Shallow fog (below eye-level) would also be really cool. It must be relatively easy to implement something like this. As soon as there is MIFG in the METAR, activate shallow fog.
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Actually all that preset and modifications, while may be good, but is merely a band-aid solution. What we should really ask for is all this coming through live weather and depicting actual METAR conditions just like I illustrated in screenshots on x-plane.
The problem with that is that not all METARs are the same. In the Czech Republic we donāt report ceilings above 5k feet unless they are TCu or Cb. I think thatās one of the reasons why Asobo went with live weather thatās not exactly live, instead itās simulated according to the latest NEMS numerical model outputs.
Using Meteoblue and its NEMS model to depict clouds and then use METARs for visibility and fog related present weather (MIFG, BCFG, VCFG, FG etc) could potentially work, however there are some limitations. Global numerical models with larger grid canāt see fogs properly unless they are horizontally extensive enough.
That would mean that the METAR would report something like 0200 FG VV001, the sim would show proper visibility but clouds would be non existent. That would look weird in my opinion.
Iām definitely very intrigued how theyāll manage this and Iām looking forward to it.
This should be world wide, 5000 ft or MSA whichever is higher. In other words CAVOK does NOT necessarily mean sky clear.
Exactly like you say. If itās CAVOK, it could easily be overcast with stratocumulus at 5500 ft and the sim would show clear skies.
It should be worldwide, however it isnāt. I know of many stations in the neighbouring states that report clouds even above 20k feet.
Look at Graz for example: LOWG 010950Z 35012KT 9999 FEW068 21/06 Q1023 NOSIG
I imagine then, that the best approach would be to have the weather engine use Meteoblue forecast data in the first instance and augment it with METAR data if available.
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Also, I think that this limitation pertains to civil airports only. Military airports and automated weather stations in the Czech Republic report ceilings above 5k feet. Big disparityā¦
We donāt want the sim to only look at METARs. What we have for clouds is great, just that we also need to have more accurate METAR based visibility depiction baked into the model. But then again, clouds come from forecast model and METARs is live information so it might get complicated but they need to figure it out since their weather model is not open to third party devs.
I absolutely agree with all of you 
Finally some official admission and assurance that itās being worked on (Twitch @1:54:00)
No timeframe though so most certainly it wonāt be there anytime soon.
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Donāt know if anyone noticed, but the ability to change visibility/RVR has been marked as āStartedā on the recent dev update.
Those are some really amazing news. I hope the visibility and RVR will be eventually introduced into live weather as well though.
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Yep, saw that. Although I would say it definitely has to be integrated into the live weather. Iām sure they must have read through the topic posts as well rather than just the title.
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Hi all, i canāt unsee that the weather engine has not some important features that other sims had since fs2004ā¦ what iām talking about?
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Change the in air visibility, how much visibility do you want? 9999-5000-2000? thatās so important, some of the community thinks that putting a cloud in the ground solves the problem but that would be called fog, i donāt want fog i want a reduced horizontal visibility that may be due to a lot of variables, high air stability, low intensity wind circulations, humidity and not directly due to clouds.
This is fundamental for both VFR (VMC) and IFR for simulating determinated procedures where are required specific RVR, ceilings etcā¦ -
the possibility to set 2 or more different weather since start for different aerodromes, this is important to simulate specific flight conditions.
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Yes iāve been asking for the same thing with your second question,but i donāt know if Asobo will do it as theyāve only confirmed that a visibility slider is in the works for custom weather.
it would be cool if Asobo tellās us more about this upcoming feature since itās been a while that in dev updates itās written STARTEDā¦ when itās coming? 2022? 2023? SU11?
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Hereās a quote from the devs a few months before release 2020, 2 years ago :
Still waiting for this featureā¦
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Soo actually in feedback snapshot is written STARTED (improved SU10), i made a question for their Q&A but they did not calculate it, i really think that they are not taking this topic seriously.
itās astonishing how in flight simulator visibility simulation is not prioritized over other stuffs,
the n.1 flight hazard that you learn in flight school is visibility, and here we canāt have it correctly simulated. great!
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The most absurd is that this was - very nicely - modelled in FSX.
16 years ago.
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Another bump for this, it is truly disappointing we can not simulate IMC conditions. I am currently doing some IFR training for the rating and MSFS is essentially near useless for this at the moment.
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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?
yes
Brief description of the issue:
0SM FG/FU Metar does add any haze. Clear visiblity
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09/13/2022 8:02am PST
Detailed steps to reproduce the issue encountered:
Load at Castlegar. current metar shows FU instead of FG.
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AMD 5800X3D / RTX 3080ti
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