Burn ban head scratcher

I swear to God, those folks in Louisiana make us Mississippians look down right intelligent some days. Let’s go look and see if the iPad has a therefore sign. It does not. But you know what I’m talking about. That little triangle of dots that indicates, e.g.,

Hurricane therefore burn ban


3 Responses

  1. They’re talking about 20 inches of rain in NO…
    I can’t even imagine 20 inches of rain!!!!

    If only there were some way to pump it over to us!! New Mexico, Arizona and Calif – and western Texas….all could use it! New Orleans shouldn’t get to hog it all!!

    1. 20″ is indeed a lot of rain. We could get up to 10″. Here’s something I once had my students do– a very long time ago– when teaching both metric system, and some environmental biology.

      Take some paved outdoor space of reasonable dimension– driveway, small parking lot. Measure length & width in feet or yards. Set aside.

      1 inch of rain is a volume of water– 1 cubic inch.

      1 inch = 2.54 cm. 2.54 * 2.54 * 2.54 = 16.39 cubic cm. Round down (so as not to over inflate the eventual stat) and once inch of rain is 16.3 cubic centimeters of rain.

      By definition, 1 cubic centimeter of water = 1 ml (and has a mass of 1 gram but that’s irrelevant here) [and I can’t remember but there’s a pressure component to this too]

      1″ rain = 16.3ml.

      Convert your measurement of the driveway to cm. Let’s say 10′ x 20′ … 304.8cm & 609.6cm, respectively.

      Now, drop an inch of water on that surface.

      304.8 * 609.6 * 16.3 = 3,028,639.1 cubic centimeters or ml of water.

      How many liters is that? 3028.6391 call it 3028.

      Divide by 2 b/c everyone knows how much is in a 2-liter bottle.

      One inch of rain falling on a paved surface is more than 1500 2-liter bottles of water. It can’t go down, so it runs off.

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