At 1700 UTC/1 p.m. EDT on Sept. 20, System 98W was centered about 16.2 north and 146.7 east, about 195 nautical miles north-northeast of Andersen Air Force Base, Guam. System 98W had maximum sustained winds near 25 knots/28.7 mph/46.3 kph.
NASA's TRMM satellite data was combined with infrared imagery from Japan's MTSAT-2 to provide a better picture of the low pressure area and showed that heavy rainfall was occurring over Guam at 0945 UTC.
NASA's Tropical Rainfall Measuring Mission satellite called TRMM passed over System 98W earlier in the day and observed its rainfall.
At the Naval Research Laboratory, NASA's TRMM satellite data was combined with infrared imagery from Japan's MTSAT-2 to provide a better picture of the low pressure area. The TRMM data showed that heavy rainfall was occurring over Guam at 0945 UTC/5:45 a.m. EDT.
Later on Sept. 20, at 3 p.m. EDT, Guam International Airport was still reporting heavy rain, and fog/mist and a temperature of 79F. Winds were blowing from the southwest at 14 mph/22.5 kph, gusting to 18 mph/28/9.
Infrared satellite imagery showed strong convection northeast of the center of circulation and convective banding of thunderstorms southwest of the center. Those thunderstorms in the southwestern bands were affecting Guam.
The Joint Typhoon Warning Center noted that strong vertical wind shear is appearing in the upper-levels of the atmosphere near System 98W. In fact, northeasterly winds are blowing at 30 knots/34.5 mph/55.5 kph. Wind shear can weaken a storm and even tear it apart, and there's even moderate wind shear of up to 20 knots/23 mph/37 kph happening in the storm's center.
The National Weather Service in Guam issued the following bulletin at 12 a.m. CHST on Saturday, Sept. 21, 2013 local time: A tropical disturbance continues to develop in the vicinity of the Marianas. Satellite and radar imagery indicate the heaviest rain associated with the tropical disturbance has shifted to the south and east of the Marianas. However...a brief heavy shower is still possible through Saturday. The latest computer models indicate that much of the weekend will be markedly drier than the past few days. The potential for heavy rainfall will return late Sunday into Monday as this system develops and moves northward. Light to gentle winds tonight will become southwest and increase to 25 to 30 mph by Saturday night as the disturbance moves northward. Offshore seas of 8 to 10 feet tonight will steadily increase to between 11 and 13 feet by Monday as southwest winds increase across the Marianas over the next few days.
Because the low-level center is consolidating the Joint Typhoon Warning Center expects System 98W to become a tropical depression in the next 24 hours. System 98W has been moving to the north and is expected to continue moving in that direction over the next two days.
Rob Gutro | EurekAlert!
Less radiation in inner Van Allen belt than previously believed
21.03.2017 | DOE/Los Alamos National Laboratory
Mars volcano, Earth's dinosaurs went extinct about the same time
21.03.2017 | NASA/Goddard Space Flight Center
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
22.03.2017 | Materials Sciences
22.03.2017 | Physics and Astronomy
22.03.2017 | Materials Sciences