Hiya all!
While reviewing for my interview next week, I realized that I had forgotten the pressure tendency units in the Remarks section of the METAR (US format). As usual is it written down somewhere, but it is hiding from me ...
It comes in the format 5appp, where 5 represents pressure tendency , (a) the change in pressure, and (ppp) the actual change (tenths of hPa) in the last 3 hours. My question is what exactly the numbers 0-9 in (a) represent.
7 7 7 7