Keywords: JTWC wp2897.gif en Tropical cyclone warning graphic of Super Typhoon Joan 28W from the Joint Typhoon Warning Center 1997-10-13 http //www usno navy mil/NOOC/nmfc-ph/RSS/jtwc/warnings/wp2897 gif not stable Joint Typhoon Warning Center Custom license marker 2014 08 11 PD-USGov-Military-Navy Uploaded with UploadWizard Typhoon Joan 1997 Tropical cyclone forecast tracks |