They omitted the lede - the original plan for that day was disrupted by very severe sea and weather conditions; Eisenhower decided to risk the landing with a go

They omitted the lede - the original plan for that day was disrupted by very severe sea and weather conditions; Eisenhower decided to risk the landing with a good chance of better weather by then, but would he have done so with less certainty about the tidal conditions as well? It was a close decision, so perhaps not, in which case there wouldn't have been a battle that day at all.