Thanks for your answers.
-We have to departure within 1 hour of issue. We are in cockpit...slot, passangers on board, etc..
-I understand that we have visibility above the minimums (CAT IIIA) along the RWYs for Take-off and also for landing, havenīt we? No Flex for Take-off, and we can see more than 3 consecutive lights along the RWY centerline.
-The trend in METAR is for a period of 2 hours, (which means that in a metar threre is a forecast, isnīt it) TEMPO 350 mts
If we need an ALTERNATE, What is the use/meaning of TEMPO and visibility along the RWYs for?
Regards.