53 | Northern Ireland is warned of 'grave' impact of a no-deal Brexit, March 5, 2019 +Same day as Irish stamps bomb scare

Today is March 5 or 5/3, like 53.  Notice the emphasis on 'grave'.

https://www.bbc.com/news/uk-northern-ireland-47462143

This comes the same day as the "Irish stamps explosive scares" in London.

Read more about that here:
http://freetofindtruth.blogspot.com/2019/03/47-64-explosives-found-in-london-at.html