San Diego paving the way for Omicron dominance.

S-gene target failure (rough proxy for Omicron prevalence) in San Diego. Now over 40%. Doubling time 1.8 days. Omicron is expected to become dominant there in the coming days.

I think in general you can assume Omicron will become dominant in most jurisdictions in the US over the next 1-3 weeks.

When it does become dominant, expect a rapid case increase. This case increase may not be fully visible as testing capacity gets overloaded in the short term.

If you got boosted you've done some good to reduce your risk of infection and subsequent transmission. If you are vaccinated at any stage you'll likely be protected from severe disease, but the unboosted vaccinated are quite vulnerable to infection with Omicron.