Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

High rainfall event

  1. Feb 16, 2008 #1
    The town of Mackay on the Queensland coast recently had over 600ml of rain in a 6-hour event. This is more than the total annual rainfall for my home town in one event. Fortunately that town is used to infrequent floods and was not so disasterous. Does anybody know of similar or greater rainfall events occurring recently?
     
  2. jcsd
  3. Feb 16, 2008 #2

    Astronuc

    User Avatar

    Staff: Mentor

    Is that 600 ml/sq m?

    I've experienced about 0.3 m of rain in 24 hr period, or 0.5 m in 72 hrs, with up to about 5 cm/hr rate. About 18 months ago, we had two events like that, and the second event resulted in significant flooding.
     
    Last edited: Feb 16, 2008
  4. Feb 16, 2008 #3

    turbo

    User Avatar
    Gold Member

    Years ago, I had to fly into western Kentucky to conduct an on-site safety training seminar for operators of chemical recovery boiler operators at a pulp mill. Approaching the airport in Paducah, I could see water practically everywhere. They had gotten 6" (15cm) of rain in less than 24 hours the previous day. Since this region is at the confluence of the Ohio and Mississippi rivers and is quite flat, it is prone to flooding. To protect property from flooding from up-river surges, the rivers are bordered with levees and flood walls. The problem is that these barriers impede the run-off of waters from heavy rains, so the lands "protected" by these barriers remained flooded, and when I took of for St. Louis at the end of the week, the low-lying areas were still covered with standing water.
     
  5. Feb 17, 2008 #4

    Bystander

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?