2017 Pacific typhoon seasonTheis an ongoing event in the annual cycle of tropical cyclone formation, in which tropical cyclones form in the western Pacific Ocean. The season runs throughout 2017, though most tropical cyclones typically develop between May and October. The season's first named storm, Muifa, developed on April 25. This season featured the latest occurrence of the first typhoon of the year since 1998 , with Noru reaching this intensity on July 23. The scope of this article is limited to the Pacific Ocean to the north of the equator between 100°E and the 180th meridian . Within the northwestern Pacific Ocean, there are two separate agencies that assign names to tropical cyclones which can often result in a cyclone having two names. The Japan Meteorological Agency (JMA) will name a tropical cyclone should it be judged to have 10-minute sustained wind speeds of at least 65 km/h (40 mph) anywhere in the basin. PAGASA assigns unofficial names to trop…