Upper winds and pressure inaccurate and erratic

[utd4life12]

I’m experiencing a lot lately in my time flying over Northern Europe with Live Weather , that when cruising up at higher altitudes, the upper winds are often inaccurate compared to what they should be. This can be both in speed and direction, where I’ve observed the wind direction being off by 100+ degrees.

I’ve also experienced where the weather seems to update in flight, and the winds become accurate again, sometimes they stay accurate and sometimes a few seconds later it reverts straight back. Also when this happens the pressure seems to change also as I usually either gain or lose a few hundred feet in altitude.

Has anyone else been experiencing this lately?

---

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:

[utd4life12]

Here is an example of a weather update, demonstrating the above.

[AviaturNov]

It is not only on the upper levels. Norther Germany had major storms according to MSFS while with 40 knots of wind, while real live internet METARs were talking about 7kn at most

[Sebihepp]

I also have a problem with winds aloft being very wrong. I know forecasts are not accurate but my charts show a jetstream over Europe from north to south with winds as strong as 100 knots at FL300.

In my flight I had winds from south to north with 20 to 40 knots - so extremely different. After flying half an hour the winds suddenly turned to be more accurate to the forecast.

Maybe the problem is in the blending from one forecast to another, timely? I started at 1700Z and the winds were off. My forecast was for 1800Z and the winds were suddenly accurate since 1730Z.

[FlakeyHawk4900]

Please tag your post with #pc and/or #xbox.
PC
Are you on Steam or Microsoft Store version?
Microsoft Store
Are you using Developer Mode or made changes in it?
no
Brief description of the issue:
In some area like north of france the altitude wind is incorrect
Provide Screenshot(s)/video(s) of the issue encountered:

Detail steps to reproduce the issue encountered:
Fly in altitude in north of france and and when past abeam from bordeaux to south the wind change suddenly
PC specs and/or peripheral set up of relevant:

Build Version # when you first started experiencing this issue:
SU 7

Fly from LFBZ to LFRS and you will see the wind altitude suddenly change in the south west of france altitude wind seems correct but just passing north of Bordeaux altitude wind change suddenly and it is not accurate at all !

[utd4life12]

Yes I’ve experienced this many times also, long before SU7. Upper winds suddenly shift

[JCC1953]

Same for me but only since SU7 and my A320 NEO can go in overspeed during these wind problems.

[JCC1953]

In this example MSFS wind is not in the good direction and in the next picture (without transition) the wind direction is correct according to NOAA winds aloft.

[Sebihepp]

For me the winds aloft were even worse while flying on FEB 15th from EDDN to LEPA via south of germany, switzerland, south-east of france and then the sea.

NOAA forecast showed 360/115kt in FL300. The wind I was getting was 160/40kt - I had to divert to LFMN because my fuel wasn’t enough to even reach LEPA - Even with fuel for alternate LEBL, 30 min reserve and 0.5 tons extra.

I would understand if winds are not correct, as forecasts don’t have a magical orb to see the future. But a difference of 160kt is just enormous and prevents me from doing fuel calculation…

[utd4life12]

Thank you using the Bug section, using templates provided will greatly help the team reproducing the issue and ease the process of fixing it.

Are you using Developer Mode or made changes in it?

No

Brief description of the issue:

Upper winds for a long time now are concistently incorrect and outdated. I encounter this every time I fly whether it be in Europe or the USA, the wind speed and direction and also the SAT are often incorrect and appear to be outdated. Sometimes we encounter the sudden change in wind speed (accompanied by a change in air pressure also resulting in the altitude often chaning by +/- 500ft as the correct winds get pulled in, but often they switch straight back to the wrong ones.

To be this is clearly a data issue within Live Weather and it’s about time this was given some proper attention by the developers. It impacts so much from fuel burn, to vatsim altitude disagrees and also overstressing the aircraft with the sudden changes.

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

Detailed steps to reproduce the issue encountered:

Fly and compare the wind speeds and directions to what they should be.

PC specs and/or peripheral set up if relevant:

Build Version # when you first started experiencing this issue:

This has been an issue for months, even over a year.

---

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:

[GaiideNinja]

I’ve been flying the TBM 930 around the world since the start of this year and I can’t say I agree. I use Windy.com and I get consistently proper results for my high-altitude flights and I also am able to use it to determine what runway I will be assigned for take off and landing or which one I will have to choose myself. I will admit the wind is generally off by a few degrees and a few knots I don’t think I would say it is always perfect but I also don’t see why it should be. The MSFS weather system is its own internal model that behaves based off real world data. Some variance should be expected, but it’s never been bad enough that it ruins or really even affects my flight plans in any way.

For example I just flew from Easter Island to Robinson Crusoe at FL295 to complete my journey across the South Pacific and these are the winds I encountered on my journey similar to what is depicted here on windy.com. Tail wind the whole way starting ~30kts and increasing to over 50 during in the flight. It was a nice push!

[utd4life12]

@GaiideNinja

The MSFS weather system is its own internal model that behaves based off real world data. Some variance should be expected, but it’s never been bad enough that it ruins or really even affects my flight plans in any way.

I agree, I’d always expect some variability compared to the hard figures that are on an OFP, that is what happens in real also. But I am frequently experiencing winds that are 90 degrees off and sometimes over 50 knots in difference compared to what it should be, whether comparing to the OFP or to Windy, there are often big discrepancies. Until the sudden shift of wind happens, and then it switches to the correct winds, sometimes it stays correct, other times it shifts straight back.

If you haven’t experienced these big discrepancies then that’s great but also just adds to the confusion as to whether this impacts everybody or not. There is another thread here relating to upper winds changing suddenly, so I know at least it impacts more people than just myself.

One thing I have noticed is that if you fly predominantly after 18:00z (19:00 UK time) they seem to be correct.

[utd4life12]

Today for an example, just look at the difference in speed and direction here when it switches:

The winds at 261/12 are what it should have been, within a couple of knots difference as you would expect. Then it switched back to the previous winds of 004/39, so not only more than double in the speed they should be, but now way off in direction also.

[GaiideNinja]

I forgot to concur with you on the “wind shear” that can happen every now and then. In a small plane like the TBM it’s quite violent and often scares me nearly out of my chair as I’m just chilling out and reading or something

[utd4life12]

Thank you for using the Bug section, using templates provided will greatly help the team reproducing the issue and ease the process of fixing it.

Are you using Developer Mode or made changes in it?

No

Have you disabled/removed all your mods and addons? If the issue still occurs with no mods and add-ons, please continue to report your issue. If not, please move this post to the User Support Hub.

Yes

Brief description of the issue:

Winds and temperature aloft with live weather are incorrect, the figures showing appear to be outdated by at least 24 hours. Please see example below of the expected winds and temp at point SUXAN vs actual in the sim, as can be seen temp, wind direction and speed are incorrect.

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

Provide coordinates (DevMode > Options > Display position)

Provide time & date of the observed Weather issue

02nd July 2024 1600 UTC

Detailed steps to reproduce the issue encountered:

Observe live weather winds and temps aloft vs expected.

PC specs and/or peripheral set up if relevant:

Build Version # when you first started experiencing this issue:

Been an issue since Alpha.

---

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:

[ConsularBuckle4]

There are always uncertainties in the forecasts used for planning. 36 degrees and 11 knots error is not excessive. Besides, your flight level is 350, FP says otherwise. Wind shear could have contributed to the difference you observed.

[utd4life12]

Yeah I understand that but the winds during this flight were way off, often by 90+ degrees and 20-30 knots. Comparing the GRIB data it seems it was injecting upper winds from around -12 hours.

These winds on the OFP were for cruise level FL350.

[CasualClick]

Personal Comments and Observations

Curiosity - where is the second screenshot coming from?

[utd4life12]

Simbrief OFP

[CasualClick]

Hm. Assuming they use the same sources as Navigraph, they pull from Rainviewer and NOAA.

It would be interesting to compare them to Meteoblue since that’s the API feed for Live WX.