https://phys.org/news/2018-07-nasa-tropical-depression-16w.html

The Joint Typhoon Warning Center noted "Infrared satellite imagery depicts a partially-exposed, broad low-level circulation center with deep convection displaced over the eastern semicircle due to moderate to strong (20 to 30 knots/23 to 34.5 mph/37 to 55.5 kph) west-southwesterly vertical wind shear.

On July 30 at 11 a.m. EDT (1500 UTC) Tropical Depression 16W was located near 29.0 degrees north latitude and 154.2 degrees east longitude. That's about 269 nautical miles north-northwest of Minami Tori Shima, Japan. 16W was moving to the north at 9 knots (10.3 mph/16.6 kph). Maximum sustained winds 25 knots (28.7 mph/46.3 kph).