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Want to find out what would be the highest volume of rainfall per MINUTE that would happen in SE Michigan?
... are there any records of volume/min as opposed to per day etc., Trying to figure out how my project would fair in the most intense minutes of the most intense rainfall of the year in SE Michigan, or any tips on finding out
Thanks!
Ok well with some more time spent on the internet I found some answers!
The measurement is called Rainfall Intensity, it is calculated from readings taken in increments as small as 5 minutes though in some cases only down to 15 minutes. And can be found by looking for flood and drainage plans. I found several record compilations made by states. You can search the term IDF Curve (Intensity-Duration-Frequency) or search IDF Estimates. They are often showed for storms mild to severe based on the terms 2 year, 5 year, etc to 100 year storm. The 100 year storm being such a storm that is only expected to occur every 100 years statistically. My State of MI in my zone showed the following numbers for a storm that lasts 5 minutes.... 2yr - .30in up to a 100yr - .57in, or for a storm that lasts 1hr... 2yr - 1.02in up to a 100yr - 2.31in.
