"The Blob" was a phenomenon of persistent high pressure along with the warm water that was the primary factor in California's worst ever 2013-14 and 2014-15 seasons in succession, barely nosing out 1975-76 plus 1976-77.
2013-14 was neutral and 2014-15 was weak El Nino.
El Nino has a reputation of drier weather in Australia, which presumably means increased fire risk.
As for the hype over the upcoming northern winter, the whole point of El Nino as a weather predictor is that it tends to be stable from about August to February. Since the northern spring is when El Nino is least stable, I have historically been skeptical of early predictions. However the history does show a "momentum" factor. The
ONI Index has moved from -0.4 three months ago to +0.5 now. The other comparably large moves from negative to positive in this February to May timeframe were in 1957, 1965, 1972, 1997 and 2023. The ensuing December ONI values were +1.5, +2.0, +2.1, +2.4 and +2.0. So yes I'm inclined to believe the predictions this time.
My analysis of El Nino for North America's ski areas is
here. I generally do not rewrite that page until there are significant El Nino of La Nina seasons to add. The past two ski seasons have been close to neutral.