OZAZTEC,
What I had posted was correct for lightning.
Lightning codes in metars ....
- CG - Cloud-ground - Lightning occurring between cloud and ground.
- IC - In-cloud - Lightning which takes place within the cloud.
- CC - Cloud-cloud - Streaks of lightning reaching from one cloud to another.
- CA - Cloud-air - Streaks of lightning which pass from a cloud to the air, but do not strike the ground.
- OCNL - Occasional - Less than 1 flash per minute.
- FRQ - Frequent - About 1 to 6 flashes per minute.
- CONS - Continuous - More than 6 flashes per minute.
Just hope some saddist does not include this in PPL/CPL met.