I had a question regarding EU261

I just got off the BA114 JFK-LHR which was due to arrive 0935 today (28 Jul). It ended up arriving at 1118 which means I've missed my connection to Dublin, scheduled for 1035 (this short connection was booked direct with BA) .

The next BA flight that has seats is at 1735 and means I arrive 7 hours late to my final destination. The question is whether EU261 would apply as:

BA114 was initially delayed 42 mins due to a late arriving aircraft (pushing departure from 2130 to 2212)

JFK was then hit by a storm which pushed departure back a further hour to 2312 and by the time we finally took off, midnight

Any advice? Thanks!