Zumbro River Levels Falling

September 27, 2010 3 Comments

After a record flood last week in Zumbro Falls, the water levels are continuing to slowly drop along the Zumbro River in that area.  While there is still flooding going on in Zumbro Falls today, there is at least hope in sight today that the flood waters will finally fall below flood stage by day’s end.  Below is a look at the latest hydrograph from the National Weather Service in La Crosse that show the water levels slightly above flood stage on Monday morning.  The actual river level is an estimate as the measuring instruments aren’t currently functioning.  Our dry forecast this week will allow those river levels to fall while our soils will dry out a bit.  Locations along the Mississippi will have to deal with rising waters, however, as flood waters from local tributaries will be feeding an overabundance of water into the river.   

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  1. Wayne says:

    I am curious about why the next higher level above Flood Stage is called Moderate Stage. What is the meaning of Moderate Stage? That appears to be a misnomer, but I bet there is a worthy explanation. And if you know, what is the meaning behind Action Stage, too.

  2. Steph says:

    I understand that “Action Stage” means that preparations for flooding should be taking place. Once the river passes flood stage (where water is now posing a threat to land and safety), the flood is then classified as Minor, Moderate, or Major. This varies across the river, depending on the river’s relation to land/human interests.
    Minor flooding means just that – some minimal flooding expected that could damage property and be a safety threat to citizens.
    Moderate flooding – a bigger deal. Roads, buildings, etc have somewhat been inundated by water. Evacuations may be necessary.
    Major flooding – significant flooding. Roads, buildings have all been inundated with water, with significant evacuations being necessary.

    From the NWS: “The severity of flooding at a given stage is not necessarily the same at all locations along a stream due to varying channel/bank characteristics on portions of the stream.”

    Hope this helps!

  3. Wayne says:

    I just KNEW there was a good explanation. Thanks!

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