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Old 17th Jan 2023, 08:35
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Kriekos
 
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What to compare minima (DH and RVR) with?

Hi everyone,

Assume you're planning a flight and you need to check whether the WX at the destination at ETA +/- 1hr is above minimum DH and minimum RVR.
1. Where do you look to see if WX is better than min DH? Do you look at the clouds reported in the TAF? If yes, which clouds bring the WX below DH?
2. Where do you look to see if WX is better than min RVR? I believe TAFs give visibility but not RVR (RVR is given in METARs but a METAR have a limited validity).

To conclude: I know the theory about operating and planning minima and appointing alternates, but I don't know how to actually check if the minima are met at the aerodrome.

Thanks in advance for the help!

Grtz
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