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Holston_River_Rambler

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Everything posted by Holston_River_Rambler

  1. Holston_River_Rambler
    I'll try to kick this off with an image from England in the 1300s: I'm hoping that's Boreas blowing in some cold winds under a storm cloud in the top right corner.
  2. Holston_River_Rambler
    I'll take a stab at a January thread.
  3. Holston_River_Rambler
    If lapse rates are driving some of it I would think the PM would be better, but if the sun doesn’t come out tomorrow I don’t know if they will be as high? if it were me I would try to wait for radar trends but you may not have that option.
  4. Holston_River_Rambler
    Stole this from the MA (for the system the Euro depicted at 12z): TRI's in the same risk level as some of the lowest elevations of the Sierras!!
  5. Holston_River_Rambler
    Latest MRX on the system tomorrow and Saturday: On Friday night, upper-level closed low is forecast to be across KY with the upper-level trough axis shifting eastward across the Southern Appalachians by Saturday morning. Mid-level lapse rates will be steep across the region with a strong 150 kt upper jet contributing to some weak ascent across our area. Dynamics are weak, though, and the main contributor to precipitation will be weak orographic lift and weak CSI to support localized heavier showers. The temperature profile will be favorable for snow across the higher elevations of the plateau and mountains, but don`t expect much. A mix of rain showers and snow flurries is expected across the valley. There is so little moisture that significant snow accumulations are not forecast, and in fact, even the highest elevations of the mountains likely will not see more than 1 to 2 inches. Portions of the plateau will see a dusting to one-half inch with locally higher totals. Valley locations will not see accumulation with the exception of a localized brief dusting possible on some grassy surfaces. This system on Friday/Saturday is very weak. New term for me there, "Conditional Symmetric Instability (CSI)"
  6. Holston_River_Rambler
    I was actually just thinking that you might try a drive to the edge of the plateau: Really nice overlook there if nothing else, off of US HWY 70. That should also put your through the best regions on the NWS Nashville map. Here is an idea of that view at the destination pin (Cumberland Plateau scenic overlook) you'll be looking toward Cookeville. Looks like some should precip be moving in by late tomorrow PM, but i would just watch radar trends for that just to be safe
  7. Holston_River_Rambler
    Yeah that's the weird part of those runs. The only thing I can think of is that the higher resolution is doing something with RH from the still almost entirely unfrozen Great Lakes. The 18z NAM 3k has pretty good RH values up through 750mb and even in a few select locations in west and southern middle TN up to 500mb:
  8. Holston_River_Rambler
    Doesn't get more TN Valley than that track
  9. Holston_River_Rambler
    I was about to post about the NAM 3k. It's a lot more widespread than other models at least to my eye.
  10. Holston_River_Rambler
    I agree 100%.
  11. Holston_River_Rambler
    I'll take anything to get some cold back in Canada: EPS: GEFS: Here is the run-to-run change on the GEPS 850mb temps, don't know how useful one run to run change is, but I decided to try weatherbell, so we can have those gifs now:
  12. Holston_River_Rambler
    Sorry @Carvers Gap what I was writing might seem really weird in light of what you asked before I finished typing it, lol.
  13. Holston_River_Rambler
    Been trying to think if I have anything to add or build on what @Carvers Gap said yesterday, and I just can't add much. Kind of burnt out on models right now. There is just a ton of volatility at range. Yeah that's normal, but there just seems to be some like hemispheric pattern swings out in fantasy land. To me it seems normal to have storms come and go, but I feel like models are decent at the general pattern. IDK, maybe it is the SSW projected is now flopping and that is screwing with things? FWIW there is still a minor split, but not at the levels most people look at and show on social media (i.e. 10 mb) I'll also add that recent long range runs are trying to make a second run at a warming. Definitely on the table as much as anything is, but still in fantasy land. Further down in the atmosphere we've gone from having these hugely anomalous HL blocks the second week of Jan. (NAO, I'm looking at you) To this look at the end of the 6z GFS: And look, I at least think I get it. These are OP runs at basically max range, of course they're going to be wrong and flip flop. But that is like a 360 degree flip. Maybe I should lay off the OP juice and stick to the low gravity ensembles, but, IDK, I wonder if there is some sort of pattern shake up in the works around the second week of January. I don't necessarily men locally, but big picture, N. Hemisphere type stuff. WRT the MJO, I'm kind of hoping toward dying in phase 3 right now. Although models kept trying to COD it when it was in 4 and 5 earlier in the month, it did eventually pitter out in 6. TBH, I'm still not sure exactly what the MJO is. Is it a planetary scale process that involves the earth's rotation and Coriolis effect at the equator that is enhanced or suppressed based on SSTs and ongoing convection? I mean I think I kind of get why tropical convection matters, but I guess I just wish there was a way to see where the MJO was based purely on satellites.
  14. Holston_River_Rambler
    @Silas Lang Here are NWS Nashville's thoughts:
  15. Holston_River_Rambler
    If you decide the plateau route, and if that is the track the upper low takes, Sewanee/ Monteagle might not be a bad spot.
  16. Holston_River_Rambler
    Yep, I was just trying to find a good precip projection for a gif. Might see my first real snowflakes. I don't count the 7 half melted flurries that could have been whirly doodles from a Tulip Poplar a week or so ago.
  17. Holston_River_Rambler
    One thing we do have working for us this time is ENSO. Certainly not saying a SSW couldn't mess up any pattern, but hopefully now that Nino is flexing we can keep the SPV stressed.
  18. Holston_River_Rambler
    I'm definitely with Carver's for waiting until Friday to decide. I was actually thinking about Sam's Gap this AM. It's interstate all the way, but just a bit too far for your time. GFS gives it a few inches Saturday afternoon and it puts you up to almost 4000 feet. If you decided to go that way, you could just about do a loop in the same return time and come back through Asheville and see how things looked on the Foothills parkway near Cosby.
  19. Holston_River_Rambler
    GOES derived lightning strikes, looks like a nice one over Spence Field and Thunderhead mt. I guess that seals the deal for late this week/ weekend?
  20. Holston_River_Rambler
    @Silas Lang what is your time limit on the drive?
  21. Holston_River_Rambler
    Merry Christmas all, Here is the 3D Vortex I mentioned from yesterday: Not much else to add but this 3D gif present.
  22. Holston_River_Rambler
    That upper low will be another good NAMing for someone over the next few days
  23. Holston_River_Rambler
    Shout out to @stadiumwave who posted this in the main forum El Nino thread. I hadn't even thought to check the mean yet. 6z GEFS mean has a split too: Also question for stadiumwave if you read this, which gif host do you sue to get the higher resolution gifs?
  24. Holston_River_Rambler
    First full SPV split I've seen in the long range this season on the 0z GFS Sadly the 6z wasn't as enthusiastic, but it is still way out there. GFS was trying to get to the above a couple times yesterday, but didn't quite make it. Here is the same evolution at 50 mb: Should be a fun 3D vortex tomorrow AM. It only runs the previous days 0z data to make that visual, so we won't have tonight's 0z for the 3D images until tomorrow.
  25. Holston_River_Rambler
    Overnight euro had John’s New Years storm.
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