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Sim Update 3 Beta (1.5.4.0) Release Notes - May 29, 2025

Featured Replies

54 minutes ago, Alvega said:

Wow, getting amazing thunderstorms now with live weather, with lots of lightning. Try KCRG now. Finally!

Still needs some work. KSFB is reporting thunderstorms, but nothing in the sim. But I tried CYWL, OPPS, KGAO, they all had thunderstorms as they should.

KMCO does

Edited by Tuskin38

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  • Wow, getting amazing thunderstorms now with live weather, with lots of lightning. Try KCRG now. Finally!

  • KERNEL32
    KERNEL32

    YES! They slipped that short line in the patch notes but WOW what a difference I'm seeing in the storms. One step at a time, I am very happy and impressed that they are finally making some updates to

  • I see lightning at KSFB, not over the airport but 5 or so miles away. Edit: Getting lots of turbulence inside the thunderstorm clouds too, this is awesome.

Got one, but it's very difficult to take the screenshot at the right time. Sometimes it's 3 of them at the same time, it's impressive.

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Alvega

CPU: AMD 7800X3D | COOLER: Cooler Master MasterLiquid 240L Core ARGB | GPU: RTX 4070 TI Super 16GB OC | Mobo: ASUS TUF GAMING X670E-PLUS WIFI |
RAM: 32 GB Corsair Vengeance RGB DDR5 6000MHz PC5-48000 2x16GB CL36 | SSDs: WD Black SN770 2TB NVMe SSD (WIN11), WD Black SN850X SSD 2 TB M.2 2280 PCIe Gen4 NVMe (MSFS), Crucial MX500 2TB (Other stuff) | CASE: Forgeon Arcanite ARGB Mesh Tower ATX White | Power Supply: Forgeon Bolt PSU 850W 80+ Gold Full Modular White 

22 minutes ago, Tuskin38 said:

Still needs some work. KSFB is reporting thunderstorms, but nothing in the sim. But I tried CYWL, OPPS, KGAO, they all had thunderstorms as they should.

KMCO does

I see lightning at KSFB, not over the airport but 5 or so miles away.

Edit: Getting lots of turbulence inside the thunderstorm clouds too, this is awesome.

Edited by Alvega

Alvega

CPU: AMD 7800X3D | COOLER: Cooler Master MasterLiquid 240L Core ARGB | GPU: RTX 4070 TI Super 16GB OC | Mobo: ASUS TUF GAMING X670E-PLUS WIFI |
RAM: 32 GB Corsair Vengeance RGB DDR5 6000MHz PC5-48000 2x16GB CL36 | SSDs: WD Black SN770 2TB NVMe SSD (WIN11), WD Black SN850X SSD 2 TB M.2 2280 PCIe Gen4 NVMe (MSFS), Crucial MX500 2TB (Other stuff) | CASE: Forgeon Arcanite ARGB Mesh Tower ATX White | Power Supply: Forgeon Bolt PSU 850W 80+ Gold Full Modular White 

45 minutes ago, Alvega said:

Got one, but it's very difficult to take the screenshot at the right time. Sometimes it's 3 of them at the same time, it's impressive.

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Nice

 

Have anything showing the storm from further away? 

Ron Hamilton

 

"95% is half the truth, but most of it is lies, but if you read half of what is written, you'll be okay." __ Honey Boo Boo's Mom

2 hours ago, Tuskin38 said:

“Improved thunderstorm prediction”

I hope this means we’ll actually see thunderstorms where they should be

EFB. Mirror of Galadriel. Weather Forecast.

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5800X3D, RTX4070, 600 Watt, one or two 1440p 32" screens, 64 GB RAM, 4 TB  PCle 3 NVMe, Warthog throttle, VKB NXT EVO stick, Honeycomb Alpha yoke, CH quad, 3 Logitech panels, 2 StreamDecks, Desktop Aviator Trim Panel. Crystal Light VR.

 

I swear they tuned the regular clouds in SU3, I don't remember them being this solid?

 

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Edited by Georgleboui

32 minutes ago, Georgleboui said:

I swear they tuned the regular clouds in SU3, I don't remember them being this solid?

If so, I'm thinking it's more the case of better live weather data processing rather than improvements to the clouds rendering engine itself? The engine is definitely capable of stellar clouds as can be seen with manual weather config.

 

Edited by lwt1971

Len
1980s: Sublogic FS II on C64 ---> 1990s: Flight Unlimited I/II, MSFS 95/98 ---> 2000s/2010s: FS/X, P3D, XP ---> 2020+: MSFS
Current system: i9 13900K, RTX 4090, 64GB DDR5 4800 RAM, 4TB NVMe SSD

13 minutes ago, lwt1971 said:

If so, I'm thinking it's more the case of better live weather data processing rather than improvements to the clouds rendering engine itself? 

Lately I've noticed the effect of changing 'live weather' back say, 5 or 6 hours, is now instant rather than the several minutes it could take previously. 

13 hours ago, Tuskin38 said:

“Improved thunderstorm prediction”

I hope this means we’ll actually see thunderstorms where they should be

I hope it doesn’t go overboard in the opposite direction. For a time in MSFS 2020, back a couple of years ago  there was lightning everywhere, even from small fair weather cumulus clouds. There were so many complaints about it that they scaled lightning way back so it was almost non-existent.

It appeared they were using the model parameter CAPE (Convective Available Potential Energy) to “predict” lightning. Although a high CAPE value can indicate an increased potential for thunderstorms to form, it does not by itself indicate that thunderstorms exist. CAPE will be high when there is high surface temperature combined with high humidity, but you can have high CAPE with perfectly clear skies.

Jim Barrett

Licensed Airframe & Powerplant Mechanic, Avionics, Electrical & Air Data Systems Specialist. Qualified on: Falcon 900, CRJ-200, Dornier 328-100, Hawker 850XP and 1000, Lear 35, 45, 55 and 60, Gulfstream IV and 550, Embraer 135, Beech Premiere and 400A, MD-80.

Well, for me this last version is unplayable - still the same xBox login error I believe I had never experienced before, although I read lot's of threads about it and know about the various tricks that can be used.

When I start FS 2024 it doesn't even start the update because it fails to sync with the xBox servers, yet, the App starts normaly, and I can even try to start the game from there...

Well... it's always good to have other flightsims to play when this stuff happens with MSFS, more often that it would be acceptable, although, I must confess, I myself can't complain...

Flying gliders since 1980

Flightsimming since 1992

AMD Ryzen 5600x, 32GB RAM, GPU Nvidia RTX 3060 Ti 8 GB, 1 TB and 500 GB nvme2 SSD drives, HP 27" 60Hz LED monitor @ 1920x1080, T16000, Hotas from old X52 Pro, Saitek Combat Rudder Pro (2010 model)

16 minutes ago, JRBarrett said:

I hope it doesn’t go overboard in the opposite direction. For a time in MSFS 2020, back a couple of years ago  there was lightning everywhere, even from small fair weather cumulus clouds. There were so many complaints about it that they scaled lightning way back so it was almost non-existent.

It appeared they were using the model parameter CAPE (Convective Available Potential Energy) to “predict” lightning. Although a high CAPE value can indicate an increased potential for thunderstorms to form, it does not by itself indicate that thunderstorms exist. CAPE will be high when there is high surface temperature combined with high humidity, but you can have high CAPE with perfectly clear skies.

With access to so many data sources, I believe Meteoblue too unless they stopped using it (?), they could simply access Real Time Lightning Maps for the whole World... (i.e.: https://www.lightningmaps.org/ , and others...)

Edited by jcomm

Flying gliders since 1980

Flightsimming since 1992

AMD Ryzen 5600x, 32GB RAM, GPU Nvidia RTX 3060 Ti 8 GB, 1 TB and 500 GB nvme2 SSD drives, HP 27" 60Hz LED monitor @ 1920x1080, T16000, Hotas from old X52 Pro, Saitek Combat Rudder Pro (2010 model)

1 hour ago, JRBarrett said:
14 hours ago, Tuskin38 said:

 

I hope it doesn’t go overboard in the opposite direction.

Based on the testing I did last night, no, that doesn't seem to be the case. I was only able to find lightening by using a real world lightening tracker then going to an airport nearby. People might complain that the storms themselves are too intense lol. I was seeing many strikes per minute. Probably normal for Florida so I'm not sure. I did like the fact that you also see strikes near the horizon. In 2020 it seemed to only happen very close to your position.

5800X3D. 32 GB RAM. 1TB SATA SSD. 3TB HDD. RX  9070XT.

3 hours ago, lwt1971 said:

If so, I'm thinking it's more the case of better live weather data processing rather than improvements to the clouds rendering engine itself? The engine is definitely capable of stellar clouds as can be seen with manual weather config.

 

I hope so.  Live weather clouds have been waaaay too transparent.  It's really my biggest annoyance with their cloud generation.  Even in real life, sometimes the thinnest cloud layer is totally opaque.  In MSFS they model as the thinner the layer, the more transparent it is.  Gah!

I actually was on su3 beta but had to revert to su2 - I had constant CTDs (and yes I added my event viewer info at their forums).

My Liveries | FAA ZMP | PPL ASEL |
| Windows 11 | MSI Z690 Tomahawk | 12700K 4.7GHz | MSI RTX 4080 | 64GB 6000 MHz DDR5 | 500GB Samsung 860 Evo SSD | 2x 2TB Samsung 970 Evo M.2 | EVGA 850W Gold | Corsair 5000X | HP G2 (VR) / LG 27" 1440p |

 

 

1 hour ago, jcomm said:

With access to so many data sources, I believe Meteoblue too unless they stopped using it (?), they could simply access Real Time Lightning Maps for the whole World... (i.e.: https://www.lightningmaps.org/ , and others...)

Lighningmaps.org is powered by the Blitzortung network, which is a crowdsourced free network of privately hosted detectors operated by weather hobbyists. I myself hosted a Blitzortung detector at my home for several years. Those who participate bear the costs of the required hardware and internet connection out of pocket. Access to the network is free, but it not intended for commercial use.

For that reason, I doubt that Microsoft or Meteoblue could or would use Blitzortung data in a commercial software application like MSFS. 

The two leading providers of commercial lightning detection services are Vaisala, who operate the NLDN network that covers the continental US, and EarthNetworks which has worldwide coverage. I have no doubt that MeteoBlue has access to both systems. The problem is that r/t lightning data is extremely expensive. The price MB would pay for access would depend on the number of clients they resell the data to. Whether MB included r/t lightning data in LiveWeather or Asobo contracted directly with Vaisala or EarthNetworks, the cost would be enormous because of the size of the MSFS user base.

MeteoBlue would have to recover that cost by greatly increasing whatever fee they currently charge MS/Asobo for LiveWeather.

If there was a MSFS weather API that allowed external developers to inject lightning data into the sim, then they could easily leverage Blitzortung data for that purpose, but unfortunately, no such API exists.

Jim Barrett

Licensed Airframe & Powerplant Mechanic, Avionics, Electrical & Air Data Systems Specialist. Qualified on: Falcon 900, CRJ-200, Dornier 328-100, Hawker 850XP and 1000, Lear 35, 45, 55 and 60, Gulfstream IV and 550, Embraer 135, Beech Premiere and 400A, MD-80.

1 hour ago, Krakin said:

Based on the testing I did last night, no, that doesn't seem to be the case. I was only able to find lightening by using a real world lightening tracker then going to an airport nearby. People might complain that the storms themselves are too intense lol. I was seeing many strikes per minute. Probably normal for Florida so I'm not sure. I did like the fact that you also see strikes near the horizon. In 2020 it seemed to only happen very close to your position.

That’s good to know. Perhaps they are only creating lightning if area METARS definitely indicate thunderstorms exist. 

As I detailed in a post right above, the ideal solution would be to use one of the commercial lightning detection services to put r/t lightning into the sim where it is actually occurring. I don’t think there is a cost effective way that Asobo could do that, but perhaps they have worked something out with MeteoBlue. The real test would be if there is accurately-placed lightning out over the ocean far from land and any METAR reporting stations.,

Edited by JRBarrett

Jim Barrett

Licensed Airframe & Powerplant Mechanic, Avionics, Electrical & Air Data Systems Specialist. Qualified on: Falcon 900, CRJ-200, Dornier 328-100, Hawker 850XP and 1000, Lear 35, 45, 55 and 60, Gulfstream IV and 550, Embraer 135, Beech Premiere and 400A, MD-80.

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