Source: ADM 199/153
Tuesday 27th February 1945
(a) HMS Harrier sailed at 0430 to lay datum dans.
HMS Hazard sailed at 0445 with dan layers Sir Lancelot, Sir Galahad
and Lord Ashfield.
HM Ships Seagull, Halcyon and Speedwell sailed at 0515. Sweepers and
danlayers to rendezvous with Harrier North West of Area.
– 5. Details of sweep)
At 1000… a mine detonated in Hazard’s (rear ship) sweeps. The plume
was about 30 feet… Inquiries were made of her and she was unable to
determine when or where she had picked up this mine…
During the second lap a mine detonated in Seagull’s sweep and parted
it. There was no plume and from this fact and her position it was
assumed to be one of our deep mines...
1334 the visibility, which had been good, closed down to half a mile
and then became thick fog. Sweeping was abandoned as it was 4 hours
passage to the anchorage for the danlayers and it was thought
prudent to have them inside our patrols before dark.)
Wednesday 28th February
Flotilla and danlayers ordered to return to Harwich by the C in C