Originally Posted by
booze
Reported TWR wind was 010/17. Anyhow even 5 kts of crosswind is enough to highly reduce the effect of wake caused by the preceding aircraft, if any.
Actually, a light crosswind can actually make it worse. Wingtip vortices move slowly outward away from the departure runway. A light crosswind can effectively hold the upwind vortex on the runway. Not saying that's the case here, but it's something to consider when judging your separation needs.