Articles tagged with Tropical Cyclones
Hurricane Leslie appears to be 'closing its eye' on NASA satellite imagery, a sign of weakening, and dropped from hurricane to tropical storm on Sept. 7. The storm is expected to move northward, potentially regaining hurricane status over the weekend.
Tropical Storm Leslie is experiencing slow strengthening due to cooler ocean waters kicked up by its slow movement, sapping its strength. The storm is also battling weaker wind shear, which has been gradually decreasing, allowing it to potentially reach hurricane status later in the day.
Tropical Storm Leslie showed little change in form and strength over a 22-hour period, with maximum sustained winds remaining near 60-65 mph. The storm is expected to strengthen into a hurricane by the end of the week as wind shear relaxes.
NASA has detected a newborn Tropical Storm Joyce in the Central Atlantic, with organized circulation and cold cloud top temperatures indicating strength. The storm is being affected by a dry Saharan air layer, which is unusual for tropical cyclones, and is expected to follow a southern edge of high pressure over the ocean.
Tropical Storm Isaac is bringing heavy rainfall to the Lesser Antilles, while Tropical Depression 10 forms east of Isaac. Both storms are showing good circulation and are expected to strengthen in the coming days.
NASA's Terra and Aqua satellites monitor low-pressure areas with a chance of becoming tropical depressions, storms, and hurricanes in the Atlantic Ocean. Tropical Depression 9 is expected to strengthen into a tropical storm, while System 96L has a high chance of becoming the tenth tropical depression of the season.
Tropical Storm Hector continues to weaken, while Tropical Depression 7's remnants move over Central America. Hector's small circulation is spinning off Mexico's western coast, with the remnants of TD7 producing showers and thunderstorms across parts of Central America and Mexico.
Tropical Storm Kai-tak is affecting the northern Philippines with warnings in effect. The storm is expected to make landfall north of Hong Kong on August 16 and will pass through the Luzon Strait.
Researchers found that when hurricanes blow over ocean regions swamped by fresh water, the conditions can intensify the storm. This results in a 50 percent increase in intensity, which can lead to much larger destruction and death.
NASA is monitoring four tropical systems across the Atlantic, including Tropical Depression Ernesto, which is generating heavy rainfall over Mexico's mountains. Meanwhile, the remnants of Tropical Storm Florence are lingering near Puerto Rico, while Tropical Depression 7 and System 93L may develop into new cyclones in the coming days.
Hurricane Gilma showed concentrated areas of very cold cloud tops with temperatures as low as -63F (-52C), indicating powerful thunderstorms. The storm is moving towards cooler waters, expected to weaken over the next day.
TRMM satellite data reveals areas of intense rainfall, with powerful convective thunderstorms dropping rain at a rate greater than 50mm/h, potentially intensifying the storm. Heavy rainfall is expected to cause flash floods and mudslides in affected regions, with up to 15 inches of rain predicted in some areas.
NASA's Aqua satellite detected Tropical Storm Kirogi moving into sea surface temperatures below 25 Celsius, expected to weaken and transform into an extra-tropical cyclone. The storm is forecasted to track over cooler waters, helping to dissipate its warm core.
Tropical Storm Ernesto has its strongest thunderstorms on the eastern and northern sides of the storm. The area of strongest storms has expanded during the morning hours of August 7, wrapped around the center of circulation.
Tropical Storm 13W is weakening due to rising cloud top temperatures, according to NASA's infrared imagery. The storm's maximum sustained winds were near 35 knots on August 7, and it was moving northwest at 9 knots.
Tropical Storm Ernesto is strengthening with NASA tracking its progress, revealing strong thunderstorms and deep convection on August 5. The storm's maximum sustained winds were near 50 mph on August 5, and it continued to strengthen after passing over the Aqua satellite.
Three tropical cyclones, Tropical Storms Damrey and Saola, and Tropical Depression Haikui, are active in the northwestern Pacific Ocean. AIRS data showed that cloud top temperatures in Damrey and Saola were warming, while Haikui had a large area of cooling cloud top temperatures, indicating strong storms and heavy rain.
Tropical Storm Saola and Typhoon Damrey appear to be interacting as they approach China, with both systems expected to dissipate within two days. NASA's Terra satellite captured images of the storm systems on August 2, showing Damrey developing an eye and Saola's eye closing due to land interaction.
Two tropical cyclones, Typhoon Saola and Typhoon Damrey, are forecast to make landfall in China. Saola is expected to strengthen before interacting with land, while Damrey will weaken due to cooler sea surface temperatures.
NASA's Tropical Rainfall Measuring Mission (TRMM) satellite identified 'hot towers' in Typhoon Vicente, indicating rapid intensification. The storm intensified by 50 knots within six hours, with sustained winds reaching 120 knots.
Tropical Cyclone Khanun strengthened after passing over the Aqua satellite on July 15, 2012, with organized thunderstorms and low cloud top temperatures indicating potential for heavy rainfall.
NASA's TRMM satellite observed hot towers within Tropical Depression 06E, which later became Tropical Storm Fabio. The research found that storms with hot towers were twice as likely to intensify within six hours than those without.
Tropical Storm Daniel, once a hurricane, is weakening due to moving over cooler waters in the Pacific Ocean. NASA's TRMM satellite data shows light to moderate rainfall with average Sea Surface Temperatures of around 24-25 C.
NASA's GOES-15 satellite captured an image of three tropical systems chasing each other in the eastern Pacific Ocean, with Tropical Storm Daniel and Hurricane Emilia at the center. The system is expected to weaken to tropical depression status by July 11.
Two hurricanes, Daniel and Emilia, are being tracked by NASA's TRMM satellite, which showed intense rainfall in Emilia's northwestern quadrant. Hurricane-force winds extend only 25 miles from the center of both storms, with Emilia expected to intensify further
Tropical Storm Daniel formed off western Mexico's coast and strengthened into a tropical storm, with NASA's TRMM satellite capturing images of its rainfall and towering clouds. Research shows that a hot tower in the eyewall is twice as likely to intensify within six hours than without one.
Tropical Depression 21P developed in the South Pacific Ocean between Papua New Guinea and the Solomon Islands. The TRMM Satellite captured rainfall data and cloud heights, revealing a small but organized tropical cyclone with intense convective storms dropping heavy rainfall.
Tropical depression Doksuri was born in the western North Pacific Ocean on June 26, 2012. The NASA Terra satellite captured an infrared image revealing higher thunderstorms around the center of the cyclone.
NASA's Aqua satellite data revealed that sea surface temperatures of 290 Kelvin (62°F) in the area where Chris is located were not sufficient to maintain its strength. As a result, Chris weakened and became a post-tropical storm with maximum sustained winds near 45 mph.
NASA satellite data shows Tropical Depression Talim's thunderstorms becoming disorganized as it interacts with Taiwan and a nearby frontal system. The depression is expected to dissipate later today due to these factors.
Tropical Storm Guchol weakened as it approached Japan, passing over the mainland on June 19, 2012. Radar and infrared imagery captured by NASA's TRMM and Aqua satellites showed a weakening typhoon with maximum sustained winds near 55 knots.
System 94E has a greater chance of development, with a 60% chance of becoming a tropical depression in the next two days. NASA's TRMM satellite observed heavy rainfall and intense convective storms within its area, indicating potential for cyclone formation.
NASA TRMM satellite data shows Tropical Depression Kuena experiencing weaker rainfall rates between June 6 and 7. The storm's intense rainfall rates were found in convective storms that reached heights above 15km.
Typhoon Mawar was observed to be producing a large area of rainfall southeast of Japan, with most heavy rainfall occurring north of the dissipating tropical cyclone's center. The storm's surface temperature and extent were also studied using NASA's Aqua satellite, revealing a lack of an eye wall and weakening circulation.
Tropical Depression 03W is expected to strengthen as it approaches Guam, with NASA's TRMM satellite detecting a hot tower at 15 kilometers high. The storm will bring rain and gusty winds to the island over the next couple of days.
NASA's TRMM satellite spotted a 'hot tower' in newborn Tropical Depression 2E, indicating the storm is likely to intensify. The storm's maximum sustained winds were near 35 mph, and it was moving west at 6 mph.
Satellite data indicates that System 99P is likely to continue struggling due to weak organization and dry air. Despite sufficient moisture available for tropical cyclone development, the system's low-level circulation remains weak.
Tropical Storm Daphne strengthened overnight, with NASA's Terra satellite capturing its cloud extent using infrared imagery. The MODIS image showed a more rounded cloud shape, indicating lessened wind shear. Maximum sustained winds near 50 knots were reported, with the storm speeding southeast at 25 knots.
Cyclone Lua is strengthening as it approaches the Pilbara coast in Northern Australia, with forecasters predicting a landfall on March 17. The storm's cloud top temperatures indicate signs of strengthening, including compact clouds and tropical storm-force winds extending out to 160 nautical miles.
Cyclone Lua is consolidating and has tightly-curved bands of thunderstorms wrapping into its center. The storm is expected to continue strengthening to as much as 95 knots (109 mph/ 176 kph) before making landfall in the vicinity of Port Hedland on March 17 around mid-day local time.
Tropical Cyclone Lua has strengthened to a minimum tropical storm with maximum sustained winds near 35 knots, while System 96P is getting organized in the Southern Pacific Ocean. Both systems are affecting coastal areas in northern Australia and are expected to bring heavy rainfall, gusty winds, and rough surf.
The TRMM satellite's Precipitation Radar instrument provided a three-dimensional profile of precipitation up to 20km height, revealing powerful storm towers around the storm's center reaching 15km. Tropical Storm Koji was predicted to strengthen into a hurricane with peak winds of 70kts, but will weaken soon after.
Cyclone Irina has weakened to a minimal tropical storm due to increased wind shear and cooler sea surface temperatures. NASA's satellite imagery confirms the decline, with the strongest thunderstorms being pushed away from the center of circulation.
Tropical Storm Irina is showing signs of weakening due to the presence of dry air and cool sea surface temperatures. The storm's cloud top temperatures indicate a significant reduction in strength compared to its previous state, with the southern quadrant experiencing colder temperatures.
Tropical Cyclone Irina is making a slow loop in the southern Mozambique Channel, with maximum sustained winds near 45 knots. The storm is weakening due to cool sea surface temperatures and moderate wind shear, with forecasters predicting potential dissipation in the next day or two.
TRMM satellite reveals heavy rainfall and powerful thunderstorms near the storm's circulation. The storm's structure was analyzed using 3D images, showing towering thunderstorm towers and high radar reflectivity values.
Cyclone Irina is strengthening in the Mozambique Channel, with cloud top temperatures growing colder and indicating more strength. The storm is expected to make landfall north of Maputo, Mozambique on March 3, 2012.
Heavy rainfall from Tropical Cyclone System 92S caused flooding in northern Madagascar, with intense storms dropping rainfall at rates of over 50mm/hr. The TRMM satellite measured high rain totals, including gusty winds and moderate to heavy rainfall along the Mozambique Channel.
Cyclone Giovanna has caused flooding and damage in Madagascar before entering the Mozambique Channel. The storm is expected to move westward towards Mozambique's southeastern coast, with wind shear preventing further strengthening.
Tropical Cyclone Jasmine is lingering near Tonga, causing gusty winds and heavy rainfall on the islands. The cyclone's strongest thunderstorms and heaviest rainfall are concentrated in its northeastern quadrant.
Cyclone Giovanna made landfall in eastern Madagascar with winds gusting to 120 mph, bringing heavy rain and strong winds. The storm is expected to move into the Mozambique Channel, where it will quickly reorganize due to warm waters.
Cyclone Giovanna has reached Category One status with maximum sustained winds of 75 mph, forecast to make landfall in east-central Madagascar by February 13. Residents should prepare for heavy rainfall, rough surf conditions and Cyclone-force winds.
NASA's Terra satellite captures visible image of Cyclone Giovanna on February 10, revealing high thunderstorms around its center. Forecasters predict landfall in east-central Madagascar with heavy flooding, rough surf conditions, and strong winds.
Cyclone Jasmine has maintained Category One hurricane status with maximum sustained winds near 75 knots (86 mph), and its eye is now about 60 nautical miles in diameter. The storm is moving southeast at 8 knots (9 mph) through an area of stable air, weakening the warm tropical cyclone.
Tropical Storm 12S forms in Southern Indian Ocean, posing a threat to Madagascar with strong winds and heavy rainfall. The Joint Typhoon Warning Center expects landfall in east central Madagascar on February 13, as the storm strengthens due to warm sea surface temperatures.
Tropical Cyclone Jasmine has a 20nautical mile-wide eye visible in NASA imagery passing between Vanuatu and New Caledonia. Forecasters predict peak wind speed reached and weakening over the week.
A small tropical storm, Tropical Storm 11P, has formed in the South Pacific Ocean and is approaching the main island of Tonga. The storm has maximum sustained winds of 35 knots and is moving quickly to the east-southeast at 21 knots.
Cyclone Jasmine is strengthening as it approaches Vanuatu and New Caledonia, with forecasters predicting hurricane-force winds and heavy rainfall. The storm's current track takes it between the two island nations, with its center expected to pass nearby on February 8.
Tropical Depression Iggy is being battered by wind shear, causing its strongest thunderstorms to be pushed away from the center. This leads to the storm's collapse, as convection must be stacked like a haystack to maintain the cyclone's structure.
Researchers at Yale University predict that tropical cyclones will cause $109 billion in damages globally by 2100, with climate change exacerbating the issue. The US and China are expected to bear the brunt of the damage, while small island nations like those in the Caribbean will be disproportionately affected.