Re: 300 lightning strikes
Raids could be swift. The concentration of bombers in space and time is what allowed the RAF to overwhelm the Luftwaffe defences.
In operation Gomorrah, the July 1943 attack on Hamburg, "728 aircraft dropped their bombs in 50 minutes"
In the 1945 attack on Dresden the first 250 bombers dropped their payload (500 tons of HE and 370 tons incendiaries) in a space of 10 minutes.
In the second part of that raid, 3 hours later, 500 bombers took 25 minutes to unload 1800 tons of bombs.