EA: CEILING_AND_VISIBILITY_OK
Status:
STD 2005/06/07
Code:
219
Concept definition:
An indication that
CAVOK
conditions prevail; ceiling and visibility OK. The indication is TRUE if:
(1) <<
VISIBILITY_DISTANCE
>> is 10 kilometres or more;
(2) there are no <
CLOUD
>s below 1,5 kilometres or below the highest minimum sector altitude, whichever is greater; and
(3) there are no cumulonimbus <
CLOUD
>s, <
PRECIPITATION
>, <
THUNDERSTORM
>s, shallow <
FOG
>, or low drifting <
SNOW_GROUND_COVER
> present.
Attribute value type:
BOOLEAN
Reference type:
PR
Reference:
[
WMO306
, V1.1, Part A, 15.10]
Supplemental references:
Group membership:
ATMOSPHERE
LIGHTING_AND_VISIBILITY
Send mail to
webmaster
with questions or comments about this web site.
