I think turnout today will be closer to 450k across the state.
In Duval it is 13,601 as of 12:30 p.m. Duval voters were about 4.6% of all Florida voters in 2016.
So if Duval slows down but still gets to 20k today, I think something in mid 400k state-wide is likely.
Possible. With 450k * 3 days, about 1.2-1.3m. Half VBM by Wednesday.
I did add up all the counties (except Miami/Sarasota) at 11:30ET. Total was 2,645,224 (+135,931 for today so far).
135,931 was mail + IPEV.