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Everything posted by nrgjeff
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Count me in the weenie group. When that low passed to our south I was about to put a shoe through my TV. Next couple systems look weak and/or positive tilt. That's good to keep severe wx away from the already battered South. GFS and Euro both want to tee up Easter weekend, but it's Day 10. MJO / KWs. are still muddled with two separate areas going. North American modeling will probably be flaky.
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TVA has a great article on the rain this year, and compares to last year. Seems Nature's SOP is break a record, and then break it again the next year. 2020 1Q set a 3-month rainfall record. https://www.tva.com/Newsroom/Rain-Rain-Go-Away
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SPC goes with a tornado watch that gets to KATL and all of the southern 'burbs. While the LLJ is a little veered, it is bringing in a moist fetch. Also surface winds are really backed on that retreating boundary. Regarding that LLJ, I've noticed southern Georgia can produce while a little veered off. I think most of the Atlanta metro is OK, some morning rain and the atmo should not recover / destabilize enough to get nasty later. South Georgia could have a day though.
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Jonesboro tornado trolled all the Illinois and Iowa chasers. Thankfully nobody was killed, but news says some serious injuries. OK we get a break this week. Probably a good thing. Models saw the East trough last week, and it's in progress now. Next week could get active again. Convection is coming out of the Indian Ocean toward Indonesia (maritime sub-continent). Lead by the ECMWF all models are coming around to a West trough. Euro verbatim favors Plains/Midwest. Getting into April it could go north, south and/or both. I don't have any plan to chase anything beyond 2 hours. Dixie just isn't worth the drive, lol.
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Thursday night the stars were particularly vivid. I could almost discern the Milky Way from MBY but not quite near the city. Still the peaceful feeling out under the stars was incredible. Figure with reduced pollution in these times the star gazing will be excellent on clear nights.
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Gulf will also help severe season along. LOL the CFC flip flops on ENSO. Ahh, that spring predictability barrier.
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Synoptic WF appears to have made it as far north as I-80/88; however, outflow farther south in central Illinois is obvious on the surface chart (10am Central Time). I figure the rouge cells ahead advertised on some CAMs will go on that OFB. Given how sharp the WF is up north, I'd favor the OFB. Note I have a strong personal bias toward OFB. Still could be chaser's choice. I'm also not in the field today; so, with a virtual chase I can afford to take forecast risks. Still I have to like 1-2 cells east of where the OFB intersects the Pacific front / quasi-DL. Good luck, and be safe!
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Late summer drought (perhaps flash repeat) would not shock me. Risk of sooner, but depends on if SER is dirty or clean. Until then pretty wet, yuck!
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Hopefully the -NAO is a joke too. Might as well get on with spring. Let the SER give us some sun and Vitamin D! Long range I have to favor a persistent SER. TNI might get backwards for severe early / SER late spring. However, the broad forcing is already acting Nina. So after electric load goes on holiday, maybe utilities can make some money back this summer. HOT and HUMID - Dry heat is off the table after all this rain.
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Big changes since Sunday. Instead of Ohio River Valley jungle, we now have an outflow boundary in North Alabama and just south of KCHA. Still plenty of failure modes. A. Rain-out B. Veered off C. Capped (too little too late) D. Combo of 2-3 above E. Rather watch sports reruns Early season is prone to failures, which is of course good for the general public. That said I figure ENH is incoming. Obviously if something is close to KCHA I'll take a look. No chase greater than 2 hours though; so, I won't be visiting the chasable northwest Bama area today.
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We got throttled March 2012. I've nothing much on this week. Veered off trash. Only turning is in the Ohio River Valley jungle. Back to NCAA Basketball reruns!
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I expect Tuesday will get an Outlook on Saturday morning or soon after. Euro remained consistent if not stronger. LLJ is a touch veered, but not like the last two systems. It's fortunately not backed like Super Tuesday either. Upper level winds are a given. Low level theta E (temps/humidity) will be a question. Even with all those caveats, if the Euro holds, one has to think Tuesday gets a 15%.
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Be safe @Calderon and thank you for your service!
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A less smug tone is appreciated next time. Thank you. Holston you are a better person than me, lol!
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The Midwest can have it. Dixie had enough heartache for the season.
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stormchasing and the coronavirus
nrgjeff replied to Jim Marusak's topic in Weather Forecasting and Discussion
Judging by my Twitter feed on Friday, storm chasers are out as usual. They are being careful at gas stations and rest stops. Bringing their own paper towels, wipes and hand sanitizer. Air fare will be cheap to the Plains. Airlines are offering no change fees! Do you know what that means? You don't have to know the exact days when you book. Gasoline is cheap too. Seriously though, I'm not even thinking about travel until we see how this plays out for a few more weeks. Dixie local? No thanks as in any year. Critical Federal Agencies have plans, but I will defer to an NWS Met for more on that. NWS and TV Mets are very dedicated to saving lives in any circumstance. -
With an MD in the house you already know, he is perfectly safe to drive home solo (COVID-19 independent of the activity of driving). Bring paper towels with, for restrooms and door handles. Educated guess is Alabama is awaiting test kits. No policy/politics in here, but Bama has finally confirmed at least one as of this writing. Highest Middle Tenn confirmed is in affluent suburbs. Do they have their own test kits independent of the CDC? My guess the risk is equal both places (very low). That said... Informed people I know are practicing social distancing. Work recommends avoiding groups of 10+. I've heard sharply conflicting thoughts from the two MDs I know personally. However the tie was broken when Galen Medical released an article: This is No Snow Day. Galen says don't even let kids play with their friends much. Tough for solo kids w/o siblings. Keep having fun as a single nuclear family unit only. I was thinking, wow really! Galen and Church (online only now) both make the point. We do not act in fear. We act out of love and consideration for others. Elderly and vulnerable need us to collectively stay healthy in order to protect them (much as we can). Medical sector needs us to slow down this thing - spread out the cases - which we know are inevitable. Spread out over several months will be easier to treat than all at once. So we are keeping to ourselves, except to buy perishables. Couple weeks ago we took care of non-perishables for a while. We go out to jog and play soccer or shoot hoops. School is remote by video app. Work in shifts. Probably have several movie marathons and books in our immediate future. It's different, but we'll manage. Keep your faith. And hey, now we are all ready for severe weather season too!
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Link between COVID-19 and weather. Storm chasers enjoy cheap air fare to the Plains. No 14 hour drive! Oh wait, the actual storm chasing days. I forgot about that.
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In an ever changing World of uncertainty, the European weekly charts offer a dose of stability but not-so Southern Comfort... Warm and Wet! Go figure. In other news KU is ranked #1 with no March Madness. I guess hang the National Championship banner at Allen Field House.
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I got distracted watching stocks, lol! But yes, we have a severe weather problem in Tennessee tonight. So the models all have Missouri Boot Heel convection going into Kentucky. All clear? Hell no! Let's do some meteorology. First of all it's not moving northeast. It's moving due east. That'll anchor the boundary farther south than progged. Gee, that never happens. I am hoping the short-wave ejection will push the boundary to the TN/KY border. If not it's in danger of hanging up near I-40. Frankly breaks my heart to type this. Sometimes we science. Sometimes we pray. Anyway, the 850/925 mb charts look more veered than Super Tuesday. Do not expect a repeat. Still, just strong storms disrupt recovery. Psychological damage of just general thunderstorms can't be ignored. Shear will be worse up in Kentucky (or wherever the boundary settles out). Not Super Tuesday, but not a good night either.
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Please do. Your local utility will like you. Thoughts are my own, lol! If we can keep air fare low through next winter, I see some Rocky Mountain skiing in the forecast!
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Guess we can already go with another blowtorch winter 2020-21. Maybe the SER will be such a beast it keeps severe Midwest and Plains. Flash drought coming to a place near you.
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Yes @Calderon is absolutely correct! @PowellVolz that's not a TDS. That is lofted debris carried into the forward flank. Also a sign of a violent tornado. Sure enough OHX finds EF-4 damage. Though the lofted debris signature didn't last as long, it has similarities to the Kansas City tornado last May. Middle Tennessee tornado itself might have lasted longer than the KC one. Have to look back at all that. At any rate, this Tennessee tornado was historical.
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European weekly charts are ugly for severe wx the next few weeks. Great Lakes Ridge with Gulf Coast underbelly is replaced with more traditional East Coast ridge. +AO and -PNA spell more Dixie Alley trouble. I'm not rooting for this. Rather postpone to May Plains.
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Low CAPE high shear events happen. Wait! This was not exactly that... I'm watching KPAH get the hail treatment about 5pm Monday. Back of my mind I know it's westerly flow aloft over a boundary - but a little early in the season for that set-up. Text my buddy a boundary rider is going off on PAH, but don't think too much about it. Cell weakens, and I start gearing up for Big Monday college basketball on ESPN. Wake up Super Tuesday to Middle Tennessee super tragedy on the news. WTF? Going back to Monday afternoon shear was never in question. I've written here many times, look for westerly flow aloft instead of that SSW flow junk. Nearly 90 degrees of turning was noted. 850 was a little veered, but upstream was deep moisture - count it as backed in Dixie. 925 mb was straight south and both increased going overnight - all forecast ahead of time! Surface of course had the notorious boundary related SRH. CAPE and instability was more complicated. Steep mid-level lapse rates were in place, but low-level CAPE was close to zero. Forecast soundings had the latter improving; but, I'm such a skeptic of those. Normally early season other rain is falling, and it remains stable. Well no rain was falling south of the boundary. Surface chart in retrospect shows an unstable airmass advecting in unfettered. Sure enough it arrived at the boundary in Middle Tennessee. LLJ strengthened. Alas the 2% TOR area was under the gun. CAMs actually had robust storms, but not necessarily a boundary rider beast. Old fashioned meteorology could have provided a more obvious heads up before the evening news. However, credit some local TV Mets for sounding the alarm on the evening news. Still, it's tough to overcome a 1am long-track cyclical damaging tornado. Dixie Alley is just so awful. It's either busted chases, or much much worse. The human suffering down here is cruel. At least the Vols cheered up Tennessee. https://davieswx.blogspot.com/2020/03/march-3-2020-double-digit-death-toll.html excellent article from Davies.