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Carvers Gap

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  1. Sure. But...I would recommend staying out of the MA forum - LOL. Some of those cats(during the middle of snowstorm) start looking for the back edge of the snow. Some are great posters. The important thing to know is that there are good and bad Nino winters....the 90s have many of the Nino duds. As recent as 09-10 and 14-15, we have had decent ones. Will this be a 90s winter or a mid 2010s winter? We won't know until the end of February. There were many during the mid/late 90s who questioned whether winter would return. MBY yard does better during either a weak La Nina or weak El Nino w/ a negative QBO. I take either state, but they have to be weak. If moderate or strong, then it doesn't tend to work. Is this a strong El Nino? I haven't looked. If it is strong, that is a major East Coast warm signal. I thought it was moderate to weak. Seems like it is a crashing signal right now. Really, we have seen two of the last three winters produce incredible winters for the western 2/3 of the forum areas. Two of those storms were active GOM storm tracks pushing into cold which seeped slowly from the eastern Plains. We saw Mammoth(not our forum area) get near record snows last winter as well as many places in the West. I still have bushes in my yard which are struggling from last December's cold shot. It has been a while since we have had a snowless winter at TRI, but snowless winters are not without precedent(and they generally come in bunches). Those are the worst. I lived through multiple, snowless winters during the 90s. I think at one point, I hadn't seen measurable snow in like two or three years 96-97 to 98-99 were bad....way worse than anything of this past winter. The record for this winter hasn't been completely written yet. If I hadn't seen a wx model, I would say it is about on track for a normal snow winter. There has been snow in the Smokies, and light snow in the northern valleys. Warm start -> flips around mid-winter...that is the climatology even if it is a good winter.. For now I like this timeline: December 31-Jan10 - window for snow Jan 15-25 - hostile to snow Jan 28-Feb28 - good window for snow
  2. Here is the link to the MJO....It is a "choose your own adventure" mess. Remember those books? Click on each model run. https://www.cpc.ncep.noaa.gov/products/precip/CWlink/MJO/CLIVAR/clivar_wh.shtml Some refuse to go into warm phases. Some saunter and smell the roses as they progress through 4-6. Some hit the wall in 3 and won't progress! LOL. And their subsequent model runs reflect those almost exactly. Choose your own adventure. What do I think? Same as I have. Good pattern through the 10th(maybe even extended a few days). Then the pattern goes warm for 15-20 days. The last of January and all of February work out. Cosgrove has been really good this winter. I strongly recommend reading his update which should come out tonight.
  3. Complex for sure at this range. The complexity itself likely means it changes many times between now and the event as you all noted. I'll take a stab at it. Weak low pressure - almost a lee side Plateau low. Probably is a handoff to the Piedmont/Coast. Downsloping city right there. Air gets compressed, heats up, and we get warm air on the west side of the Apps...and less precip. Add in some warm nose, and you get that look. On the west side of the eastern valley...cold air gets pushed by counter clockwise flow up against the Plateau. The cold has nowhere to go. Th precip rises through the cold air, further cooling the air column, and you get rates induced snow. I have seen nearly that exact setup during ice storms. I have had 30 degrees at TRI, and 40 in JC/Unicoi.
  4. We have light snow falling as I type this. Though it hasn't accumulated, we have had snow falling off-and-on for almost 24 hours.... I think we are seeing models mishandle the MJO badly....they have been truly terrible of late in handling it. They completely whiffed on cold phases, and I do wonder about the validity of the potential 45 day tour through the warm phases. That may verify, but the warm water over phase 8 should produce rain near the dateline. I also think ensembles are all over the place in the placement of the NAO, and that has huge impacts right along the east coast. Also, it appears to me that modeling is breaking down the Nino far too quickly. The cold stretching from Calgary to Nashville is nearly a textbook Nina signal - that I don't buy(the cold I do...just that it doesn't extend to the coast). If that is the configuration, that cold should go to Savannah, Georgia, and not stop at the Apps. But the big message is the Pacific is likely to be less favorable, and we need the NAO. I don't see overwhelming SER signatures, but I do see an east coast ridge near the coast. To me those are different features (the EC ridge and the SER). As for November, that rule hasn't worked IMBY of late...it for sure normally has some skill, but during the past few Nina winters....it rarely worked. The colder Novembers still had warm DJF averages if I remember correctly for my back yard. It did work for middle and west TN. I do think that when North America cools down during fall, it raises chances of a better winter. The bigger issue was drought during fall - that is a big "tell" in regards to where cold likes to go - it doesn't like heading to dry areas. But you all in west and middle areas, you can't say that you weren't warned over the summer. Nino winter storm tracks favor eastern areas. Next winter, you all "should" be back on deck. Not counting this winter, two of your last three winters have featured significant snow and ice events for middle and west TN - banner winters. And who knows, this winter could still break your way.
  5. LR discussion(brief)....extended ensembles are most definitely sensing the crawling MJO(in warm phases) after mid Jan. We need a counter(block) to that where the NAO doesn't hook into an eastern ridge. We need the trough to slide under that block and hold on. If not, going to be very difficult to get winter to return with much meaningful time left on the clock. That is not a winter cancel post(for after Jan 15th), but more like a special weather advisory with the potential for a watch to be issued at a later date.
  6. Hit a heavy sleet/snow shower on the way home from JC. Thankfully the roads were good. The intensity of that wouldn't have taken long to snarl things
  7. If this storm for the 4th is still there tomorrow evening or even Sunday morning, probably time to post a thread. The ICON has it. The 18z GFS has it w/ a slight jog SE(which is where we want it). I mean really, I might be interested enough to stay up and watch models at 0z. It looks that good. The Euro pushed it similar to the GFS trend at 18z...so edit, it looks cautiously decent.
  8. Again, I think we are good to the 10th in terms of temps. The roads diverge after that. The NAO might be one of the most difficult features for modeling to predict. Models will often miss it completely, over-estimate its intensity, or put AN heights in the wrong spot. What happens after the 10th is very likely going to be dependent on the NAO. I suspect that MJO forecasts are a trainwreck right now. MJO forecasts completely missed the turn into the colder phases. So for the MJO, I am not sure what I am seeing is reality at all. Now, I fully expect some ugliness to show its head as we aren't going to dodge warm phases all winter. It's the South, we aren't staying warm indefinitely during most winters. We need the Atlantic. But honestly, if what the GEFS and GEPS are showing at 12z is correct...we might want a warm-up for a bit.
  9. Pretty wild pattern, and hopefully will be more interesting than last Jan/Feb was for us. I have no idea if that actually happens, but ensembles have been honking for some time about cold around the 12th. Lots of plates getting juggled right now with modeling trying sort out the MJO and potential HL blocking and the STJ being active.
  10. The 12z GFS is going to release the Arctic hounds after the NAO/SER hook ridge slides off at +300.
  11. And I mean stalls that system....wow. To clarify, I am referencing the 12z GFS...27 hours around Hatteras. CMC has the same system but a slider. So, two to track.
  12. LOL. Fortunately, it is just ahead of our system. If it gets over the top, no bueno. The next system after it is a mixed bag but perfect track...and then it stalls over Hatteras. That run is still going. Even though snow maps won't be as pretty for that, we take that look ALL DAY LONG.
  13. Looks like the CMC and GFS at 12z are not going to be content with just one system inside of 200h.
  14. FYI, I am going to keep my discussion about the light snow event for today and tomorrow in the December thread just so we can find it later....And for the storm threat next week, I would recommend posting that here. That will also keep the two discussions separate.
  15. SWS posted or TRI, portions of the Plateau, SW VA: Special Weather Statement National Weather Service Morristown TN 834 AM EST Fri Dec 29 2023 NCZ060-061-TNZ012>017-035-042-044-046-081-082-102-VAZ001-002-005- 006-008-292100- Cherokee-Clay-Scott TN-Campbell-Claiborne-Hancock-Hawkins- Sullivan-Morgan-Northwest Greene-Washington TN-Northwest Carter- Sequatchie-Bledsoe-East Polk-Lee-Wise-Scott VA-Russell- Washington VA- Including the cities of Andrews, Marble, Topton, Hiawasse Dam, Murphy, Unaka, Violet, Shooting Creek, Brasstown, Hayesville, Tusquitee, Big South Fork National, Oneida, Smokey Junction, Elgin, Huntsville, Norma, Slick Rock, Fincastle, La Follette, Elk Valley, Jellico, White Oak, Caryville, Royal Blue, Lone Mountain, Sandlick, Springdale, Arthur, Harrogate-Shawanee, Clairfield, Howard Quarter, Evanston, Sneedville, Treadway, Kyles Ford, Mooresburg, Kingsport, Bristol TN, South Holston Dam, Pine Orchard, High Point, Petros, Greeneville, Johnson City, Elizabethton, Cagle, Dunlap, Cartwright, Lone Oak, Old Cumberland, Palio, Melvine, Mount Crest, Pikeville, Brayton, Big Frog Mountain, Ducktown, Turtletown, Rose Hill, Big Stone Gap, Norton, Wise, Coeburn, Appalachia, Pardee, Hiltons, Hansonville, Lebanon, Dye, Castlewood, Honaker, Rosedale, Benhams, Bristol VA, and Abingdon 834 AM EST Fri Dec 29 2023 /734 AM CST Fri Dec 29 2023/ ...Light Snow Showers Today Through Saturday... A slow moving winter weather system will bring light snow showers to the Cumberland Plateau, southwest Virginia, southwest North Carolina, and northeast Tennessee today through Saturday. The snow may mix with rain at lower elevations during the warmer hours of the afternoon. Snow accumulations for most areas are expected to be only around a dusting and limited to grassy or elevated surfaces, mainly for locations above 1500 feet elevation. Mountains and ridge tops above 2500 feet elevation may receive up to one inch of snow accumulation. Relatively warm road temperatures will melt any snow for all but the highest elevation roads. Anyone driving on these mountain roads, especially those with a northward facing slope that receive limited sunlight, should be prepared for possible slick spots.
  16. Winter Wx Advisories now posted for the spine of the Apps...
  17. Yep, true. It is not a bad look. I don't like the NW trend of late, so 12z will be important in that regard I think. Tough to resist a good Euro clown map FWIW. LOL.
  18. 0z Euro control run from overnight. Most of this is Jan 4th-7th....storm is trending a bit close on operationals for my book, but fun run. I think we need to score early during January.
  19. Winter Weather Advisories have been posted for portions of the Plateau. URGENT - WINTER WEATHER MESSAGE National Weather Service Nashville TN 205 AM CST Fri Dec 29 2023 TNZ011-032>034-065-066-078>080-292100- /O.NEW.KOHX.WW.Y.0005.231230T0000Z-231230T1200Z/ Pickett-Putnam-Overton-Fentress-White-Cumberland-Warren-Grundy- Van Buren- Including the cities of Byrdstown, Cookeville, Livingston, Jamestown, Allardt, Sparta, Crossville, McMinnville, Altamont, Coalmont, and Spencer 205 AM CST Fri Dec 29 2023 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM CST THIS EVENING TO 6 AM CST SATURDAY... * WHAT...Snow expected. Total snow accumulations of one inch with locally higher elevations up to two inches possible. * WHERE...Portions of Middle Tennessee. * WHEN...From 6 PM CST this evening to 6 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
  20. I do think we are probably going to need to track the system on Jan 4th. The 6z GFS looked like a decent past for eastern areas. That is in addition to a good Euro run at 0z
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