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What is the normal fallback for local weather service failure? Divert to an airport with working service? Proceed, using the "nearest working" information?

How much does air pressure vary over a region, and how quickly does it change?

by gosub1003 hours ago|

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I think it would be "fly vfr" but the main issue there is the wind direction, not the altimeter setting. In daytime you can read the wind sock while airborne but not possible at night.

by rbanffy9 hours ago|

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Would they take off if they knew GPS would be jammed midway through the flight?

Had they known they wouldn't be able to rely on GPS, all that back and forth with ATC would not be needed, and they'd already have a plan B and a plan C for navigating.

It's unfortunately all slices of swiss cheese aligned perfectly, but I'd still blame the military for poking extra holes on the GPS slice.

by gpm6 hours ago|

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> Would they take off if

medevac flight - there was probably some urgency.

by SoftTalker5 hours ago|

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Maybe. Urgency should not trump safety. A delay in transport is not worse than a dead patient, dead medics and flight crew, and loss of an aircraft.

And I am happy to be corrected but as I understand it, in the rural west more medical transport than you might think is by air. Distances are large, and population is sparse. You can cover more area with the same number of medics using a few airplanes instead of ground ambulances. So not all air ambulance service is critically urgent, unlike what we are used to in more populated areas.