Hagåtña, Guam
During August 2, the JMA started to monitor a tropical depression that had developed within a favourable environment for further development, about to the northeast of Hagåtña, Guam.&lt;ref name="STWA 02/08"&gt;&lt;/ref&gt; The system had a broad and weak low level circulation centre, which had atmospheric convection flaring around the system's outer edge. Over the next couple of days the system slowly moved north-eastwards, before it was classified as Tropical Storm 07W by the JTWC and named Omais by the JMA during August 4.