Thereafter, increased wind shear took a toll on the typhoon, as it turned northward on September 11 in the general direction of Japan under the influence of a mid-latitude cyclone.

The origins of Typhoon Judy can be traced back from a highly active monsoon trough along the low-latitudes of the Western Pacific basin in the first week of September.

Later that day, the Joint Typhoon Warning Center (JTWC) issued a Tropical Cyclone Formation Alert (TCFA) on the second system.

[4][nb 2] Following an increase in organized thunderstorm activity near the center, the JTWC started issuing warnings on Tropical Depression 19 at 1600 UTC that day.

Based on this, both the JTWC and the JMA upgraded the depression into Tropical Storm Judy early the next day.

However, the ridge did not build, which enabled Judy to track northeastward under the influence of a tropical upper-tropospheric trough (TUTT) located to north of the cyclone.

[2] Meanwhile, the Philippine Atmospheric, Geophysical and Astronomical Services Administration also briefly monitored the storm and assigned it with the local name Susang.

The storm intensified slightly thereafter, and early the next day, the JMA estimated that Judy attained peak intensity of 150 km/h (90 mph) and a pressure of 950 mbar (28 inHg).

The next day, wind shear once again increased significantly; consequently, thunderstorm activity decreased along the southwest portion of Judy.

[4] At 0800 UTC on September 12, Judy moved onshore at Omezaki Point on Honshu,[2] while still producing hurricane-force winds.

[6] Several hours later, the agency noted that Judy had transitioned into an extratropical cyclone,[2] with the JMA following suit the next day.

[11] Nearby, the Kanda River overflowed their banks, flooding 8,000 dwellings,[12] including 2,000 in the Shinjuku entertainment district.

One person died and three others were lost when a boat with 10 anglers was capsized due to rough seas off the coast of Kobe.