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50596Re: Virgin River way down?

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  • Glenn Ray
    May 4, 2013
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      You nailed it Joe. The flood mode peaked on April 30 and has been dropping since.

      What's unusual is that the daily cycles have stopped since May 1 and haven't been above 150 cfs (the cutoff rate) since. It's almost as if something's damming it all up.

      --- In Zion_National_Park_Hiking@yahoogroups.com, "Joe Braun" <joe@...> wrote:
      >
      > Continuing the numbers game since I love checking the USGS North Fork water guage and comparing it to the Kolob SNOTEL report... The Virgin River is now in flood mode spending the last 4 days well above 100cfs. This corresponds to a big meltoff above; in April, we averaged maybe one inch of snow meltoff a day. Over the past week, we're seeing 3-7 inches of snowmelt a day which is making the Virgin spike. The Kolob snow depth is down to only 6 inches now, so I'm betting that the Virgin will go well under 100cfs in the next 5 days.
      >
      > This is several days ahead of last year which was already a very wimpy spring runoff year. -Joe
      >
      > --- In Zion_National_Park_Hiking@yahoogroups.com, "Glenn Ray" <glennlray@> wrote:
      > >
      > > Because I'm a numbers junkie, I've plotted the North Fork river levels for 2012 and 2013. It looks down from last year with no positive trend in sight.
      > >
      > > The spike in mid-January came right after an equipment malfunction, so it may be related to that (the peak was 10.04 feet).
      > >
      >
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