PPRuNe Forums - Meterology question

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Meterology question

Can someone please explain how to get this answer because i do not understand i do kno which is altitude, wind direction and wind speed and temperature but those correct figures are no the same. Every help is greatly appreciated.
https://cimg9.ibsrv.net/gimg/pprune....3e427cd01f.jpg
https://cimg0.ibsrv.net/gimg/pprune....2c0f210207.jpg

I believe you have to interpolate.

https://cimg4.ibsrv.net/gimg/pprune....07f78f0041.jpg
First find the right box which corresponds to the lat/long they have given. (In this case it's easy but you may also have to interpolate between boxes).

Numbers in the columns read from left to right:
Altitude, wind direction, wind speed, temperature. To find 3,500ft you need to interpolate between 2 and 5 (thousand feet).

In this case :
05(000ft) 230° 40kts +1°C
02(000ft) 220° 35kts +7°C

If you interpolate between 2000 and 5000 you'll see that 3500 is conveniently half way between the two, so you get:
225° 37.5kts +4°C then match the closest answer.

Hi,

Thank you. i figured it out yesterday.
Thanks for the reply.