<prompt> I-Joint Typhoon Warning Center i-JTWC yaba nobunzima obukhulu ekubikezeleni ngisho nasekulinganiseni amandla kaJohn. UJohn waba buthakathaka kakhulu ngemuva kokungena eNtshonalanga North Pacific, futhi, ngaphambi kokuba kulinganiswe kamuva, kwakhishwa izeluleko ezine ezilandelanayo ezamemezela uJohn njengokudangala kwe-tropical.  <response>: ENyakatho-Ntshonalanga yePacific 