During the day on September 7, an Air Force reconnaissance flight estimated sustained winds around 40 mph.

At around the same time, MFR estimated peak ten-minute winds of 215 km/h (130 mph).

During this time, the storm temporarily attained typhoon status, having estimated winds of 120 km/h (75 mph).

At around the same time, the JTWC estimated winds of 270 km/h (165 mph ).

The JTWC estimated peak winds of 270 km/h (165 mph).

The sonar crew estimated fifteen-foot waves and forty-knot winds, unusual for the arctic summer.

Later that day, the agency estimated peak winds of 75 km/h (45 mph).

The JMA only estimated peak 10 minute winds of 110 km/h (70 mph), making it a severe tropical storm.

That day, the JMA estimated peak winds of 100 km/h (65 mph).

At around the same time, the JTWC estimated winds of about 220 km/h (140 mph ).