This joyous Jewish celebration is on 15th of Av, which is July 27th, which is the date of the blood moon. Loads of things converging here. It's difficult to put an interpretation on what it all means. The first link describes what Tu B'Av is all about. The second link gives fascinating details of the coming lunar eclipse on July 27th. This is a very special eclipse. Very unusual in it's length (time). I propose that this is a very high watch date. This blood moon will be seen in Jerusalem.The Meaning of Tu B'av
Total Lunar Eclipse on 27–28 July 2018 – Where and When to See