An area of disturbed weather formed within the Western Pacific monsoon trough during early September 1991.

Tracking northwest due to a weak subtropical ridge to its north, the depression strengthened into a tropical storm at 00:00 UTC on September 11.

Following the development of a poorly defined eye, Kinna was upgraded into a typhoon on September 12.

The cyclone turned north in response to a trough and passed through Okinawa as a minimal typhoon.

Typhoon Kinna rapidly transitioned into an extratropical low as it tracked along the northern coast of Honshu.

On September 8, synoptic data revealed that an area of low pressure was developing southwest of Guam.

An increase in organization prompted the JTWC to issue a Tropical Cyclone Formation Alert on the morning of September 10.

[1] At noon, both the Japan Meteorological Agency (JMA) and the JTWC upgraded the system into a tropical depression.

[2][nb 1] At the time, the depression was located approximately 460 km (285 mi) west-northwest of Guam.

[4] The depression initially tracked northwest due to a weak subtropical ridge to its north.

[1] At 00:00 UTC on September 11, the JTWC upgraded the depression into Tropical Storm Kinna,[5] with the JMA doing the same later that morning.

[2] The development of a poorly defined eye within a central dense overcast prompted the JTWC to upgrade Kinna into a typhoon on the morning of September 12,[1] although the JMA did not follow suit until 18:00 UTC.

In response, Typhoon Kinna turned northward toward the break in the ridge and tracked across Okinawa.

Kinna rapidly lost tropical characteristics as it tracked along the northern coast of Honshu.

[1] The JMA declared Kinna an extratropical cyclone early on September 14,[6] with the JTWC doing the same several hours later.

[6] Typhoon Kinna dropped heavy rainfall across much of the southern Japanese archipelago,[8] with many places across the southwestern portion of the country receiving almost 150 mm (6 in) of rain per hour.

[1] As a result of the JTWC's accurate long-range forecasts, preparations to limit the amount of damage on Okinawa were made well in advance of Kinna's approach.

Despite the strong winds, damage to United States military installations on Okinawa was minimal.

[27] A senior woman died after a tree collapsed while she was waiting for a bus stop in Hiroshima Prefecture while three others were also injured.

Strong winds caused 16,700 customers to lose power and 279 schools were closed in the prefecture.

[8] Heavy rains triggered two hundred thirteen landslides and flooding washed out nine bridges.