https://www.icao.int/NACC/Documents/Meetings/2013/ALACPA10/ALACPA10-P23.pdf
Noted: runway 10/28 at NAS JAX is not grooved
https://en.m.wikipedia.org/wiki/Microburst
Given the proximity of the weather to the runway and the flight path/speed of the aircraft it very well could be a classic “microburst” encounter.