Monday, January 30, 2023

As expected, record rainfall causes disasters

The rainfall in Auckland that caused last weekend's flooding really was remarkable:

This marks an unprecedented rainfall event for Auckland and its surrounding areas, with some places getting a season's worth of rain in one day.

  • Auckland has recorded more than 769% of its normal January monthly rainfall and over 38% of its "entire ANNUAL rainfall" as of Monday morning local time, according to New Zealand's National Institute of Water and Atmospheric Research (NIWA).
  • Auckland Airport halted flights until Saturday after almost 11 inches of rain fell, flooding parts of the terminal and stranding hundreds of people over Friday night.

By the numbers: Kumeu, a suburb north of Auckland, observed 79% of its normal summer rainfall in just 15 hours, with more than 6.5 inches of rain, per NIWA.

When you see pictures not just of floods, but the landslides that follow, and you note that this is what is happening under just 1.1 degrees of temperature rise, you really have to wonder how climate change lukewarmers (the "it's real, but not as big a deal as they make out" types) can still get that to make sense in their heads.   

"Let's just wait and see how cities and town cope with the level on increased rainfall intensity at 2 degrees" just isn't a credible option.   (Not that it ever was.)   

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