Aqua Satellite sees Tropical Storm Parma lingering in the Luzon Strait

October 5, 2009
NASA's Tropical Rainfall Measuring Mission (TRMM) satellite captured Parma's rainfall from space on Oct. 2. The yellow and green areas indicate moderate rainfall between .78 to 1.57 inches per hour. Red areas near Parma's center are considered heavy rainfall at almost 2 inches per hour. The white hurricane shaped icons show the storm's track and projected track after Oct. 2. Credit: NASA/SSAI, Hal Pierce

Two instruments on NASA's Aqua satellite captured views of Tropical Storm Parma early today, October 5, while it was almost stationary in the Luzon Strait and it appears that it will sit there for several days.

In the early morning hours (EDT) today, October 5, the Moderate Imaging Spectroradiometer (MODIS) instrument on NASA's Aqua satellite captured an image of Parma in the Luzon Strait and heading into the South China Sea. Taiwan is located north of the Luzon Strait, and the are located to its south.

Warnings were still effect in the Philippines today: Public warning signal 1 is in force in La Union, Benguet, Mountain Province, Ifugao, Kalinga and Rest of Cagayan. Public storm warning signal 2 is in force in Ilocos Sur, Abra, Apayao, Northern Cagayan, Calayan Group of Islands, Babuyan Group of Islands and Batanes Group of Islands. Finally, Public storm warning signal 3 is in force in Ilocos Norte.

The MODIS instrument on NASA's Aqua satellite captured an image of Tropical Storm Parma in the Luzon Strait, heading into the South China Sea, during the early morning hours of Oct. 5, 2009. Parma was passing the Philippines (south) and Taiwan (north). Credit: NASA MODIS Rapid Response Team

On October 5 at 11 a.m. EDT (1500 UTC), Tropical Storm Parma was located approximately 330 nautical miles east-southeast of Hong Kong, China, near 20.3 North and 119.6 East. Parma is barely moving. Parma had sustained winds near 63 mph (55 knots). Tropical storm-force winds extend as far out as 115 miles from Parma's center, and are generating waves up to 30 feet high, so beaches in both Taiwan and the northern Philippines will experience high and dangerous surf and .

When NASA's flew over Typhoon Parma today it also captured infrared, microwave and visible images of the typhoon. Aqua's Atmospheric Infrared Sounder (AIRS) instrument analyzed temperatures in Parma's . AIRS revealed that Parma still had some cold high cloud temperatures colder than minus 63 Fahrenheit, indicating some strong convection.

Right now, there's nothing to push Parma west into the South China Sea, so forecasters at the U.S. Navy's Joint Typhoon Warning Center expect it to linger off the northwest coast of Luzon for the next five days. That means more rains and gusty winds for northern Luzon.

Aqua's Atmospheric Infrared Sounder (AIRS) instrument captured Parma's (left area of purple and blue) high thunderstorm cloud temperatures that were colder than minus 63 Fahrenheit. On the right edge of the satellite's view is the western half of Super Typhoon Melor (resembling a half moon). Credit: NASA JPL, Ed Olsen

There's a lot of uncertainty in the computer forecast models for Parma's path, but he's not expected to become a typhoon again because of upper level winds and the upwelling of cool waters from the ocean bottom. In the meantime, residents of the northern Philippines and Taiwan can expect showers and gusty winds until Parma finds his way.

Source: JPL/NASA (news : web)

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