CNN is calling Hurricane Patricia “The Most Dangerous Hurricane in History.” Another news outlet showed a picture of the hurricane and pointed out “The Enormous Size of Hurricane Patricia.”

Both of these are wrong. Size matters with hurricanes. A category 5 hurricane that is twice as large as another category 5 hurricane is “more dangerous” all else being equal, and by “all else” I mean things like exactly where it hits, how fast it is moving, exactly how strong it is (category 5 includes a very wide range of wind speeds because it is the highest category). Hurricane Patricia is not huge.

Patricia is very dangerous, has a very low pressure center and very strong winds, both being at or near record breaking levels. But the hurricane is small. Here’s a VERY rough size comparison between two of the well known and very large hurricanes that I just slapped together:

The larger hurricanes will cover more area with their dangerous winds, may have a more extensive storm tide, and will very likely bring a lot more rain inland. Patricia will do very bad things where it makes landfall, which is actually happening as I write this, but that area will be smaller than a Katrina like hurricane. And it will bring a fair amount of water inland, but not nearly as much as a monster like Haiyan would have.

So yes, take Patricia seriously. But I expect to see a lot of yammering after the fact, from certain factions, about how everyone was being very alarmist about Patricia when in the end it was not a Katrina.

So let it be understood. Patricia is no Katrina. But it is impressive in its own way.