Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Eastern Pacific Season Off with a Bang: Amanda is First Major Hurricane


The first tropical cyclone of the Eastern Pacific hurricane season grew into a major hurricane as Hurricane Amanda reached Category 4 status on the Saffir-Simpson scale over the Memorial Day holiday weekend. NASA and NOAA satellites watched as Amanda developed an eye while strengthening.

Fortunately, Amanda is far enough away from coastal Mexico that no watches or warnings are in effect today, May 27. 

On May 25 at 2100 UTC/5 p.m. EDT the MODIS instrument aboard NASA's Aqua satellite captured this visible image that revealed an eye in Hurricane Amanda.

Image Credit: NASA Goddard MODIS Rapid Response Team

On Sunday, May 25, Amanda strengthened into the first Major Hurricane in the Eastern Pacific Ocean. Maximum sustained winds were near 155 mph (250 kph). Amanda was centered near 11.8 north and 111.1 west, about 770 miles (1,240 km) south of the southern tip of Baja California.

Amanda is a Category 4 on the Saffir-Simpson scale. Minimum central pressure was near 932 millibars, and Amanda was crawling to the north at 2 mph (4 kph). Visible imagery from MODIS (Moderate Resolution Imaging Spectroradiometer) instrument aboard NASA's Aqua satellite and NOAA's GOES-West satellite captured imagery that revealed an eye in Hurricane Amanda. 

... more about:
»Flight »Hurricane »Laboratory »Ocean »Pacific »UTC »pressure »satellite »scale

On Monday, May 26, Hurricane Amanda started to weaken from its peak at a Category 4 status on the Saffir-Simpson scale. An image from NOAA's GOES-West satellite at 1200 UTC/5:00 a.m. PDT showed that Amanda's eye had become cloud-filled.

Amanda's maximum sustained winds were near 140 mph (220 kph) and the hurricane was moving to the north-northwest at 7 mph/ (11 kph). Amanda was centered near 13.1 north and 111.6 west, about 685 miles (1,105 km) south of the southern tip of Baja California.

On Tuesday, May 26 at 1500 UTC (11 a.m. EDT/8 a.m. PDT), Amanda's maximum sustained winds were near 120 mph (195 kph). Amanda is a category three hurricane on the Saffir-Simpson Hurricane wind scale. 

Amanda was centered near 14.7 north latitude and 112.3 west longitude, about 585 miles (945 km) south-southwest of the southern tip of Baja California, Mexico. Amanda was moving to the north-northwest at 6 mph (9 kph) and had a minimum central pressure of 957 millibars.

The U.S. Naval Research Laboratory in Washington, D.C. created a composite image using rainfall rate data from NASA-JAXA's Tropical Rainfall Measuring Mission (TRMM) satellite and infrared imagery from NOAA's GOES-West satellite to create a comprehensive look at Amanda. The infrared data showed the cloud extent, and the TRMM data showed heavy rainfall around Amanda's center falling at 1.4 inches (35 mm) per hour.

The National Hurricane Center forecasts weakening during the next 48 hours. In fact, NHC forecasters expect Amanda to weaken to a tropical storm by Thursday.

Text credit:  Rob Gutro
NASA's Goddard Space Flight Center

Rob Gutro | Eurek Alert!
Further information:

Further reports about: Flight Hurricane Laboratory Ocean Pacific UTC pressure satellite scale

More articles from Earth Sciences:

nachricht Rapid plankton growth in ocean seen as sign of carbon dioxide loading
27.11.2015 | Johns Hopkins University

nachricht Revealing glacier flow with animated satellite images
26.11.2015 | European Geosciences Union

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Climate study finds evidence of global shift in the 1980s

Planet Earth experienced a global climate shift in the late 1980s on an unprecedented scale, fuelled by anthropogenic warming and a volcanic eruption, according to new research published this week.

Scientists say that a major step change, or ‘regime shift’, in the Earth’s biophysical systems, from the upper atmosphere to the depths of the ocean and from...

Im Focus: Innovative Photovoltaics – from the Lab to the Façade

Fraunhofer ISE Demonstrates New Cell and Module Technologies on its Outer Building Façade

The Fraunhofer Institute for Solar Energy Systems ISE has installed 70 photovoltaic modules on the outer façade of one of its lab buildings. The modules were...

Im Focus: Lactate for Brain Energy

Nerve cells cover their high energy demand with glucose and lactate. Scientists of the University of Zurich now provide new support for this. They show for the first time in the intact mouse brain evidence for an exchange of lactate between different brain cells. With this study they were able to confirm a 20-year old hypothesis.

In comparison to other organs, the human brain has the highest energy requirements. The supply of energy for nerve cells and the particular role of lactic acid...

Im Focus: Laser process simulation available as app for first time

In laser material processing, the simulation of processes has made great strides over the past few years. Today, the software can predict relatively well what will happen on the workpiece. Unfortunately, it is also highly complex and requires a lot of computing time. Thanks to clever simplification, experts from Fraunhofer ILT are now able to offer the first-ever simulation software that calculates processes in real time and also runs on tablet computers and smartphones. The fast software enables users to do without expensive experiments and to find optimum process parameters even more effectively.

Before now, the reliable simulation of laser processes was a job for experts. Armed with sophisticated software packages and after many hours on computer...

Im Focus: Quantum Simulation: A Better Understanding of Magnetism

Heidelberg physicists use ultracold atoms to imitate the behaviour of electrons in a solid

Researchers at Heidelberg University have devised a new way to study the phenomenon of magnetism. Using ultracold atoms at near absolute zero, they prepared a...

All Focus news of the innovation-report >>>



Event News

Fraunhofer’s Urban Futures Conference: 2 days in the city of the future

25.11.2015 | Event News

Gluten oder nicht Gluten? Überempfindlichkeit auf Weizen kann unterschiedliche Ursachen haben

17.11.2015 | Event News

Art Collection Deutsche Börse zeigt Ausstellung „Traces of Disorder“

21.10.2015 | Event News

Latest News

Siemens to supply 126 megawatts to onshore wind power plants in Scotland

27.11.2015 | Press release

Two decades of training students and experts in tracking infectious disease

27.11.2015 | Life Sciences

Coming to a monitor near you: A defect-free, molecule-thick film

27.11.2015 | Materials Sciences

More VideoLinks >>>