Kawak, the storm, is nineteenth of the twenty, following Etz'nab' the flint: after the cut, release and cleansing. Kawak is the day of Chaak the rain god — lightning, thunder, downpour; for a people who lived by rain it was the most awaited and most feared force there was: too little and drought, too much and ruin. Its glyph is cloud and raindrops.
So Kawak's mechanism is build-up and release: closed in for a long time, then it comes without notice; fast to arrive, fast to pass, and the air is clean afterward. Its power is cleansing — one storm clears what was pressed down; its difficulty is control — often you don't know yourself when it's going to break.
Where you'll recognise it: feeling has a build-up phase and a break, you're fine soon after the break while the people beside you aren't yet, suppressive environments are unbearable, you have a knack for making things 'go through' and often frighten people while doing it. Running well, you're the one who brings freshness: opening what was closed, washing away the false; the ground after the rain is your gift. Stuck, you wound or you parch — the rain falls on the wrong person, or to keep it from falling you dam yourself dry. In the sequence Kawak is followed by Ajaw, the lord sun: after the rain, the light of noon and the completion of a round. Your next step isn't another storm. It's seeing, once it clears, what the rain actually washed out.