Meteorologist, father of 9, NC State alum, co-founder of @RacecastWx, 2019 Dirty Dawg Champion, Skip Barber Racing School graduate, Shellback.
East Tennessee
Joined September 2012
- Tweets11K
- Following1K
- Followers1K
- Likes6.5K
Doug Schneider retweeted
Here's a scan-by-scan breakdown of the thunderstorm cell that N722BD flew into. We've contoured the 30 dBZ surface, which signifies where moderate precipitation was present.
The thunderstorm cell grew to 48,300 feet by 12:56 p.m., meaning that, at 12:48 p.m. when the plane flew through, it was still rapidly growing vertically. 15,000 feet of growth in under 20 minutes is a VERY intense updraft.
Now what about icing? It's true that the ambient temperature OUTSIDE the storm was around minus-45 degrees Fahrenheit. That's generally too cold for icing, which requires supercooled water droplets – i.e. water droplets that remain a liquid at temperatures below freezing. Water sometimes is slow to freeze UNLESS it has something to freeze onto – like a cold surface (a plane). At minus-45, moisture would have already frozen into ice crystals, i.e. snowflakes, which aren't really dangerous to aviation.
HOWEVER, the rapid growth of this thunderstorm cell 1.) carried LOTS of heat upwards, bending temperature surfaces and probably making the core of the thunderstorm cell 15 to 20+ degrees warmer. That warmth was probably amplified by the latent heat release of water droplets freezing, as my colleague Roger Edwards adroitly pointed out, and 2.) the swift updraft probably transported large, tropical raindrops upwards so quickly that some liquid remained even at altitude.
A study in the journal "Nature" found that deep convective (thunderstorm) clouds regularly have supercooled water droplets down to minis-38 degrees, and it's probable that, at 35,000 feet, the temperatures inside this cloud were warmer.
Therefore, while this wouldn't ordinarily be an "obvious" icing case, the forensic meteorology suggests icing as a probable contributing factor or cause. The NTSB will continue to investigate.
Doug Schneider retweeted
FRIDAY CONTRAILS: The sky is full of long-lasting contrails this morning — and the 7 AM weather balloon from the NWS in Calera shows exactly why.
A contrail is a condensation trail: jet exhaust full of water vapor, frozen instantly into a ribbon of ice crystals by air 35 to 60 degrees below zero. Dry air up there, and the trail vanishes in a minute. Saturated air, and the crystals can't evaporate — the trail lasts for hours, spreads out, and becomes high clouds.
On this morning's Birmingham sounding, the middle levels are dry — but at jet flight levels the temperature and dewpoint lines sit right on top of each other: saturated air, seven miles up, ahead of our weekend showers. Every jet today is writing on a sky that can't erase it. The crisscrosses are just crossing air routes.
Nothing is being “sprayed” — just water vapor, bitter cold, and a saturated sky. Same physics as your breath on a cold morning.
Doug Schneider retweeted
Snow Signal is now live for 105 CWA offices! 121.7 million rows of data analyzed. More to come soon! Snow.wall.cloud
Doug Schneider retweeted
Long before internet, the US Weather Bureau placed kiosks across the country to disseminate weather information.
Today, only one kiosk remains, and it's in Knoxville at the corner of Clinch and Market Streets.
More details about the weather kiosk - vlab.noaa.gov/web/nws-herita…
Doug Schneider retweeted
I know everyone thinks their school is cursed, but I swear NC State sports truly is cursed. They absolutely, positively cannot have nice things.
Doug Schneider retweeted
Year of the Miller A Nor’Easter?
This map produced by Dr Wall is based on a rolling average of 24 runs of the CFS v2. The implication from the CFS here is for over 200% above normal snowfall for much of Pennsylvania.
Further south in the Appalachians that percentage goes way higher as the averages are significantly lower.
If you’re paying attention, we now have 2 major Seasonal Models screaming the same signal… the Appalachians are in for an Epic snow season.
#winteriscoming
#wxtwitter #wxX
Doug Schneider retweeted
Great fireworks show @VIRNow @KerriganSmith1! Nature helped make it even better.
Doug Schneider retweeted
It’s wild to watch the truth about Fauci and Covid come to light, and the public are just kind of like “yeah get on with it”.
The lies and corruption were so obvious in real-time, that the disclosure phase feels lackluster.
It also doesn’t help that the Left-wing MSM are completely uninterested in reporting on all this, because that would mean that they would have to admit that they were wrong and complicit in these crimes against humanity, so everything is being transmitted via social media.
(The revolution will not be televised)
It’s just so surreal for the truth to come out, that covid was man-made, masks/distancing was all made-up nonsense, the vaccines were not safe and effective, etc., and there’s not even a peep of outrage from the outrage machine. They are more concerned about “trans rights” in the WNBA, than they are about the fact that the government made bioweapon that “got out” and killed millions of people, and then conspired with the media to lie about it and cover it up…
It just proves that all public “outrage” is manufactured, and the sheep are only mad when instructed to be.
I bet @GratefulWeather will like this!
The best setup in the Fan Zone at @NashvilleSuperS #Indycar weekend was @javahouse. The free tasty drinks in the hot weather were much appreciated, and we went there many times! The Vanilla Latte was my favorite.
Doug Schneider retweeted
So, in Soccer, if someone just brushes up against a player, they fly backwards like a shotgun hit them, then scream and cry, while rolling around on the floor like there is an earthquake.
Meanwhile, in American sports, a guy gets hit in the balls, ruptures a testicle... gets up... keeps playing, gets a base hit and then waits until the game is over to go to the hospital and have surgery.
Do you understand why Soccer never really caught on here?
nitter.cf/TonyRav/status/2079689…
Doug Schneider retweeted
This is exactly what happened in 1974 -- we have tried permanent daylight saving time before, and the House repealed it after a few months by a vote of 383-16 because it was widely hated. But some people refuse to learn history. joshbarro.com/p/this-week-in…
Doug Schneider retweeted
America already made daylight saving time permanent once. In December 1973, 79% of Americans supported it and Nixon signed it into law. By February 1974, eight weeks into the experiment, support had collapsed to 42%. The policy never changed. Winter arrived.
Sunrise in Washington DC came at 8:27am. Kids left for school in total darkness, carrying flashlights and wearing reflective tape. When Congress moved to repeal, members cited the deaths of eight Florida schoolchildren in the first weeks of the change.
The energy case collapsed too. The whole point was the oil embargo, and the Department of Transportation concluded the fuel savings were too small to matter. Ten months after signing it, Congress repealed it and Ford put the country back on standard time.
There's a mechanism that makes this cycle repeat: permanent DST is only ever voted on when the sun is up. Polls run in the abstract, votes happen in warm months, and the benefit, a free hour of evening light, is easy to imagine year-round. The cost is concentrated in about 10 weeks of dark winter mornings and only becomes real after implementation. So the policy polls beautifully right up until January.
Today's vote happened in July. The 1974 law passed in December, right before the exact winter that killed it. If this clears the Senate, the first real test arrives in January 2027, when sunrise in Indianapolis comes after 9am.
Sleep researchers have watched this loop for 50 years, which is why the American Academy of Sleep Medicine, the AMA, and the National Sleep Foundation all back the opposite reform, permanent standard time. Congress just picked the one version of clock reform America has already tried, hated, and repealed.
I'm convinced the bump in the graph is showing the contact with the Portuguese player, not the Croatian player, and that the video/image is not perfectly synced with the graph.
Doug Schneider retweeted
A word about the so-called snicko graph that “proved” croatia striker matanovic touched the ball.
Darren Cann (referee decisions commentator on the BBC and, unfortunately for him, one of the least convincing men ever to see a microphone) said he was “100% certain” there was a touch that caused pasalic to be offside.
He based that certainty on “snicko” technology as this proved the touch.
This is what referee and VAR used to rule out the goal.
But even if you think snicko is a good idea (I don’t) there’s a massive problem with the snicko graph.
IT’S DOESN’T LINE UP WITH THE PICTURES!
Snicko shows one spike and we’re asked to believe that was the matanovic touch.
But there are 4 or 5 touches on the ball in a few seconds (the cross - matanovic? - portugal defender veiga - croatia’s pasalic - then gvardiol scoring).
Snicko shows one?
They have to show a graph where all five touches (if there are five) are represented and where the graph spikes line up perfectly with the footage.
That would remove all doubt.
The way it was presented makes no sense and looks corrupt to the core.
If the ball barely touched the Croatian player, and produced that bump on the graph, then where is the bump on the graph a fraction of a second later when it obviously hits the Portuguese player? There should be two bumps. Is the graph perfectly timed with the video?
Thierry Henry blasts the referee and VAR after Croatia's last-minute goal against Portugal was ruled out:
🗣️ “I don't understand that decision at all. For me, the referee and VAR have completely ruined what should have been one of the greatest moments of this World Cup.
You cannot overturn a goal of that magnitude unless the evidence is absolutely clear. I've watched the replay several times, and I still don't see enough to confidently rule it out. If it's taking that long to draw lines and freeze frames, then it isn't obvious.
The referee has allowed technology to become the star of the match. Fans didn't come to watch VAR—they came to watch football. Croatia thought they had earned a dramatic equaliser through courage and determination, only for it to be taken away by a decision that will divide opinions for years.
This is exactly why people are losing faith in VAR. Instead of correcting obvious mistakes, it's making microscopic decisions that nobody in the stadium can understand. That's not what football is supposed to be.
I feel for the Croatian players because moments like this stay with you forever. You celebrate, you believe you've kept your World Cup dream alive, and then it's all erased in seconds. For me, the referee and VAR have got this completely wrong.”
