NASA sees Typhoon Rammasun exit the Philippines

July 16, 2014

Typhoon Rammasun passed through the central Philippines overnight and NASA satellite imagery showed that the storm's center moved into the South China Sea. NASA's TRMM satellite showed the soaking rains that Rammasun brought to the Philippines as it tracked from east to west.

Before Rammasun made landfall, the Tropical Rainfall Measuring Mission or TRMM satellite passed over the storm and measured cloud heights and rainfall rates. On July 14, 2014 at 18:19 UTC (2:19 p.m. EDT), TRMM spotted powerful, high thunderstorms reaching heights of almost 17km (10.5 miles). Rain was measured falling at a rate of almost 102 mm (about 4 inches) per hour and that heavy rainfall continued as Rammasun made landfall in the central Philippines.

Rammasun made landfall near Legazpi City on July 15. Legazpi is the capital city of the province of Albay in the Philippines, located on the east coast.

On July 16, 2014 at 02:40 UTC (July 15 at 10:40 p.m. EDT) Typhoon Rammasun had already crossed the Philippines and entered the South China Sea when NASA's Terra satellite passed overhead. The Moderate Resolution Imaging Spectroradiometer or MODIS instrument provides high-resolution imagery and captured Rammasun after it moved west of Manila. The eye of the had become obscured by clouds and was not apparent in the MODIS image. The typhoon also appeared somewhat elongated in a west-to-east direction.

On July 16 at 09:00 UTC (5 a.m. EDT), Typhoon Rammasun's maximum sustained winds were near 80 knots (92.0 mph/148.2 kph). The center was in the South China Sea, near 15.4 north latitude and 118.5 east longitude. It was about 114 nautical miles west-northwest of Manila and was moving to the northwest at 15 knots (17.2 mph/27.7 kph). The Joint Typhoon Warning Center expects Rammasun to strengthen to 105 knots (120.8 mph/194.5 kph) by July 18 before weakening again.

Typhoon Rammasun is expected to pass north of Hainan Island, China on July 18 around 0600 UTC (2 a.m. EDT). As a result, China Meteorological Administration (CMA) noted that Typhoon standby signal No 1 is expected to be raised today, July 16 as Typhoon Rammasun is expected to pass within about 500 miles (~ 800 kilometers) from Hong Kong.

The CMA expects Rammasun to approach the coastal area of eastern Hainan Island to western Guangxi on the mainland. Rammasun is forecast to make its next landfall at Lingshui, Hainan Island, and then in Yangjiang of the Guangdong Province of mainland China, early (local time) on July 18.

Explore further: NASA catches short-lived tropical cyclone Hagibis landfalling in China

More information: For current watches and warnings from CMA, visit: www.cma.gov.cn/en/WeatherWarnings/ActiveWarnings/201407/t20140716_252541.html.

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