NY flight delayed - waiting to transfer to SPB

Due to a big thunderstorm, my flight to Paris has been delayed by at least 3 hours. So I missed my St Peterburg flight, which means that I'm patiently waiting to board on the next one and arrive in SPB, except that this aircraft will land around 9:30pm tonite - 1 lost day... I had plan to buy the transmongolian train tickets today. Hopefully there will still be some room tomorrow... Ksenia won't be able to meet me at the airport, someone else will...