Looking forward to my planned flights tomorrow on the first day of decent weather we've had over here for about 2 weeks, and doing my pre-flight due diligence I see this absolutely vast NOTAM has appeared over most of Southern England !
It's pretty huge duration as well, lasting at least 24 hours, and is a 'Formation Transit by multiple acft' between 250 ft and 3000 ft AGL. Any idea what that's about ? And I do wish they'd let you know in advance if they are going to go red or yellow when they kick in, or did they and I missed it ?!

(that's off dronesafetymap.com if anyone wonders)
It's pretty huge duration as well, lasting at least 24 hours, and is a 'Formation Transit by multiple acft' between 250 ft and 3000 ft AGL. Any idea what that's about ? And I do wish they'd let you know in advance if they are going to go red or yellow when they kick in, or did they and I missed it ?!

(that's off dronesafetymap.com if anyone wonders)
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