https://www.scientificamerican.com/article/why-the-2025-tornado-season-has-been-so-destructive/
~900 tornadoes have torn through more than 30 states so far this year, killing dozens…and costing billions.

#SupercellFormation requires…conditions that make the atmosphere unstable, and these start with warm, moist air at the surface and cold, dry air above. The instability comes from warmer air’s greater buoyancy, which makes it rise upward. And this mix needs yet another specific ingredient, #windshear “where winds change speed and direction as you go up with height…”

Cap (pileus) clouds over the cumulus in the mountains of southern New Mexico.

https://en.wikipedia.org/wiki/Pileus_(meteorology)

Note the Skew-T trace for this location. Winds are fairly light in the convective zone, but above that the winds increase. (But wind direction does not change.)

Humidity hits a maximum just above the convective layer, which is where the cap clouds form.

https://en.wikipedia.org/wiki/Skew-T_log-P_diagram

#NewMexico #NMwx #Cumulus #Instability #WindShear #Glider #Soaring

INITIAL SHOCK III

La Sotterenea, Saturday, July 5 at 02:00 PM EDT

Scream & Writhe and Disaster Sources are pleased to announce Initial Shock III. The third edition of the Montreal noise fest will take place July 5-6 at La Sotterenea and P’tit Ours.

Full lineup: AMARIOR, ANNE-F JACQUES, APOLOGIST, DEATH KNEEL, EUNUCH GOD, GENERIC FATIGUE, GIRL CIRCLES, GRKZGL, KAHRABA, K.M. TOEPFER, LYNDSIE ALGUIRE, MASS MARRIAGE, MATRIARCH, MOTHER MARY, QUIVERING/NAUSIA, S.D., SHADOW PATTERN, TASKMASTER, WIDDERSHINS, and WINDSHEAR

Individual showcase lineups and artist bios to follow.

https://montreal.askapunk.net/event/initial-shock-iii

WFAA 75th Anniversary Special 📺

75 years of news in Dallas-Fort Worth.

https://www.youtube.com/watch?v=2NQtqwkyNM0

#Broadcasting #WFAA #Journalism #Texas #JFK #Zapruder #TheBeatles #MartyHaag #DeltaCrash #WindShear #ByronHarris #BertShipp #BrettShipp #ScottPelley #SpaceShuttleColumbia #BabyJessica #Ebola #BigTex #OpalLee #Juneteenth #TroyDungan #PeteDelkus #VerneLundquist #DaleHansen #ChipMoody #MrPeppermint #BowlingForDollars #ABC #JoeTrahan #GeorgeRiba #Dallas #MichaelSam #Texas #MarkCuban #DallasCowboys

Supercars will hire two new technical experts as part of its extensive off-season parity testing plan, including wind tunnel testing of a Triple Eight Camaro and Dick Johnson Racing Mustang in the States. https://bit.ly/3QaAqr3

#Supercars #Camaro #Mustang #Windshear

Between #KesslerEffect and #WindShear, we'll be grounded sooner than later...

Severe #Turbulence Will Increase Up To Three Times In The Next Decades

by Linnea Ahlgren, July 1, 2022

The wind shear of the jet streams will continue to increase as temperatures rise.

#ClimateChange #Transportation

https://simpleflying.com/severe-turbulence-increase-three-times-next-decades/

What I'm getting about United 1722, without reading the pilots' or the FAA's reports, are three possibilities:

1. Sudden shift of the direction and speed of the wind (aka windshear) caused the aircraft to stall,

2. A downdraft due to very heavy cold rain was encountered, exceeding the plane's vertical climb performance, or

3. A microburst was encountered, combining windshear and downdrafts, making for a deadly combination of 1 & 2.

In any case, it sounds like the pilots managed to pull off an incredible low-level save. I bet they were shaking after that one. I hope to read the final report someday.

#aviation #avgeek #unitedairlines #united1722 #aviationwx #windshear #pullup

https://theaircurrent.com/aviation-safety/united-maui-dive-ua1722-close-call/