Today a ferry from Macau was cancelled (not sure where he was going nor which company) but still cancelled and this is most probably not weather related.

Don't you feel a little stressed by the situation ?, I'll (maybe I stress for nothing)
Will it be easier to return to the HK the previous evening where you can take a taxi / bus / train to go to the airport the next morning ? Macau is only one hour from HK / Kowloon and you can spend your evening in Macau and return to HK (until midnight they have ferry every 15 mns)

Just my 5 cents