nrgjeff

Torandoes after June 1. Yes they used to happen even in the South. Recent years we cannot hardly buy action after May 15. This year it went later into May with that southern stream south of the AN heights North. Plains actually had a June season this year too. But the last several years the season either ended early or moved north quickly. Anyway it's July. Our next chance of anything more than downbursts would probably be hybrid tropical remnants. Jax our posts would flow fine without a quote.. except it's a new page!

4th of July front is a couple days early this year, but yes it seems almost obligatory recently. Could be hot again on the 4th though. While temps will be above normal Friday through early next week, the humidify will not be what it was last week. I call it hot but not a bad heat wave. Starting around July 10 temps may settle to seasonable (hot but doable). PNA and GWO are friendly to the Southeast. Two paths are offered. CFS is weak heights Great Lakes, but Texas ridge could pulse into the Mid-South at times. Euro is AN heights North which can sometimes ooze South. Either pattern is friendly for less sustained heat here, perhaps even normal temps.

Yeah @Matthew70 more flooding is a verified trend. Makes sense with greater average Theta-E in the Atmo warmer and with more water vapor. Guess the rest of this discussion is over in climate wars, lol! Climate Change in the General thread section. I remember Alaska had a hot week. That's why social media is not great for breaking weather. Love seeing week old warnings. Even phones give week old stories in notifications. Like yeah, I already know I missed the Northern Lights last week! Anyway let's talk July. We get more t-storms through the weekend into Tuesday when a weak Fropa is forecast. Per usual in July the one day of nice high press evolves into hot high press. Might be hot again starting around the 4th of July, but not as nuts as this week. Indeed, another hot spell (trying to avoid heat wave language) is forecast around the July 4-6 weekend into the following week. Atmo appears to be working off this heat wave still, with a lingering ridge sloshing around Texas and the Mid-South early next week. If all goes well the rest of July looks closer to seasonable. Highs around 90 instead of into the 90s would feel great now. Most teleconnections and GWO / GLAMM etc want to trend to heat North and West with normal Southeast. Euro weeklies does less Great Lakes ridgy which would better ensure reasonable temps here. CFS connects 'em which leaves us open to heat spikes. We've had years before that got hot early and then went near normal. 2012 comes to mind as one that truly went normal later in summer, vs lingering slight AN. We'll hope for the 2012 version.

Alaska does not have any Heat Advisory. NWS website does not show any heat products in effect up there. Just a flood for snow-melt near Fairbanks. High temps 70s inland 60s coast, lots of rain forecast. The sun can shine all day, but it's at a low angle for many of those morning hours and evening hours. Then it still goes to dusk no sun below the Circle. From the wrong high temps to the sensational sun quip, the social media post is detached from reality. Meanwhile looks like our heat will ease up East later this week with t-showers. West gets to suffer more. Then showers and t-storms cover more ground this weekend. Models have a minor fropa next week. More precip. While it drops temps only a few more degrees, it prevents any upswing. Hopefully the previous wet not too hot trend flexes and the current heat wave is just one of a couple surges this summer. Just say no to prolonged heat.

Chattanooga got it Saturday! Several thousand power outages were reported, something like 12K+ I estimate about 50 mph gusts at my location. Other parts of the city, instruments measured 60-70 mph. Saturday in Chattanooga and surrounding areas was a classic bow echo.

Mid-range models are hinting at Friday Hoosier Alley. Wrong Region? Nah, ours is the best region and it's close, ha! Also unruly outflow boundaries south of progged could push that closer to our Mid-South, though probably not anything rotating. Better shear is Hoosier Alley. SPC hints at it in their 4-8 day text but I agree it's a bit early for a 15% valid Friday. I just gotta talk weather. Ventured into the off-topic toilet bowl this morning. SOS!

Yes this weather is unusually comfortable for the beginning of June now. Too bad we're smoked out. While social media argues about the +/-Bz and Aurora Sunday night, we can just go to bed early. No chance with the smoke anyway. So, enjoy the mild temps and low RH.

Given the PDO is erratic, their study may be valid. Who knows if the Atlantic will ever cool off? Scientific consensus across all Journals is evolving. Or, we lack understanding to model the causation. Either way, the historical record may be useful. What's North American 2m temperature do with different states of the Atlantic and Pacific (and combos)? Instead of treating them as predictable oscillators, just take the Ocean temps at face value during this or the upcoming season. Both negative is going to be a cold possibly snowy winter for many. Both positive is going to be grill out and drink for many. If I was going to pick on oscillator to quit, I'd punt the QBO. It's rate of change could be useful, but its steady state has not been useful since George Bush was president.

Soon we are due to go negative AMO. Keep in mind soon is measured in years. Here is a smoothed chart from an energy climate page. Yes, some energy companies acknowledge it. We better, if our demand forecasts are going to be worth anything. Then the PDO has been a little flaky. It faked out cool phase a few times since 2000. Will it be able to hold? Perhaps the warmer background makes it harder to stick. So, I'm very curious how the AMO goes in the coming decade. Both negative could be epic winters!

I took a little Sunday drive to South Pittsburg, Tenn. No it's not far. South Pittsburg shelfies! Separately thank you to all Veterans to who serve(d). Especially we remember those who are fallen for our freedom.

SPC is talking outflow boundary isolated tornadoes both Saturday and Sunday. The Saturday boundary and outlook is south of most of us, as expected with a morning through midday MCS. Sunday is below. Smaller morning MCS is forecast, and it could break up and allow redevelopment Sunday afternoon. Monday could be similar. While it's 3 days in a row it's Marginal-Slight, so not a huge deal. Still I find it quite interesting so late in the season. Sunday is below, updated Friday afternoon.

Unfortunately lots of scattered but significant damage is reported in North Alamba. James Spann posted. Also saw text reports from EMs. Sad deal more like an April event. Haven't heard much from the Nashville 'burbs. Meanwhile sups split Chattanooga so we lucked out here. I was unable to truly chase on Tuesday due to work requirements. However during a lull between the Cherokee, AL / Pickwick Reservoir tornado and evening trouble I was able to get out locally. A severe warned cell (actually the Cherokee cell hours later) tracked from Monteagle, to Dunlap, to Soddy Daisy all Tennessee. I-24 is a no-fly zone for me at rush hour, so no Monteagle, but I was able to track it from Dunlap to Soddy just north of Chattanooga. It was between 6-7 pm EDT before the Madison, AL and Huntsville stuff got really ugly. Here are my low-lights. While the first is arguably structure out of the spotter's guide, less crisp but good for East Tenn... the rest is scuddy crap. Oh well! At least I got out of the house. So while the Cherokee cell stopped producing tornadoes, it retained supercell characteristics for several hours. I believe it was on the intersection of the outflow boundary and a prefrontal trough. Evening cells were associated more with the main surface trough - enhanced by the same outflow boundary.

And just like that.. Mississippi, Alabama and Tennessee boundary ahead of the Delta front is back. 00/06Z too much midday rain was forecast, keeping it stable. Now most progs have the morning rain dissipating, leaving a cooking boundary. Satellite shows very little cloud cover in its wake. Just bake. 10:45 CDT and the RRFS later, not that it'll really verify that bullish. Just remember Southern weather forecasting is like a box of chocolates.

Reading between the lines, the Hail outlook tells a lot. True supercells are only going to be out by the Delta. The pre-frontal trough farther east now looks like it'll be a little less volatile. Much of the severe farther east may end up bows and line segments. They can produce tornadoes, but yeah 45% wind seems to be the right issue on which to focus.

Same forecaster Bentley issued the early Day 2 today and early Day 3 yesterday. Bentley went from 'a little veered for tornadoes' to possible strong tornadoes. In between (Day 3 update) Leitman gradually moved that bar. Agency wide trend is steady, but the same forecaster trend is really useful to read between the lines. Should be just enough turning with height, especially given the instability forecast. Local low-level shear will be enhanced along the lifting boundary into Kentucky. Then Tennessee will have the main synoptic boundary and likely a pre-frontal convergence zone. Low levels might be slightly veered; however, mid-level vector crosses those boundaries at a slightly greater angle than the west-east boundary farther north. WF is in Kentucky. Prefrontal trough will move from West to Middle Ky/Tenn. Synoptic front will start in Mo/Arkansas and then cross the Mississippi River. Most models have storms on all 3 boundaries. Update 17:30Z: They expanded the wind ENH east and dropped 45% wind (still ENH not hatched). Tornado is also nudged east, but not far compared to wind. 06Z Chart below is still my most favored area(s). Enhanced risk (early Day 2) probabilities are 30% wind and 10% tornado both lined up at (06Z version).