Historic Rain at PDX Tuesday

There is any old adage that says “records are made to be broken”, and this my friends is exactly what happened yesterday across  the metro.  The perfect combination of lift from an area of low-pressure in Washington state combined with a conveyor belt of humid air provided all the ingredients for widespread heavy rain in the Willamette Valley.

The Numbers:

  • 1.03″ of rain in one hour – old record was 0.93″ in an hour
  • 1.55″ of rain for Sep 7th – old record 0.26″
  • 4th wettest September day on record

In case you were wondering, the last time this much rain fell in one day was New Year’s Day 2009 when 2.49″ of rain fell. So far this year Portland has received 25.54″ of rain, a 3.99″ surplus from the average amount of 21.55″. Last year at this time Portland had only accumulated 18.24″ of rain.

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