Articles tagged with Convection
Tropical Cyclone Alcide's winds have dropped to 80 mph as it lingers just northeast of Madagascar in the Southern Indian Ocean. The storm is expected to curve northward and pass near the northern point of Madagascar over several days.
Hurricane Leslie has formed in the Atlantic with strong storms circling its center, revealing temperatures as low as -63 degrees Fahrenheit. The National Hurricane Center forecasts some additional strengthening over the next day or so, with a northward motion expected to begin tonight.
Tropical Cyclone Luban continued to move through the Arabian Sea toward the coast of Oman, with a visible image provided by NOAA-20 satellite on October 10. The storm has maintained deep central convection and spiral bands wrapped tightly toward the center.
NASA's Aqua satellite captured infrared data showing Hurricane Leslie's strongest thunderstorms were fragmented and circling the center at minus 63 degrees Fahrenheit. The National Hurricane Center forecasts the hurricane will remain within favorable environmental conditions, allowing it to strengthen further.
Typhoon Trami showed a wide and ragged eye with deep convection and developing thunderstorms in NASA-NOAA's Suomi NPP satellite image on Sept. 27, 2018. The storm was located near latitude 22.2 degrees north and longitude 128.6 degrees east, with maximum sustained winds of 90 knots.
The Suomi NPP satellite observed Tropical Storm Kirk's regeneration east of the Caribbean Sea, prompting warnings and watches for the region. The storm strengthened to near 50 mph with higher gusts before expected weakening over the eastern Caribbean Sea.
Subtropical Storm Leslie was found drifting in the North Central Atlantic Ocean by NASA's Terra satellite on September 24, 2018. The storm was characterized by patches of deep convection and organized moderate to deep convection. It is expected to strengthen by mid-week while interacting with a frontal system.
Former Tropical Storm Paul has weakened to a remnant low-pressure area about 1,115 miles west of Mexico's Baja California, as observed by NASA's Aqua satellite. The system is expected to gradually weaken over the next several days.
Tropical Storm 27W is forecast to intensify over the next three days before making landfall on Sept. 13 over China's Luichow Peninsula. The storm will then emerge into the Gulf of Tonkin, making a final landfall north of Hanoi, Vietnam.
Tropical Storm Paul is experiencing wind shear, displacing its strongest storms from the center. This displacement has led to a lack of well-organized convection and minimal banding features, according to the National Hurricane Center. As a result, weakening is forecast, and Paul is expected to become a remnant low in a few days.
NASA's Suomi NPP satellite captured an infrared image of Potential Tropical Cyclone Six, revealing a circulation that is gradually becoming less elongated. A Tropical Storm Warning has been issued for the southern Cabo Verde islands as the storm strengthens and is expected to become a tropical storm later today or Saturday.
Typhoon Jebi, a category 4 hurricane, is expected to strengthen and maintain its strength for one and a half days before weakening on September 1. The storm has a small eye and deepening convection, with warm sea surface temperatures and low vertical wind shear favoring continued intensification.
Tropical Depression Leepi was nearing landfall in southern South Korea when NASA-NOAA's Suomi NPP satellite captured its shapeless form. The depression is moving toward the north-northwest with maximum sustained winds at 34.5 mph, expected to be absorbed into a mid-latitude cyclone by Aug. 17.
Tropical Storm Hector has two areas of strong convection with cloud top temperatures as cold as minus 70 degrees Fahrenheit, indicating a high potential for heavy rain. The storm is moving west-northwest towards the Johnston Island Atoll at maximum sustained winds of near 40 mph.
Typhoon Shanshan maintained an eye despite weakening due to NASA-NOAA's Suomi NPP satellite capture. The storm weakened on August 6, with deep convection diminishing and eyewall and rain bands becoming less organized.
Hurricane Hector was observed in detail by NASA-NOAA's Suomi NPP satellite, providing forecasters with valuable information on its clouds and structure. The storm maintained its strength with sustained winds of 120 mph and an estimated central pressure of 962 millibars.
NASA-NOAA's Suomi NPP satellite detected Tropical Depression Jongdari near Japan, with diminishing convection over the low-level center. The storm is expected to maintain depression status as it moves towards China, with a potential landfall south of Shanghai on August 3.
Tropical Storm Jongdari is increasing its organization and will likely become a typhoon within the next day. The storm has a small area of deep convection and is predicted to make landfall in Japan with winds of 100 knots.
The Suomi NPP satellite captured an image of Tropical Storm Son-Tinh with a small area of deep convection. The storm is expected to make landfall in northern Vietnam and slowly weaken as it tracks inland.
Typhoon Maria made landfall in southeastern China after striking Japan and Taiwan, bringing torrential rains and sustained winds of 95 knots.
Tropical Storm Fabio's strong convection has dissipated, replaced by a swirl of low- to mid-level clouds. Ocean swells from the system are causing life-threatening surf and rip current conditions along southern California and Baja California coasts.
NASA's Aqua satellite captured an image of newly formed Tropical Depression 09W in the Northwestern Pacific on June 28. The storm has tracked westward at 8mph and is expected to become a tropical storm on June 29.
Tropical Storm Daniel weakened as it passed over NASA's Terra satellite on June 24, revealing a small area of strong storms around its center. By the next day, the storm had degenerated into a remnant low-pressure area, forecast to dissipate by Wednesday night with maximum sustained winds near 30 mph
Tropical Storm 07W formed near Kadena Air Base on Okinawa, Japan. It is moving northeast at 23mph with maximum sustained winds of 40mph.
The National Hurricane Center has issued a Tropical Storm Watch for parts of Mexico and Cuba as Subtropical Storm Alberto strengthens in the Atlantic Ocean. The storm is forecast to produce large rainfall totals and life-threatening flash floods and mudslides, particularly in the northeastern portions of the Yucatan Peninsula.
Remnants of Tropical Cyclone Iris continue to linger off Queensland, Australia, with moderate to high vertical winds shear. The system is moving through warm sea surface temperatures, creating favorable conditions for potential re-development into a tropical cyclone.
Tropical Depression Jelawat continues to face southerly vertical wind shear, causing its convection to remain displaced to the north. By March 27, it had developed into a tropical depression with sustained winds near 34.5 mph.
Scientists found a correlation between sea surface temperatures in the Irminger Sea, surface freshwater, and atmospheric conditions in the Labrador Sea. The study suggests that freshwater can weaken deep convection, leading to delayed onset of winter convection and potentially weakening ocean circulation.
Tropical Storm Sanba is approaching the Philippines, triggering warnings and warnings signal #2 in effect for Mindanao provinces. The storm's center was located 415 miles east of Zamboanga, moving west-northwest at 18.4mph.
NASA's Terra satellite captured images of Tropical Depression 02W on Feb. 9, showing a developing low level circulation center with minimal convection. The National Weather Service has issued a Tropical Storm Watch for Guam and Yap State due to hazardous surf and rip currents.
Researchers have produced the first detailed images of a giant star outside our solar system, showcasing a nearly circular atmosphere with complex convection cells. The study confirms theories about the characteristics of these stars, providing insight into their future activity and appearance.
A study found that concentration fluctuations are enhanced by thermal convection in mixtures of high and low viscosity liquids. Immobile regions are also formed during this process due to the large viscosity difference.
Post-tropical cyclone Rina has become a large storm in the North Central Atlantic, with sustained winds near 45mph. It is expected to move rapidly northeastward before dissipating over Ireland.
Tropical Depression 27W continues to struggle south of Guam, with vertical wind shear pushing clouds and thunderstorms away from its center. The depression is expected to consolidate and strengthen as it moves into warmer waters.
A new tropical depression has formed in the Northwestern Pacific Ocean, hours after a neighboring system dissipated. The storm is currently disorganized and moving northwest towards Guam, with maximum sustained winds near 35 knots.
Ramon's cloud tops showed strong convection and cold temperatures, indicating a low-pressure area. The remnants are expected to dissipate later on October 5.
Tropical Depression Pilar weakened to a remnant low pressure area, with disorganized clouds and weak convection south of Baja California. The National Hurricane Center forecasted scattered showers and thunderstorms in the region, yielding heavy rain.
Cyclone Jose, a large storm with tropical-storm-force winds extending up to 220 miles from its center, continues to bring conditions to southern New England. The storm is expected to meander off the coast of New England for several days, with maximum sustained winds near 50 mph and gradual weakening forecasted.
Tropical Storm Lee's development was hindered by strong westerly to northwesterly vertical wind shear, pushing its thunderstorms east of its center. The storm is expected to degenerate into a remnant low on Tuesday, Sept. 19, due to continued hostile winds and dry conditions.
Tropical Depression 15E is experiencing decreased convection near its center but remains in a better position than 24 hours ago. The system is expected to strengthen over the next 48 hours and potentially become a Tropical Storm, moving westward at a slow pace.
Hurricane Jose's eye is visible in satellite images over the Leeward Islands, with maximum sustained winds near 130 mph. The storm is expected to make a turn toward the north, gradually weakening over the next couple of days.
Lidia, a tropical cyclone, weakened and degenerated into a remnant low-pressure area on Sept. 2. The National Hurricane Center issued its final advisory at 5 a.m. EDT, noting the storm had lost deep convection and was expected to dissipate by Monday night.
Kenneth remains a well-organized gale-force tropical low pressure area with maximum sustained winds near 40 mph. The storm is moving north-northwestward towards the north and weakening over the next couple of days.
A team of astronomers has created the first two-dimensional velocity map of a star's atmosphere using ESO's Very Large Telescope Interferometer. The study reveals turbulent, low-density gas much further from the star than predicted, challenging current theories on convection.
Hurricane Kenneth, a category 4 storm, has strengthened significantly in the Eastern Pacific, with maximum sustained winds reaching 130mph. The National Hurricane Center forecasts a turn toward the northwest, then north-northwest over the next couple of days.
Researchers found that ultra-low velocity zones are different in composition from the surrounding mantle and migrate towards the margins of large blobs. These findings suggest that pockets of rock with distinct compositions collect at the boundary between Earth's core and mantle, likely driven by heat.
Tropical Depression Emily consolidated along the central west coast of Florida on July 31 before tracking east into the Western North Atlantic Ocean. The storm's circulation has become elongated, with limited convection near the center due to dry mid-level air, and is expected to turn toward the northeast later in August.
Tropical Storm Irwin is moving north-northwestward in the Eastern Pacific Ocean, with its structure remaining well-organized despite declining deep convection. The storm is expected to continue weakening and eventually degenerate into a remnant low, with forecasters predicting this will occur by Tuesday, August 1.
Tropical Storm Hilary weakened to 70mph after passing over cooler waters, according to NASA's infrared imagery from the Aqua satellite. The storm's deep convection and thunderstorms decreased late on July 27, indicating dry air has wrapped into its circulation.
Tropical Depression Greg appears as a low-swirl of low clouds with some patches of convection on July 26. It is moving west at 12 mph and has sustained winds near 30 mph, forecast to become a remnant low later.
Tropical Storm Greg is weakening due to wind shear in the Eastern Pacific Ocean, with convection confined to its northwestern quadrant. The storm is expected to move towards the northwest and then west, leading to a gradual decline in its strength.
Hurricane Hilary strengthened into a hurricane on July 24, with organized winds extending up to 10 miles from the center and higher gusts. The National Hurricane Center expects Hilary to become a major hurricane on Tuesday, July 25.
The 9th tropical depression of the Northwestern Pacific Ocean has formed and developed into a tropical storm, Tropical Storm Kulap. Located near 28.4 degrees north latitude and 177.7 degrees east longitude, Kulap is moving northwest at 19.5 mph with maximum sustained winds near 40 mph.
A new Tropical Storm Depression 8E formed in the Eastern Pacific Ocean on July 18, with deep convection developing closer to its center. The depression is expected to move towards the west and southwest, with slight strengthening possible, potentially becoming a tropical storm within the next day.
Former Hurricane Eugene has diminished to a small area of convection in the northeastern quadrant. The storm's remnant circulation is expected to continue moving northwest and dissipate over the next couple of days.
NASA satellite imagery revealed Tropical Depression 4 is losing its punch, moving into a relatively dry environment. The National Hurricane Center expects the storm to degenerate into a remnant low pressure area tonight.
Researchers at University of Leicester discovered that the Earth's mantle is divided into two large domains that convect independently, with limited mixing between them. Upper mantle material flows to lower parts of the mantle when it reaches a subduction zone, maintaining separate domains.
Shallow cumulus clouds over Inner Mongolia Grassland were found to have a cloud base height of 3.4 km and top height of 5 km, significantly higher than those over the sea, yet similar to those in the Southern Great Plains.
Researchers at Bilkent University have designed the simplest experimental system to date, revealing that particles can form autocatalytic aggregates with rich complex behaviors. The study employs only two parameters: laser power and beam position, allowing for controlled emergence of complexity.
NASA's Terra satellite captured a well-defined low-level circulation center in the remains of Tropical Depression 02W, located near the Philippines. The system is expected to move northward but faces unfavorable conditions for intensification.