Chart: ‘Precipitable Water’ in the atmosphere over southern Louisiana (Baton Rouge)

by
Climate Feedback / Storm Prediction Center

The chart above from the National Weather Service’s Storm Prediction Center shows that the amount of ‘Precipitable Water’ in the atmosphere over southern Louisiana (Baton Rouge) was unprecedented just before the flood.

This flood fits a pattern: a recent study found that most urban flood events over the past 40 years exhibit very high amounts of precipitable water in the atmosphere.[1]