The military flypast over Buckingham Palace to mark the coronation of the King and Queen has been scaled down because of the weather and will now be formed of helicopters and The Red Arrows, the Ministry of Defence said.
More than 60 aircraft from the Royal Navy, British Army and Royal Air Force had been due to take part.
But the event will now only involve helicopters and the Red Arrows aerobatic display team, the Ministry of Defence said.
The King and Queen were expected to watch the flypast from the balcony of Buckingham Palace.
The display over The Mall and Buckingham Palace was originally meant to last for six minutes, but the scaled-down version will last for less than half of that time.
The MoD said it would last for two minutes and 30 seconds.
On Friday Royal Air Force (RAF) Air Chief Marshal Sir Michael Wigston has said “it’s 50/50” as to whether the event would go ahead at all, and the final decision will be made just one or two hours before it was due to start.
Forecasters expected conditions in London to be cloudy and wet on Saturday, which could hamper the ability of pilots to fly safely.
More than 60 aircraft from the Royal Navy, British Army and Royal Air Force – including the Red Arrows – were scheduled to fly over The Mall and Buckingham Palace at around 2.15pm.
The King and Queen Consort are due to appear on the palace balcony with other members of the royal family to watch the six-minute flypast.
There were fears the flypast for the late Queen’s coronation in June 1953 would be called off due to bad weather, but after conditions improved it went ahead at 5.15pm following a delay.