Cessna 150 pilots planning to overfly Minneapolis-St Paul International (MSP) should get this one no problem. Here's an undecoded FD for 30,000 feet over MSP: 314352. Using your official Alan Turing FAA Enigma Decoder Ring (not included), what is the forecast temperature aloft?


52 degrees Celsius


52 degrees Fahrenheit


-52 degrees Celsius


-52 degrees Fahrenheit

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