NASA infrared imagery also revealed powerful thunderstorms around the center of circulation which are indicators that Kirk will continue strengthening. Meanwhile, another low pressure area appears to be organizing in the eastern Atlantic, far to the southeast of Kirk.
On Aug. 29 at 12:29 a.m. EDT the AIRS instrument on Aqua captured infrared data on Tropical Storm Kirk's clouds. Cloud top temperatures were colder (purple) than –63F (-52C) around the center of circulation and west of the center. That's where the strongest storms and heaviest rainfall were occurring. Kirk appears to resemble a comet because windshear is pushing clouds and showers to the northeast. Credit: NASA JPL, Ed Olsen
Tropical Depression Kirk formed from the eleventh tropical depression of the Atlantic Ocean season. Tropical Depression 11 formed on Aug. 28 at 5 p.m. EDT about 1,270 miles (2,045 km) east-northeast of the Lesser Antilles.
On Aug. 29 at 12:29 a.m. EDT the Atmospheric Infrared Sounder (AIRS) instrument on NASA's Aqua satellite captured infrared data on Tropical Storm Kirk's clouds. Cloud top temperatures were colder than –63F (-52C) around the center of circulation and west of the center. That's where the strongest storms and heaviest rainfall were occurring. Early on Aug. 29, wind shear was affecting Kirk from the southwest. Those winds were pushing clouds and showers associated with Kirk to the northeast giving Kirk the appearance of a "comet tail" in infrared imagery.
At 11 a.m. EDT (1500 UTC) on Aug. 29, Kirk's maximum sustained winds were near 45 mph (75 kmh) and gradual strengthening is expected. The center of Tropical Storm Kirk was about 1,135 miles (1,825) km east-northeast of the Northern Leeward Islands, near latitude 24.7 north and longitude 46.9 west. Kirk is moving toward the west-northwest near 12 mph (19 kmh), and is expected to turn northwest on Aug. 30.
Kirk is dealing with a combination of wind shear and dry air, which will make intensification a slow process. The National Hurricane Center (NHC) expects Kirk to curve to the northeast into an area of weaker wind shear, where it is expected to intensify into a hurricane over the weekend of Sept. 1-2, remaining over open ocean. Kirk is also expected to become extra-tropical on its northeastern journey.
While Kirk continues getting organized, another low pressure area is following suit in the eastern Atlantic. There's a low pressure area riding along a tropical wave, located about 700 miles west-southwest of the Cape Verde Islands, that is showing an increase in shower and thunderstorm activity. The system has a 50% chance of becoming tropical depression 12 as it moves to the westward to west-northwestward at about 15 mph (24.4 kmh) over the next couple of days.
Rob Gutro | EurekAlert!
Predicting unpredictability: Information theory offers new way to read ice cores
07.12.2016 | Santa Fe Institute
Sea ice hit record lows in November
07.12.2016 | University of Colorado at Boulder
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
07.12.2016 | Health and Medicine
07.12.2016 | Life Sciences
07.12.2016 | Health and Medicine