Why can the following METAR not be abbreviated to CAVOK?
DLLO 121550Z 31018G30KT 9999 FEW060TCU BKN070 14/08 Q1016 TEMPO 4000 TS=
(Aerodrome elevation 1000 ft, MSA for sector 000-190° 5800 ft, for sector 190-360° 7300 ft.)
Accord to QB correct answer is:
Because the cloud base is below the highest minimum sector altitude.
I'm a bit lost with this one. As far as I understand you don't add the elevation to MSA as MSA is 'altitude' above sea level? If you do add the elevation then I understand how they get this answer.
Practically speaking, if the MSA is 5800ft MSL then I don't think I'd fly 200ft below TCU, so it is common sense at that.