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Deweydog

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Posts posted by Deweydog

  1. 12 minutes ago, T-Town said:

    There’s a great documentary called After the Crash that talks about how they continued on and really produced some of their best stuff after Duane Allman was killed. Quite the rock and roll saga. Im a sucker for that stuff. 

    I’ve watched Rush Beyond the Lighted Stage more times than I’m willing to admit.

    • Like 2
  2. 9 minutes ago, Cascadia_Wx said:

    Mostly cloudy this morning and 54 after a low of 47. Looks like a marine layer snuck in this morning and is banked up against the south WA Cascade foothills. Overall the weather this weekend has turned out a lot better than forecast so far.

    Wanna meet at Seize the Bagel on Mill Plain??? Only here for a couple more weeks, J-Dog!

    • Like 1
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  3. 3 hours ago, Meatyorologist said:

    Buddy and I went on a walk to enjoy the catastrophe today. Saw some cumulus shrouding Mt. Rainier, lots of high clouds, sunny, mild weather.

    Him and I are both science nerds so we got to talking about adiabatic cooling and how it works... Neither of us really knew the exact answer, and none of the information we read online felt comprehensive or satisfying. After some shared thought my buddy tossed me a theory that I think makes the most sense. As he guessed, as a parcel rises, and the volume of that parcel increases, the fastest moving ("hottest") molecules in that parcel travel outwards towards the edge first, since they are faster. Those "hot" molecules, being the first of the parcel to make direct contact with the environent surrounding it, transfer their heat out via conduction. It's essentially a molecule sorting process, where the hottest molecules are most likely to conduct their thermal energy to the surroundings, since they are faster than the rest of the molecules, and fill in the expanding parcel first. As you can imagine, transferring heat out of the parcel via the warmest particales preferentially will cool off the parcel, and at a fixed, predictable rate, too.

    Any seasoned mets want to pitch in? Are we onto something or shooting blanks? Don't know where else to ask. Maybe Reid Wolcott knows.

    I always thought the adiabatic process was all about friction, at least in the weather world. Usually upslope vs. downslope and the excitement/relaxing of the molecules. Of course it’s just armchair stuff, my actual science knowledge is purely wannabe status.

    • Like 2
  4. 40 minutes ago, BLI snowman said:

    Speaking of seeing America, I visited the ghost town of Picher, OK on the back end of my eclipse trip. Really fascinating story there, with the lead/zinc mining deposits there creating an environmental catastrophe, and then sadly a devastating EF-4 tornado in 2008 pretty much finished them off. You can still see the giant chat piles from the road hanging over most of the former building sites.

     

    picher1.jpg

    picher2.jpg

    picher3.jpg

    No In and Out I’m guessing?

    • Popcorn 1
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  5. 6 minutes ago, Phil said:

    Looks like a simple probabilistic forecast. Which would certainly be low confidence in this case, but “impossible” is a stretch.

    In 2019 it was obvious early on that the 4CH would be suppressed with a flatter, more westerly upper level pattern in the PNW. That fire season was almost nonexistent as a result.

    In 2021 it was the opposite, when it was clear by April that the 4CH would a massive beast (lots of off-eq convection, very wide ITCZ/HC).

    ITCZ/HC FTW, IMO.

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