Complex sentence: The depression moved northwestward and was upgraded to Tropical Storm 04W by the JTWC the next day on June 30, while the JMA named the storm Tropical Storm Ewiniar at around the same time.
Split into simpler sentences: The depression moved northwestward and was upgraded to Tropical Storm 04W by the JTWC on June 30. The JMA designated the storm Tropical Storm Ewiniar at around the same time.