Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Satellites See Ups and Downs of Two Tropical Eastern Pacific Systems

08.07.2013
There are two tropical cyclones in the Eastern Pacific Ocean on July 5 and one is powering up and one is powering down. NOAA’s GOES-15 satellite captured Tropical Depression Dalila and Tropical Storm Erick, both off the western coast of Mexico. Because Erick is strengthening and is close to the coast, tropical storm warnings have gone into effect for Mexico.

Tropical Depression Dalila has weakened from a Category 1 hurricane status and is expected to dissipate in the next day or two. Meanwhile, Tropical Storm Erick grew from a low pressure area called System 97E into the fifth tropical depression on July 4 and then into a tropical storm later in the day.


NOAA’s GOES-15 satellite captured both Tropical Depression Dalila and Tropical Storm Erick in one view on July 5 at 1200 UTC (8 a.m. EDT) as they were moving through the Eastern Pacific Ocean.
Image Credit: NASA GOES Project

NOAA’s GOES-15 satellite captured an image of the two tropical cyclones just before daylight reached the Pacific coast on July 5 at 1200 UTC (8 a.m. EDT/5 a.m. PDT). In the GOES-15 infrared image, Tropical Storm Erick is 550 nautical miles east of the much smaller Tropical Depression Dalila. Because of the close proximity of the storms, the National Hurricane Center bulletin of July 5 at 11 a.m. EDT noted Tropical Depression Dalila does not have much of a future as a tropical cyclone due to moderate southeasterly vertical wind shear being created by the outflow from Tropical Storm Erick.

NOAA manages the GOES-15 satellite, and the NASA GOES Project at NASA’s Goddard Space Flight Center in Greenbelt, Md. created the image.

Tropical Depression Dalila

At 11 a.m. EDT on July 4, Dalila was a tropical storm with maximum sustained winds near 40 mph (65 kph). It was centered near 17.4 north and 109.8 west, about 380 miles (610 km) south of the southern tip of Baja California.

Twenty-four hours later at 11 a.m. EDT on July 5, Dalila had weakened further and was a tropical depression. At that time, Dalila’s maximum sustained winds were near 35 mph (55 kph). It had moved to 17.1 north and 111.7 west, about 415 miles (670 km) south-southwest of the southern tip of Baja California. Dalila was still moving to the west, but had slowed to 3 mph (6 kph) and had a minimum central pressure of 1006 millibars.

There are two things that are forcing Dalila's demise: dry air and wind shear. Wind shear from the east has been battering Dalila and dry air has moved into the storm suppressing formation of thunderstorms. Dalila is expected to become a remnant low in the next day or two.

Tropical Storm Erick

Tropical storm warnings are now in effect for the coast of southwestern Mexico eastward to Zihautanejo and westward to La Fortuna, Mexico. There is also a tropical storm watch now in effect for the coast of southwestern Mexico from west of La Fortuna to Cabo Corrientes.

Those warnings and watches are in effect as of July 5 because Tropical Storm Erick is near the coast and strengthening. The National Hurricane Center expects Erick may strengthen to hurricane force by Saturday, July 6. That would make Erick the fourth hurricane of the Eastern Pacific Hurricane Season out of five storms to form.

At 11 a.m. EDT on July 5, the National Hurricane Center (NHC) noted the Erick was located about 150 miles (245 km) south of Lazaro Cardenas, Mexico, near latitude 15.8 north and longitude 102.1 west. Erick’s maximum sustained winds had grown to 60 mph (95 kph) and strengthening is expected. Erick is moving to the west-northwest near 10 mph (17 kph) and is expected to continue moving in that direction over the next several days.

Tropical-storm-force winds extend outward up to 90 miles (150 km) from the center and the GOES-15 imagery shows that Erick’s cloud cover has a larger extent.

Residents in the warning area can expect 3 to 5 inches over southwestern Oaxaca, southern Guerrero, southern Michoaca, Colima, and southern Jalisco, Mexico. The NHC noted that isolated totals could reach up to 8 inches in those areas. Tropical-storm-force winds are expected in the warning area today, July 5 and on July 6. Coastal areas can also expect rough surf as Erick moves up the coast.

Text credit: Rob Gutro, NASA's Goddard Space Flight Center, Greenbelt, Md.

Rob Gutro | EurekAlert!
Further information:
http://www.nasa.gov
http://www.nasa.gov/content/dalila-eastern-pacific/

More articles from Earth Sciences:

nachricht By saving cost and energy, the lighting revolution may increase light pollution
23.11.2017 | Helmholtz-Zentrum Potsdam - Deutsches GeoForschungsZentrum GFZ

nachricht Frictional Heat Powers Hydrothermal Activity on Enceladus
23.11.2017 | Universität Heidelberg

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Frictional Heat Powers Hydrothermal Activity on Enceladus

Computer simulation shows how the icy moon heats water in a porous rock core

Heat from the friction of rocks caused by tidal forces could be the “engine” for the hydrothermal activity on Saturn's moon Enceladus. This presupposes that...

Im Focus: Nanoparticles help with malaria diagnosis – new rapid test in development

The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.

Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

Underwater acoustic localization of marine mammals and vehicles

23.11.2017 | Information Technology

Enhancing the quantum sensing capabilities of diamond

23.11.2017 | Physics and Astronomy

Meadows beat out shrubs when it comes to storing carbon

23.11.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>