Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA sees wind shear affecting Hurricane Ignacio

02.09.2015

Hurricane Ignacio is staying far enough away from the Hawaiian Islands to not bring heavy rainfall or gusty winds, but is still causing rough surf. Infrared satellite data on September 1 shows that wind shear is adversely affecting the storm and weakening it.

The Atmospheric Infrared Sounder or AIRS instrument that flies aboard NASA's Aqua satellite gathers infrared data that reveals temperatures. When NASA's Aqua satellite passed over Ignacio on September 1 at 11:41 UTC (7:41 a.m. EDT), the AIRS data and showed some high, cold, strong thunderstorms surrounded the center where cloud top temperatures were near -63F/-53C.


This infrared image from NOAA's GOES-West satellite shows Hurricane Ignacio's clouds bring blown to the northeast from wind shear on Sept. 1 at 8:00 a.m. EDT.

Credits: NASA/NOAA GOES Project

However, AIRS also showed that southwesterly wind shear was pushing the thunderstorms to the northeast of the low-level center.

The National Hurricane Center noted that infrared data showed the central dense overcast clouds had now been completely sheared away and replaced with a "warmer banding feature across the western and northern semicircles." That means weaker thunderstorms with less cold cloud top temperatures, because there wasn't as much uplift in the atmosphere to push them higher.

On September 1 at 8:00 a.m. EDT an infrared image from NOAA's GOES-West satellite clearly showed that that southwesterly vertical wind shear was affecting the storm. In the image it appeared that Ignacio developed a tail that extended to the northeast as its clouds and thunderstorms were being pushed in that direction.

At 11 a.m. EDT (1500 UTC/5 a.m. HST), the center of Hurricane Ignacio was near latitude 23.5 north and longitude 153.7 west. That's about 310 miles (495 km) east-northeast of Honolulu, Hawaii, and 275 miles (445 km) north-northeast of Hilo. The estimated minimum central pressure is 984 millibars.

Ignacio's maximum sustained winds dropped to near 80 mph (130 kph). That means that Kilo is a category one hurricane on the Saffir-Simpson Hurricane wind scale. The Central Pacific Hurricane Center expects Ignacio to slowly weaken through early Thursday, September 3.

NOAA's Central Pacific Hurricane Center noted that large swells generated by Ignacio will continue along east and northeast facing shores of the Hawaiian Islands over the next couple of days. Resultant surf will be large...potentially damaging and life-threatening.

Rob Gutro | EurekAlert!

More articles from Earth Sciences:

nachricht Ice cave in Transylvania yields window into region's past
28.04.2017 | National Science Foundation

nachricht Citizen science campaign to aid disaster response
28.04.2017 | International Institute for Applied Systems Analysis (IIASA)

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Fighting drug resistant tuberculosis – InfectoGnostics meets MYCO-NET² partners in Peru

28.04.2017 | Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

 
Latest News

Wireless power can drive tiny electronic devices in the GI tract

28.04.2017 | Medical Engineering

Ice cave in Transylvania yields window into region's past

28.04.2017 | Earth Sciences

Nose2Brain – Better Therapy for Multiple Sclerosis

28.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>