11 1 SURFACE
22 2 STANDARD LEVEL
33 3 TROPOPAUSE LEVEL
44 4 MAXIMUM WIND LEVEL
55 5 SIGNIFICANT TEMPERATURE LEVEL
66 6 SIGNIFICANT HUMIDITY LEVEL
77 7 SIGNIFICANT WIND LEVEL
88 8 BEGINNING OF MISSING TEMPERATURE DATA
99 9 END OF MISSING TEMPERATURE DATA
1010 10 BEGINNING OF MISSING HUMIDITY DATA
1111 11 END OF MISSING HUMIDITY DATA
1212 12 BEGINNING OF MISSING WIND DATA
1313 13 END OF MISSING WIND DATA
14