On a recent flight from UAFM to ELLX I had to do battle with severe turbulence. There was thunderstorms and lightning throughout the flight and severe turbulence at flight levels above 360 of various duration. I climbed to FL400 but the severe turbulence, thunderstorms and lightning did not recede.Was I flying though supercell clouds?Thanks,

Hi,Could be or is it that you have Extend Thunderstorms On? That could add to the height of the storms and possibly cause rain even above the cloud tops.Hope this helps,Jimhttp://www.hifisim.com/Active Sky V6 Development TeamActive Sky V6 Proud SupporterHiFi Beta TeamRadar Contact Supporter

>Hi,>>Could be or is it that you have Extend Thunderstorms On? That>could add to the height of the storms and possibly cause rain>even above the cloud tops.>>Hope this helps,>Jim>>http://www.hifisim.com/>Active Sky V6 Development Team>Active Sky V6 Proud Supporter>HiFi Beta Team>Radar Contact SupporterI have extend thunderstorms checked. Why do the thunderstorms extend to such heights? Also, when should extend thunderstorms be enabled and what does the option Force Thunderstorms with CB accomplish?Thanks,

Considering that on average the maximum height for clouds associated with thunderstorms is in the 40,000 to 45,000 feet range, from what you are saying you could easily have still been in an appropriately modelled storm system. Some real world systems have accurately been recorded up to 67,000 feet!

>Considering that on average the maximum height for clouds>associated with thunderstorms is in the 40,000 to 45,000 feet>range, from what you are saying you could easily have still>been in an appropriately modelled storm system. Some real>world systems have accurately been recorded up to 67,000>feet!How many nautical miles could such a system cover?

Hi,1. That is what this option does.2. Mostly in European areas.Hope this helps,Jimhttp://www.hifisim.com/Active Sky V6 Development TeamActive Sky V6 Proud SupporterHiFi Beta TeamRadar Contact Supporter

>>How many nautical miles could such a system cover?>Just to give you an idea of the potential scales, a single thudercell may be about 5-10 miles across. A multicell thunderstorm may be 10-15 miles across i.e. one where two or three cells merge. A supercell storm (like the ones seen in the southern Great Plains of the US) can be 75 miles across.Now when you start to have lines of thunderstorms i.e. a squall line, that could range from one to several hundred miles in length. Big thunderstorm clusters i.e. ones which do not form in a line but in a more circular/elliptical pattern, can cause thunderstorms over thousands of square miles.As thunderstorms are one of the most dangerous forms of weather for aircraft to fly in, with the potential power to cause structural failure, you can understand why you should do your best to stay away from them.

As thunderstorms are one of the most dangerous forms of weather for aircraft to fly in, with the potential power to cause structural failure, you can understand why you should do your best to stay away from them. Hit the nail on the head with that one...