The recent fairly heavy rainfall, preceded by the extreme fires in Norcal and SoCal caused me to go back through my log books and look at weather going into Trans Pacs '97 and '99 and Pac Cup '98 . All three years were marked with higher wind speeds than the wind matrixes used for each event. I believe that 2015 was also above the norm, but I missed that year so don't have any real recording of it. However, all of those years had a fairly moderate or even strong El Nino preceding or during the year the races were held.
In reading research I came across this piece written in September of this year. Very interesting read.
I'll just leave it here: