Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Come Together, Right Now … Tropical Depression 18W Dissipates, Parma Intensifies

02.10.2009
Two tropical cyclones in the Western Pacific are keeping in tune to the 1969 hit song by the Beatles, "Come Together." Tropical Depression 18W and Tropical Storm Parma are already beginning to merge now that 18W made landfall in Guam and dissipated. 18W did bring gusty winds and heavy downpours to Guam, and will continue to affect the surf over the next day or two.

NASA's Aqua satellite flew over the two storms and captured them in one image (because they're close to each other). Parma is located west of 18W's remnants. The Atmospheric Infrared Sounder (AIRS) instrument on Aqua noticed high thunderstorms in Parma as cloud top temperatures were colder than -63 Fahrenheit, and Parma intensified into a typhoon. In 18W, satellite data showed warmer cloud top temperatures, indicating a much weaker system. AIRS captured an image of both storms on September 30 at 1:11 a.m. (Guam local time).

At 11 a.m. local time on September 30, 18W's center was 85 miles east-southeast of Guam. At that time, it had not yet made landfall and was headed toward Guam (Guam is 14 hours ahead of U.S. Eastern Daylight Time). 18W then made landfall in Guam in the afternoon hours (local time) on September 30, and has since weakened into a remnant low pressure area.

The U.S. Navy's Joint Typhoon Warning Center issued its final warning on 18W at 7 p.m. local time (5 a.m. EDT) today, after 18W had made landfall and crossed back into the Western Pacific Ocean. At that time, 18W's center 55 miles west-northwest of Guam, near 13.9 north and 144.0 east and its maximum sustained winds were down to 15 knots (17 mph). 18W's remnants were moving west-northwest near 21 knots (24 mph). That's going to bring the remnants toward Tropical Storm Parma quickly, causing Parma to absorb 18W's leftover energy.

At 7:30 p.m. Guam local time (9:30 a.m. EDT) on September 30 there were High Surf Warnings up for Guam, the Marianas Islands, and Micronesia until 6 p.m. (local time) on Thursday. The National Weather Service noted, "Large swells generated by tropical storm 18w before it weakened to a tropical depression will generate high surf on east facing reefs through Thursday afternoon. A high surf advisory means that high surf will affect exposed reefs and beaches in the advisory area producing dangerous rip currents. Expect hazardous surf of 10 to 12 feet Thursday on east facing reefs. The surf should subside below hazardous levels by Thursday evening."

Guam also posted a Small Craft Advisory in effect until 6 p.m. CHST (local time, Guam) on Thursday. A small craft advisory means that seas 10 feet or greater and sustained winds or frequent gusts of 22 knots (25 mph) or higher are expected to produce conditions hazardous to small craft.

As 18W dissipated, Tropical Storm Parma intensified into a typhoon. Typhoon Parma is located to the west of 18W's remnants, but close enough to draw its leftover energy.

On September 30 at 11 a.m. EDT (3 a.m. local time on October 1), Typhoon Parma had sustained winds near 75 knots (86 mph) and was moving west-northwest near 15 knots (17 mph). It was located about 160 miles north-northwest of the island of Palau. Tropical storm-force winds stretch out to 75 miles from the center, while typhoon/hurricane-force winds extend only 10 miles from the center. Meteorologists at the Philippine Atmospheric Geophysical and Astronomical Services Administration (Pagasa) are calling Typhoon Parma "Pepeng" in the Philippines.

On the current forecast track, Typhoon Parma will not make landfall in the northern Philippines, but its center will remain at sea as it passes to the northeast over the next several days. Because residents of the northern Philippines are still coping with the floodwaters generated from Tropical Depression Ondoy (Ketsana), another tropical cyclone is the last thing they need.

Text credit: Rob Gutro, NASA/Goddard Space Flight Center

Rob Gutro | EurekAlert!
Further information:
http://www.nasa.gov
http://www.nasa.gov/mission_pages/hurricanes/archives/2009/h2009_Parma.html#

More articles from Earth Sciences:

nachricht NASA eyes Pineapple Express soaking California
24.02.2017 | NASA/Goddard Space Flight Center

nachricht 'Quartz' crystals at the Earth's core power its magnetic field
23.02.2017 | Tokyo Institute of Technology

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Stingless bees have their nests protected by soldiers

24.02.2017 | Life Sciences

New risk factors for anxiety disorders

24.02.2017 | Life Sciences

MWC 2017: 5G Capital Berlin

24.02.2017 | Trade Fair News

VideoLinks
B2B-VideoLinks
More VideoLinks >>>