For the first time in its 66-year history, the Royal Windsor Horse Show in Berkshire has been canceled due to severe flooding.
Much of south-east England received half a month s worth of rain in just a matter of hours this week, and waterlogged fields surrounding the event have been deemed unusable.
Thousands of people were due to attend the event Wednesday, including Queen Elizabeth.
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The event s organizers said they plan to announce a decision on whether the event will continue as planned on Thursday.
A marketing manager for the event said that Wednesday s cancelation was disappointing, but she hopes the remaining four days will go as planned.
“We’re doing the right thing because if we can keep [Wednesday] clear we will have a show for the next four days, Jo Peck said in a statement, according to the BBC.
Happy Birthday Queen Elizabeth! It’s Your Ultimate Royal Flashback
Queen Elizabeth is a longtime supporter of the event. Even before her father was King, the horse lover was a devoted Royal Windsor Horse Show attendee.
In honor of the Queen’s milestone 90th birthday, a parade of 900 horses on the private grounds of Windsor Castle on Thursday will still go on as planned.