https://phys.org/news/2018-07-suomi-npp-satellite-elongated-tropical.html > Animated enhanced infrared satellite imagery 10 hours later showed that Ampil was continuing to consolidate but still had an asymmetric cloud field. > At 11 a.m. EDT (1500 UTC) the Joint Typhoon Warning Center (JTWC) reported the center of Tropical Storm Ampil was located near latitude 19.6 degrees north and longitude 129.0 degrees east. That's about 429 nautical miles south of Kadena Air Base, Okinawa Island, Japan. Ampil was moving to the east. Maximum sustained winds were near 40 mph (35 knots/62 kph).