January 15, 2013
Newborn Tropical Cyclone Emang Strengthening Seen By NASA
Tropical Cyclone Emang developed in the Southern Indian Ocean on Sunday, Jan. 13 about 525 nautical miles east-southeast of Diego Garcia. At that time, infrared satellite imagery revealed that the low level circulation center was partially exposed to outer winds, and there was a burst of thunderstorm development over the northwestern quadrant.
On Monday, Jan. 14, at 0900 UTC (4 a.m. EST), Emang's maximum sustained winds were near 35 knots (40 mph/64.8 kph). Emang's center moved near 12.5 south latitude and 79.4 east longitude, about 500 nautical miles (575.4 miles/ 926 km) southeast of Diego Garcia. Emang was moving to the southwest at just 3 knots (3.4 mph/5.5 kph). Emang is located in is a weak steering environment. It is moving slowly under the influence of a building subtropical ridge (elongated area) of high pressure located to the south of the storm.
Monday's satellite data showed that the low-level center had now become fully exposed to outside winds, and there were shallow bands of thunderstorms around the northwestern edge of the storm. Emang is currently being battered with moderate (up to 20 knots/23 mph/37 kph) vertical wind shear.
Forecasters at the Joint Typhoon Warning Center expect improvements in environmental conditions which will improve the storm's organization. Emang is expected to slowly intensify over the next couple of days as it travels over open ocean. By the end of the week, Emang is expected to reach peak intensity as a cyclone of 65 knots (74.8 mph/120.4 kph).
Emang is currently not a threat to any land areas.
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