{ "0":{ "0":"Clear", "1":"less than 6 tenths of sky covered by low thin clouds at height nn (reported cloud height)", "2":"less than 6 tenths of sky covered by low clouds at height nn (reported cloud height)", "3":"less than 6 tenths of sky covered by low thick clouds at height nn (reported cloud height)", "-":"No clouds visible due to obscuring phenomena" }, "J":{ " ":"less than 6 tenths covered by high thin clouds" }, "2":{ "2":"less than 6 tenths of clouds over less than 6 tenths clouds at height nn (reported cloud height)" }, "K":{ " ":"less than 6 tenths of high clouds", "2":"less than 6 tenths of high clouds, less than 6 tenths of lower clouds at height nn (reported cloud height)" }, "L":{ " ":"less than 6 tenths of high thick clouds" }, "4":{ " ":"at least 6 but less than 10 tenths covered by low thin clouds" }, "M":{ " ":"at least 6 but less than 10 tenths covered by high thin clouds" }, "5":{ " ":"at least 6 but less than 10 tenths covered by low clouds", "2":"6-9 tenths clouds over less than 6 tenths clouds at height nn (reported cloud height)", "5":"6-9 tenths clouds over less 6-9 tenths lower clouds" }, "N":{ " ":"at least 6 but less than 10 tenths covered by high clouds", "2":"6-9 tenths high clouds, less than 6 tenths lower clouds at height nn (reported cloud height)", "5":"6-9 tenths high clouds, 6-9 tenths lower clouds" }, "6":{ " ":"at least 6 but less than 10 tenths covered by low thick clouds" }, "O":{ " ":"at least 6 but less than 10 tenths covered by high thick clouds" }, "7":{ " ":"10 tenths covered by low thin clouds" }, "P":{ " ":"10 tenths covered by high thin clouds" }, "8":{ " ":"10 tenths covered by low clouds", "2":"10 tenths clouds over less than 6 tenths clouds at height nn (reported cloud height)", "5":"10 tenths clouds over 6-9 tenths lower clouds" }, "Q":{ " ":"10 tenths covered by high clouds", "2":"10 tenths high clouds, less than 6 tenths lower clouds at height nn (reported cloud height)", "5":"10 tenths high clouds, 6-9 tenths lower clouds" }, "9":{ " ":"10 tenths covered by low thick clouds" }, "R":{ " ":"10 tenths covered by high thick clouds" } }