Articles tagged with Convection
Former Hurricane Cristina has lost all its convection and thunderstorms, becoming a ghost of its former self. The system has weakened to a remnant low pressure area with maximum sustained winds near 20-25 knots (23-29 mph/37-46 kph) in the Eastern Pacific.
Hurricane Cristina intensified rapidly on June 12 before quickly weakening the next day, with cloud top temperatures decreasing by nearly 30C. The storm's convection weakened, causing cloud heights to drop and temperatures to rise.
NASA's Aqua satellite captured infrared data on Typhoon Tapah, showing strong thunderstorms and cold cloud-top temperatures. The storm is expected to weaken and curve northeast before reaching Iwo To, due to increasing vertical wind shear in its path.
Tropical Depression 05W is mostly cloud-covered with strongest convection on its western side. The depression is forecast to strengthen into a tropical storm by April 5 as it moves northwesterly through warm ocean waters.
Researchers have developed new simulations that depict the dynamics of deep Earth, revealing a complex composition of the lowermost part of the mantle. The study suggests that mantle plumes can carry a combination of different materials from several reservoirs, explaining observations of hotspot lavas' chemical complexity.
Tropical Cyclone Gillian's maximum sustained winds peaked at 140 knots/161.1 mph/259.3 kph on March 23 as it pulled away from Indonesia. The storm began to weaken due to upper-level northwesterly wind shear and a mid-level trough approaching its path.
NASA's Aqua satellite captured a visible image of Tropical Cyclone Hadi's remnants on March 12, showing the strongest thunderstorms south of the center. The Joint Typhoon Warning Center downgraded the potential for significant tropical cyclone development to low due to marginal environment and weak model development.
System 91S is experiencing strong wind shear, elongated circulation, and broken convection. The Joint Typhoon Warning Center expects the system to weaken as it moves south through the Mozambique Channel.
The researchers developed a theoretical model that explains macroscale fluid convection induced by plasmonic nanostructures. They found that the ITO layer is critical for distributing thermal energy and creating fluid convection, enabling new applications in lab-on-a-chip environments.
Tropical Cyclone Colin is losing organization and strength due to cooler sea surface temperatures and increased vertical wind shear, with most precipitation occurring on its southern side. The storm is expected to weaken into a cold-core low pressure area in the next couple of days.
Tropical Cyclone Madi made landfall in southeastern India as its strongest thunderstorms weakened after passing over NASA's Aqua satellite. The storm's interaction with dry air and increased wind shear led to its rapid weakening.
Researchers found that pollution decreases the size of cloud and ice particles, making them linger in the sky. This leads to taller, bigger anvil-shaped clouds that cool the earth during the day but trap heat at night.
Ex-Tropical Depression 30W is attempting to re-form in the Indian Ocean after dissipating over Nov. 8-10. The storm's re-generation is considered medium-probability for the next few days, with slow westward movement predicted.
Tropical Storm Haiyan is strengthening due to warm waters and low wind shear, expected to intensify to a powerful typhoon before landfall in the Philippines on Nov 8. The Joint Typhoon Warning Center forecasts Haiyan will have maximum sustained winds of near 45 knots/51.7 mph/83.3 kph.
Hurricane Raymond strengthened into a hurricane again after moving into warmer waters with less wind shear, as captured by NASA's Aqua satellite. The storm then weakened due to increased wind shear, leading to its predicted dissipation in the next couple of days.
Tropical Storm Francisco is transitioning to a cold-core low-pressure area due to cold air and mid-latitude westerly winds. The Joint Typhoon Warning Center predicts Francisco will continue this transition as it moves northeast over the next couple of days.
Tropical Depression Lorenzo is experiencing weakening due to dry air and cooler sea surface temperatures. The system's lack of convection is preventing thunderstorm development, ultimately leading to its dissipation.
Tropical Storm Erin weakened to a tropical depression due to cooler waters and dry air in the Eastern Atlantic. Its maximum sustained winds dropped to near 35 mph, with no significant changes expected over the next couple of days.
Tropical Depression Erick has reduced in strength and size, with strong convection diminishing greatly since July 8. It is expected to gradually spin down and become a remnant low-pressure area later today due to moving over even cooler waters.
Tropical Storm Yagi developed over the weekend of June 8 and 9 in the Western North Pacific. The storm's heaviest rain fell south of its center, with rates reaching up to 1.2 inches per hour.
Researchers used geological proxies and computer models to understand how sea level affected rainfall patterns in the Indo-Pacific warm pool during the last ice age. The study found that lowered sea levels led to reduced convection over a region of the warm pool, resulting in drier climates in some areas and wetter climates in others.
NASA's Aqua satellite captured images of Cyclone Imelda on April 11, revealing a well-developed storm with tightly-curved bands of thunderstorms. The storm turned to the south due to wind shear, with powerful thunderstorms dropping heavy rainfall and having cloud top temperatures colder than -63 Fahrenheit.
Tropical Depression 02W formed in the northwestern Pacific Ocean and is currently soaking provinces in Mindanao and Palawan. The storm's low-level circulation center appears disorganized, but forecasters predict it will become more organized once it moves into the South China Sea.
Cyclone Felleng is squeezing between Madagascar and La Reunion as it moves southward in the Mozambique Channel. The storm is expected to weaken as it continues its southeasterly direction.
Tropical Depression Sonamu is showing signs of weakening due to increased wind shear, with maximum sustained winds near 30 knots. The storm's slow movement to the southeast is expected to continue until landfall on Jan. 10 in Malaysia.
NASA's Aqua satellite detected a tropical depression with reduced cloud cover due to dry air, indicating a rapidly deteriorating low-level circulation center. The storm is expected to dissipate over the next couple of days in the South China Sea due to wind shear and dry air
Tropical Storm Sonamu intensified over the eastern South China Sea, moving westward with maximum sustained winds near 35 knots. The storm is expected to peak in intensity on January 5 before weakening due to increasing vertical wind shear, making landfall early next week in east central Malaysia.
Tropical Storm Rosa experienced strong convection pushed southeast of its center due to wind shear. The AIRS instrument captured infrared images showing the strongest thunderstorms in that area had cloud tops as cold as -63F (-52C), leading to heavy rain, weakening Rosa's organization.
Tropical Storm Rosa is intensifying rapidly, with strong convection around its center hinting at heavy rainfall and powerful thunderstorms. The storm's maximum sustained winds are near 40 mph, and it's expected to strengthen before weakening by November 1.
Tropical Storm Maliksi had maximum sustained winds of 45 knots east of its center on Oct. 3, with cloud-top temperatures as cold as -63 Fahrenheit. The storm is forecast to weaken due to strong vertical wind shear and transition into an extra-tropical cyclone.
NASA's Aqua satellite revealed strong convection and thunderstorms in Tropical Storm Nadine, strengthening it back into a hurricane. The storm has lingered for over two weeks, but is still far from breaking the record for longest-lived tropical cyclone.
Tropical Storm Ewiniar remains tropical despite being embedded in a subtropical area of low pressure off Japan's east coast. The storm is still experiencing strong convection and thunderstorms, with maximum sustained winds near 63.2 mph/102 kmh.
Tropical Storm Miriam is weakening due to strong wind shear and cooler sea surface temperatures, with maximum sustained winds decreasing to near 40 mph. The storm is expected to turn west and generate dangerous ocean swells along the south and west coasts of Baja peninsula.
An international team of physicists has made a groundbreaking discovery about the temperature profile in convection, which occurs in boiling liquids and turbulent movement of the Earth's outer core. The findings echo an important discovery from 1930 by Theodore von Kármán and Ludwig Prandtl, known as the Law of the Wall.
Tropical Storm Leslie has moved away from Newfoundland, becoming a post-tropical cyclone as it skirts southern Iceland. In contrast, Tropical Storm Michael is weakening due to its location over cool waters and strong wind shear, forecast to become absorbed by a front soon.
Tropical Storm John existed for only one day, intensifying from a depression to a storm and weakening back into a depression. NASA's Aqua satellite observed convection and cloud top temperatures, but these features diminished as the storm moved north into cooler waters.
Tropical Storm Tembin made landfall in southwestern South Korea, with NASA's Aqua satellite capturing the storm's elongated cloud cover. The storm's central convection was decaying rapidly due to southwesterly wind shear, losing its energy.
A NASA satellite has been monitoring System 92W, a low-pressure system in the western North Pacific Ocean, indicating increased power and uplift as it strengthens. The storm is expected to move west-northwest past northern Luzon, bringing heavy rainfall and potentially localized flooding.
Tropical Storm Khanun is weakening as it approaches a landfall in western South Korea, bringing heavy rainfall and high seas. The storm is expected to make landfall just south of the North Korean border and then rapidly weaken.
NASA's Aqua satellite data shows Fabio with very little strong convection and heavy rainfall, moving north of its center. Sea surface temperatures are too cold to support a tropical cyclone, and the storm is expected to dissipate in a couple of days.
Researchers have created an 'MRI' of the Sun's interior plasma motions, revealing that convective motions are approximately 100 times slower than previously projected. This challenges existing theories on heat transport and magnetic field generation, requiring a re-evaluation of sunspot formation and solar dynamics.
Tropical depression Dokuri has weakened but remains a threat to the Philippines, with strong convection and thunderstorms being pushed away from its center. NASA's infrared satellite imagery shows cold cloud top temperatures indicating strong uplift, and warnings are in effect for several provinces.
Tropical Storm Guchol is consolidating convection and thunderstorms over its low-level circulation center. The storm's slow development is hindered by dry air along its northern edge, resulting in a smaller size.
Tropical Storm Sanvu has strengthened after passing west of Guam, with maximum sustained winds near 45 knots (52 mph) and higher gusts. Forecasters expect it to continue intensifying due to warm sea surface temperatures and light wind shear before curving northeast.
Infrared NASA satellite data indicates a large upper-level storm system approaching the south central US, bringing a threat of heavy rain, gusty winds, and tornadoes to Oklahoma, Kansas, and Texas. Forecasters expect 4-8 inch rainfall totals through Wednesday, with possible moderate and major river flooding.
Tropical Storm Irina weakened due to interaction with southwestern Madagascar and wind shear. The storm is expected to intensify over the warm waters of the Mozambique Channel before making landfall.
Tropical Storm 5A is weakening due to strong wind shear in the Arabian Sea. The storm's convection and thunderstorms are waning, with no visible bands of thunderstorms in NASA satellite imagery. Forecasters predict the storm will dissipate late tomorrow as a shortwave trough steers it away from the Oman coast.
NASA's Aqua satellite captured images of the three tropical systems, showing Irwin still with strong convection but Jova without. The National Hurricane Center expects Irwin to become a remnant low within 24 hours.
Tropical Storm Irwin regained tropical storm status after displaying spotty areas of strong convection in NASA imagery. The storm's cloud top temperatures were measured at -112F, indicating powerful and high winds.
Tropical Storm Banyan (Ramon) is strengthening over the southern Philippines with winds near 40mph. NASA satellite data shows convection growing in area, with cloud top temperatures exceeding -63F (-52C), indicating wind shear from the east.
Tropical Depression 10 and Tropical Storm Irwin formed in the eastern Pacific after Hurricane Hilary dissipated. The storms were detected by NASA's Aqua satellite, which captured strong convection around their centers of circulation.
Tropical Storm Sonca is bringing moderate to light rainfall as it passes east of the southern island of Chichi Jima. The storm's western quadrant has dry air that suppresses thunderstorm development.
Tropical Storm Roke is consolidating with strong convection and cold cloud-top temperatures, indicating its potential for further strengthening. The storm's environment is favorable for development due to light wind shear and warm sea surface temperatures.
Tropical Storm Roke is showing signs of intensification with strong convection and cold cloud tops, posing a threat to Kadena Air Base. Meteorologists expect the storm to strengthen as it approaches the base, bringing tropical storm conditions from Friday to Sunday.
Researchers have detected stellar oscillations in a hotter star, revealing insights into its internal structure and composition. The discovery was made possible by the Kepler space telescope and provides new information on the processes that govern stellar behavior.
Tropical Storm Nate formed quickly in the Bay of Campeche near Mexico's east coast, with NASA satellites capturing its rapid development. The heaviest rainfall was found on the southern side of the storm, with cloud tops reaching heights of up to 14km.
NASA satellite data shows strong convection in both Tropical Storm Fernanda and Hurricane Greg, making them match in size. Both systems are moving towards the western coast of Mexico.
Tropical Storms Bret and Cindy are currently in the open waters of the North Atlantic, hundreds of miles east-northeast of Bermuda. Both storms show strong convection with cloud top temperatures as cold as -70 Celsius, indicating high thunderstorms.
Tropical Storm Bret is experiencing a weakening convective uplift due to dry air intrusion, resulting in decreased thunderstorm intensity and cloud top temperatures of -63F (-52C). The National Hurricane Center forecasts Bret to dissipate by the weekend as it battles increasing wind shear.
A new study simulates small-scale convection at the base of the Pacific plate to explain the Hawaiian hotspot's complex observations, including secondary volcanism and chemical asymmetry. The findings provide insight into the composition and dynamics of the mantle.