the century — BUT I count myself so lucky to have been with them on the craziest, happiest most emotional rollercoaster ride of all time.
“Wherever @vejk100 and the gang end up — they will bring hard work, enthusiasm and buckets of fun.
“And that’s what life should be like. ❤️ Thank you for everything — especially the shenanigans.”
Victoria took to the comments to reply with a meaningful: “Love you.”
Other TV personalities also shared their sadness at the news. Presenter Katy Hill expressed her sympathy, writing: “What a team! I’m so sorry so many are going. So much love to all.”
Jo Elvin chimed in with: “A dream team of our age,” while Dr Zoe Williams shared a series of heart emojis.
The new schedule will see Lorraine airing from 9.30am to 10am. This extends Good Morning Britain’s run time to three and a half hours, or four hours when Lorraine isn’t on air.
Kevin Lygo, the managing director of ITV’s media and entertainment division, explained the reasoning behind the shake-up.
He said: “Daytime is a really important part of what we do, and these scheduling and production changes will enable us to continue to deliver a schedule providing viewers with the news, debate and discussion they love from the presenters they know and trust, as well as generating savings which will allow us to reinvest across the programme budget in other genres.
“These changes also allow us to consolidate our news operations and expand our national, international and regional news output and to build upon our proud history of trusted journalism at a time when our viewers need accurate, unbiased news coverage more than ever.
“Daytime has been a core element of ITV’s schedule for more than 40 years and these changes will set ITV up to continue to bring viewers award-winning news, views and discussion as we enter our eighth decade.”