On August 30, 2019, a
tropical disturbance formed approximately east-northeast of
Kwajalein in the
Marshall Islands, and was marked as
Invest 90W by the
Joint Typhoon Warning Center (JTWC). A broad
overcast obscured the system's circulation whilst thunderstorms or
convection developed to the northwest of the system. The disturbance continued to stockpile deep convection over very warm
sea surface temperatures of and low
vertical wind shear, conditions which are conducive for further
tropical cyclogenesis. By September 1, the JTWC announced a
Tropical Cyclone Formation Alert as the system began to develop
rainbands extending to the north. The system was designated Tropical Depression 14W by the JTWC at 18:00 UTC on that same day. The
Japan Meteorological Agency (JMA) later recognize the system as a tropical depression early on September 2. As the depression passed just southwest of
Wake Island, the JTWC estimated that the system had intensified into a tropical storm at 18:00 UTC, Later on September 5, the circulation moved underneath the convection. The TUTT cell to the northwest weakened on September 6, allowing poleward outflow to develop. At 06:00 UTC, Faxai attained
severe tropical storm status from the JMA. Faxai later intensified into a typhoon as according to
Dvorak estimates by the JTWC; the JMA did not upgrade the storm's status until 00:00 UTC of September 7. By 18:00 UTC, Faxai had attained its peak intensity; the JMA assessed 10-minute sustained winds at and the lowest
barometric pressure at , The subtropical ridge steered Faxai east-northeastward after having its northwestern periphery eroded by the
westerlies. In 18:00 UTC, Faxai made
landfall above the
Kantō Plain with 1-minute winds of . It fell below typhoon strength at 12:00 UTC. As the storm accelerated at by September 10, it embedded with the
baroclinic zone, commencing the transition into an
extratropical cyclone. In 18:00 UTC, the storm had transformed into a
cold-core low of gale-force, with wind force that extended east of
Misawa Air Base. It continued to shift east-northeastward, crossing the
International Date Line on September 11, before dissipating by 18:00 UTC of that day. == Preparations ==