subtropical ridge
...that the subtropical ridge helps steer tropical cyclones?
...that the <b id="mwBsw"><a class="mw-redirect" href="./Subtropical_ridge" id="mwBs0" rel="mw:WikiLink" title="Subtropical ridge">subtropical ridge</a></b> helps steer <a href="./Tropical_cyclone" id="mwBs4" rel="mw:WikiLink" title="Tropical cyclone">tropical cyclones</a>?