Martian north pole
...that a hurricane-sized cyclonic storm over 1500 kilometres in diameter was spotted near the Martian north pole in 1999?
...that a hurricane-sized <a class="mw-redirect" href="./Cyclonic_storm" id="mwC7I" rel="mw:WikiLink" title="Cyclonic storm">cyclonic storm</a> over 1500 kilometres in diameter was spotted near the <b id="mwC7M"><a href="./Planum_Boreum" id="mwC7Q" rel="mw:WikiLink" title="Planum Boreum">Martian north pole</a></b> in <a href="./1999" id="mwC7U" rel="mw:WikiLink" title="1999">1999</a>?