PDC Weather Wall

September 2012
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Tropical Cyclone Activity Report – Pacific / Indian Oceans

Tropical cyclone Jelawat (18W) remains active…located approximately 190 NM southwest of Kadena AB, Okinawa, Japan (Weakening typhoon…sustained winds of 110 knots…gusts to 135 knots)

Tropical cyclone Ewiniar (19W) is active in the western Pacific….located approximately 270 NM south-southeast of Tokyo, Japan (Tropical storm…sustained winds of 45 knots)

Tropical cyclone Norman (14E) is active in the northeastern Pacific…located approximately 145 NM west of Mazatlan, Mexico (Tropical storm…sustained winds 45 mph)

PDC Global Hazards Atlas displaying 3 hour precipitation accumulation with JTWC forecast positions, segments, winds and error cones for typhoon Jelawat (18W) in the Philippine Sea...and tropical storm Ewiniar (19W) in the western Pacific

Tropical cyclone Jelawat (18W) remains active as interacts with the Ryukyu Islands…on its way towards a direct strike on Okinawa. This large and intense typhoon is forecast to move directly over Okinawa as a weakening typhoon…experiencing very strong typhoon strength winds, pounding high surf, and very heavy precipitation. Thereafter, it will move on towards the east coast of Honshu Island, Japan, where it’s forecast by the JTWC to pass very near…or directly over the large city of Tokyo as a strong tropical storm on Sunday.

Tropical cyclone Ewiniar (19W) also remains active in the western Pacific, tracking generally in a northeasterly direction. 19W is a tropical storm and isn’t expected to reach typhoon status.

PDC Global Hazards Atlas displaying sea water temperatures with NHC forecast positions, segments, winds and error cones for tropical storm Norman (14E) in the northeast Pacific Ocean

Tropical cyclone Norman (14E) is newly formed in the northeastern Pacific, having taken over duties from recently expired Miriam. Norman is located at the entrance to the Gulf of California…not far to the east of the southern tip of Baja California. It will move north or north-northwest before striking land along the west coast of mainland Mexico. It will soon thereafter be downgraded to a tropical depression over Mexico, and then quickly be downgraded further to a post-tropical cyclone as it interacts with the physical terrain features inland from the coast. Strong gusty winds and rough surf conditions will impact the coast…along with heavy rainfall leading to flash flooding in places.