Met Eireann's Evelyn Cusack has criticised social media users for issuing fake weather reports as Storm Brendan threatened to wreak havoc.
The head of forecasting issued a request to people to stop tweeting made-up weather reports, branding it extremely irresponsible.
She warned the public to beware of fake news.
Speaking on Sean O'Rourke's show on RTE Radio 1 yesterday, she said people had been putting out fake weather charts ahead of Storm Brendan reaching our shores.
After giving the broadcaster the latest on the storm's progress over Ireland, she made a personal appeal about people putting out misleading weather messages.
"I just want to say, could I ask people to stop tweeting fake weather warnings and fake weather charts," she said.
"There's some really crazy stuff out there and it's very irresponsible.
"There's a whole lot of fake weather charts with red warnings on them and everything.
"The Met Eireann warnings are out, we spent the last two days considering this very carefully. We have a full team of people here with the best high resolution model."
She has advised people to take the advice of the local authorities, gardai and coastguard when it comes to staying safe during weather events and not be misled by unofficial sources.
"Maybe some people think they are better at forecasting the weather by looking out their window than the full team at Met Eireann are," Ms Cusack said.
"We run a 24/7 operation paid for by the citizens of Ireland."
Clearly exasperated, she added that she found it "personally astounding" and appealed for social media users to be more responsible.
Ms Cusack also delivered a warning about the band of thunderstorms moving eastwards which could lead to more power failures.
A status red gale warning was in place throughout the day as southerly winds reached storm force on all coastal waters and on the Irish sea, with violent storm force winds expected at times.
Nationally, there was a status orange wind warning with the worst of the weather expected to batter the country yesterday afternoon.