high tide
flow, flood, rising tide, surge, influx, afflux, congestion, lug, boss
flowed-in, that has flowed in, streamed-in, accumulated (by influx)
Летом в городе большой наплыв туристов.
There is a large influx of tourists into the city in summer.
В больнице ввели триаж из-за наплыва пациентов.
The hospital introduced triage because of the influx of patients.