Winds aloft, is this supposed to be normal?

Are you using Developer Mode or made changes in it?

No

Have you disabled/removed all your mods and addons?

No

Brief description of the issue:

Winds aloft have been all over the place, I have not yet encountered this in any other simulator. Not with this intensity.

Provide Screenshot(s)/video(s) of the issue encountered:

Recorded short video: https://drive.google.com/file/d/1Oz1ixVXSPbMBuvpoL6uJKu_aHAfVle3H/view?usp=sharing

Provide time & date of the observed Weather issue

09/10/2022 (DD/MM/YYYY) 1530Z

Detailed steps to reproduce the issue encountered:

Just fly between UK and Norway. But I have encountered this when flying over Brazil and continental Europe. I thought it was a one of, but this is happening rather often.

PC specs and/or peripheral set up if relevant:

Not relevant

Build Version # when you first started experiencing this issue:

1.27.21.0


:loudspeaker: For anyone who wants to contribute on this issue, Click on the button below to use this template:

Do you have the same issue if you follow the OP’s steps to reproduce it?

Provide extra information to complete the original description of the issue:

If relevant, provide additional screenshots/video:

What altitudes?

In this occasion, FL350.

Now on descent to ENGM the plane had a huge blow with a strong wind change and pressure throwing me completely off the descent profile around FL200. Things are definetely smooth as I thought they would be with SU10.

Here’s a screenshot of winds aloft at FL340 over Tennessee moments ago… 85 kts @ 260…

Heading west at altitude you can get pretty strong headwinds, with variable headings as you descend. It all depends on what the weather is doing that day…

And turbulence is not that uncommon IRL? Clear air turbulence?

It can get pretty bumpy up there… :slight_smile:

737 has turb N1 in cruise page should set turbulence penetration speed. I have not checked if that works though.

Topic moved into Community Support.

Yes, it is common.

Yes it can.

But yet again, I’ve never seen it like this in any simulator in 12 years in this hobby. Call it in ActiveSky, X-Plane, xEnviro, FSReal Weather, you name it. Including FS own, I’ve never encountered a random crazy wind like this as I have the 3 times I’ve flown this week. Nothing being reported in a SIGMET or SIGWX. I was flying over the North Sea and the tropopause was at least 3000 ft above from observing the SIGWX.

Here is a copy of the windsaloft at the time.

Well, turbulence can occure even if it’s not reported IRL. Well, i just pretend it’s turbulence and pretend i’m a pilot that need to make procedure according to the weather that is happening in the sim. Like pilots need to IRL too. I have flown many times and i noticed turbulence. I bet that turbulence were unexpected too. If it were expected they would have turned on seatbelts signs before the turbulence happened.

It’s the unpredicted things about weather that makes it intersting to me. I like that this sim has unpredicted things in weather, First sim that has weather that is unpredicted.

Did you note the time of that change? I have those instant changes in pressure and winds at around 17:00Z i have noted. That i think is an issue though when next weather update comes. That should be a smooth transition.

Those up and down changes in winds only you showed in the video i think is turbulence. I had same up and down motions. I was flying between EKCH and ENGM today. It were smooth at the beginning then it started for some minutes and then it got smooth again.

I have done some digging around, inlcuding asking some pilots I know, and the behaviour is normal, not the wind, I’ve shown him the footage and he said that is not CAT, but the IRS trying to get the read. You just have to deal with it, so that’s what I will do.

With regards to the suden change, yes, I think it was around that time, it is not smooth. Some other time I got the wind suddenly changing in cruise from HW to TW bringing IAS close to stall, engines ramping up, then back to HW, IAS spikes up almost overspeed. This is the kind of annoying thing that keeps me getting back to X-Plane (besides loving that sim).

Direct quote from Robert Randazzo from PMDG on his latest announcement:

Another area upon which we are putting a lot of focus lately is pitch/roll/yaw/thrust channel stability and smoothness. In the the simulated environment in which the 737 lives in MSFS, there is a tremendous amount of atmospheric violence that the real airplane doesn’t often deal with. Since the F/D and the A/P control law are very dependent upon PIDs, the rate of change data being violently oscillatory is problematic from a mathematical point of view.

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