Keywords: JTWC wp1813.gif en 5day forecast trackmap for Tropical Depression 18W 2013-09-18 http //www usno navy mil/NOOC/nmfc-ph/RSS/jtwc/warnings/wp1813 gif not stable Joint Typhoon Warning Center / Naval Research Laboratory PD-USGov-Military-Navy Tropical Depression 18W 2013 Tropical cyclone forecast tracks |