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The stormy weather has been causing all sorts of problems across the UK - not least for the first live semi-final of Britain's Got Talent.
Monday night's show went off-air for several minutes, as ITV showed an apology and footage of former winners auditioning.
Declan Donnelly is hosting the live shows alone this year while fellow presenter Ant McPartlin takes time off.
Judge Simon Cowell joked: "Ant, you are coming back next year - don't do that!"
Dec apologised for the "technical problems" blamed on the weather during the early part of the show, which is broadcast from the Hammersmith Apollo.
He joked: "Going well so far!"
He also repeated voting information for anyone who had missed it.
Dec told the audience and viewers that nothing had changed, with the same judges and format, then joked: "And the presenters... well, probably best not to dwell on that."
There was also an apology on the BGT Twitter account.
But one viewer tweeted in response about the first act, Cali Swing: "Annoyed that #Caliswing didn't get to speak or receive feedback on TV with judges!! Unfair to start with! They were fantastic!!!"
It's not the first time Dec has hosted solo - he presented the last two episodes of Saturday Night Takeaway earlier this year without Ant.
Ant announced he was taking time off from his TV roles following his arrest on suspicion of drink driving in March.
Last month, he was fined £86,000 and given a 20-month driving ban after pleading guilty to drink driving.
The rest of the semi-finals will air throughout this week, with the final going out on Sunday.
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