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2018 Atlantic hurricane season

Discussion in 'Environmental Discussion' started by tochatihu, Apr 5, 2018.

  1. Trollbait

    Trollbait It's a D&D thing

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    Yeah, ants love them.
     
  2. bisco

    bisco cookie crumbler

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    weather channel describing florence as 'the storm of the century'.:whistle:
     
  3. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    I don't know about you gentlemen, but I like a good century every couple of years or so. Helps me keep things in proportion.
     
  4. wxman

    wxman Active Member

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    Models and ensembles have been having a terrible time figuring out what Florence will do when it reaches the coast. Run-to-run consistency very poor!
     
  5. tochatihu

    tochatihu Senior Member

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    I imagine that Florence fatigue is growing, at least for folks far from action. Yet I wish to put another example of not-well constrained counting before readers here.

    Florence now carries (very approximately) 5 X 10^11 liters of water in condensed-liquid phase.

    Anticipated total rainout over land (from qpf7) exceeds 4 X 10^13 liters of water. That 80-ish ratio is unusually large. Such ratios are generally >>1 because hurricanes (as machines) transfer ocean water to land faster than they move away from ocean water sources.

    But this water transfer is big, like 2017 Houston-Harvey big, and it is also historically rare. While claiming nothing at all about climate change, I would suggest that dynamic hydrology is a thing to consider. Just as unchecked real-estate development, earthen dams*, coal-ash holdings, and hog-waste holdings have all been things to consider on the +money side.

    *Lake Marion in SC has a very large earthen-dam holdback. Please do send your thoughts and prayers...
     
  6. fuzzy1

    fuzzy1 Senior Member

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    wxman likes this.
  7. tochatihu

    tochatihu Senior Member

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    nhc.noaa.gov must be getting a lot of hits because they can no longer be accessed from this end of the pipe. Can still get NWS radar, which now shows eye etc. at NC coastal sites.

    Inland flooding in Carolinas seems to be largest concern.
     
  8. tochatihu

    tochatihu Senior Member

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  9. tochatihu

    tochatihu Senior Member

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    Forgot to mention that current* zaps are quite north of storm center.

    *like 30,000 amperes :)
     
  10. bisco

    bisco cookie crumbler

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    looks windy on the weather channel
     
  11. tochatihu

    tochatihu Senior Member

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    I searched in advance for mid-Atl coastal radio stns easy online. To hear how local folks interact with this event. So far I have come up dry. Radio stays with notable talk personalities (might be political to be specific) and ads for high-markup, but uncompelling financial and health--care products.

    One might conclude that things are not yet bad there. Or, that willful ignorance is a comfort.

    There.
    Anywhere.
     
  12. bwilson4web

    bwilson4web BMW i3 and Model 3

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    ABC news is doing great on the ground coverage. The others, not so much. Impressive flooding and storm surge. Cat-1, 90 mph winds, and the eye remains just off the coast and well formed.

    Bob Wilson
     
  13. bisco

    bisco cookie crumbler

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    weather channel isn't bad. lots of people on the ground in the affected area. some flooding but not too bad yet
     
  14. tochatihu

    tochatihu Senior Member

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    I took Wilsonian advice and am sitting on ABC. Here is one video screen capture:

    Cape Fear River boats.png

    Boats (>10 apparently) behind Ms. Robach are docked at or near mouth of Cape Fear River. I would speculate that water level will raise a lot there. So to any boaters here, would you not have thought to do something more than tie on a couple more lines?
     
  15. bisco

    bisco cookie crumbler

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    observing several hurricane forecasts over the years on cape cod, there was never enough time to get all the boats out.
    and always people who chose not to.
     
  16. wxman

    wxman Active Member

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    Most lightning strikes in tropical systems occur in the convective bands. The central dense overcast typically does not have a great deal of lightning strikes.
     
  17. tochatihu

    tochatihu Senior Member

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    So I have heard. I was on a roof in eye of Georges 1998 (kids don't try this at home) and eyewall was full of lightning all around me. One of those things that make an indelible memory, but are not easy to photograph.

    ==
    Gauged North Carolina rivers near coast are at or near flood stage:

    USGS Current Water Data for North Carolina

    ==
    Supertyphoon Manghkut finished crossing N. Luzon but status will not be reported fast and fully.. Will lose strength before it hits...well, you can see that for yourself easily enough.
     
  18. wxman

    wxman Active Member

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    The theory that there is typically not much lightning in the CDO is that since tropical systems are "warm core" lows, there is less WV that exists as ice crystals in the column. There certainly is enough turbulence for it!
     
  19. tochatihu

    tochatihu Senior Member

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    I collect these for notable N Atl hurricanes

    TROPICAL STORM FLORENCE

    Named as wind snakes. Florence is particularly slithery.
     
  20. tochatihu

    tochatihu Senior Member

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