Random Increase in Speed

Device: iPhone 13
Operating system: IOS 15 i think

So I’m cruising at FL340 at mach .82 and suddenly im at .87. Any causes?

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This topic shouldn’t be in this category, however, the reason might be winds or bad weather in general.

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Yeah, sometimes the weather changes can be quite violent. A little freaky when you’re at high altitude with a small flight envelope.

Winds are at 22kt rn doesnt seem like the reason

A sudden decrease in temperature will result in higher IAS and a lower speed of sound, both of which will cause an increase in Mach.

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