It is the first weekend of April and the lucrative prawn fishery on the Porcupine Bank closes in three weeks for Irish trawlers.
The bank is 200km off the west coast.
Porcupine prawns are a prized catch, a delicacy.
Irish trawlers should be flat out, but Storm Kathleen has forced them to tie up in ports like Castletownbere.
Around 40 Irish boats fish for prawns on the Porcupine Bank.
This weekend, two dozen of those trawlers are tied up in Castletownbere in west Cork.
The remainder are taking shelter in other ports along the west coast.
"What Irish boats will lose this weekend is millions," Chief Executive of the Irish South and West Fish Producers' Organisation, Patrick Murphy said.
He said: "These boats have to travel hundreds of miles to come in and out, and burn fuel, and then they're not earning, and they're going to have to stay strapped to the pier wall for safety.
"It's going to have a huge impact on their earning power, because if your not fishing, you're not earning."
Johnny Walsh is the skipper and owner of Rachel Jay.
The trawler is one of the Irish boats tied up in Castletownbere this weekend, sitting out Storm Kathleen.
"We were broken down for the month of February," Mr Walsh said.
"To be tied up and losing parts of this month again, from a business point of view it will wipe us out," he said.
"It's exceptionally bad weather for the time of year. It's just a hard one to take," he added.
Michael Harrington's Ocean Venture II returned to shelter in Castletownbere too this weekend.
"The losses for this weekend alone will be up in tens of thousands," he said.
"The springtime is a very important time for us to fish prawns on the Porcupine Bank because the quality and the grade is at its highest at this time of the year," Mr Harrington added.
"This weekend, where the weather breaks, the boats have to commute in. That's 24 hours. They need another 24 hours to prep the vessel for the following trip, and it's 24 hours back out. Effectively, that's three days lost and the money, the bills, everything -- it still has to keep coming in."
Mr Murphy said he has been warning about the danger to the fishing industry here for a decade: "If we don't get some supports for this industry, Ireland won't have a fishing industry."
Mr Murphy claimed that fishermen are being pushed out of traditional fishing grounds, due to the development of windfarms and the designation of certain areas for marine protection.
"Soon there won't be a place for fishermen to fish," he said.
"And when you have a loss of time in the areas where you are allowed to fish, this could be the tipping point."
