NASA catches the extra-tropical ending of Mangga
Mangga transitioned to an extra-tropical storm, losing tropical characteristics and retaining hurricane-force winds. The system brought damaging winds and high tides to Western Australia.
Tropical Cyclones
Articles tagged with Tropical Cyclones
NASA satellites covering typhoon Amphan headed for landfall
NASA satellites provided critical imagery of Typhoon Amphan as it approached a landfall in northeastern India. The storm's cloud top temperatures indicated strong storms with potential for heavy rainfall.
NASA examines tropical storm Arthur's rainfall as it transitions
Tropical Storm Arthur experienced heavy rainfall rates of over 25mm per hour near its northeastern side, with lighter rates throughout the rest of the storm. Forecasters incorporated this data into their forecasts, noting potential impacts on swells and life-threatening surf conditions in the mid-Atlantic and southeast US coasts.
NASA-NOAA satellite sees Amphan's eye obscured
Tropical Cyclone Amphan has weakened and its eye is covered by high clouds, according to NASA-NOAA's Suomi NPP satellite imagery. The storm is forecast to make landfall near Kolkata on May 20, bringing powerful storms with heavy rainfall potential.
Trends in tropical cyclone intensity
Tropical cyclones have increased in intensity over the past four decades, with wind speeds of at least 100 knots rising by approximately 15% between early and latter halves of record. The increase corresponds to a statistically significant rate of 8% per decade, consistent with physical theory and numerical simulations.
SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateMay 18, 2020
NASA finds heavy water vapor concentration rings eye of Cyclone Amphan
The NASA Aqua satellite revealed a unique feature of Cyclone Amphan: high concentrations of water vapor surrounding the storm's eye. This characteristic can lead to intense rainfall and stronger storms. The satellite data showed coldest cloud top temperatures as low as minus 70 degrees Fahrenheit.
Satellites eye Typhoon Vongfong landfall in the Philippines
Typhoon Vongfong made landfall in the Philippines on May 14, 2020, as a typhoon. The storm weakened into a tropical storm by May 15, with maximum sustained winds of 60 knots (69 mph/111 kph).
Satellites eye typhoon Vongfong landfall in the Philippines
NASA-NOAA satellites track Typhoon Vongfong's landfall in the Philippines, revealing signs of a mature tropical system. The storm is weakening as it moves northward over Visayas and Luzon regions.
FSU researchers find even small disturbances can trigger catastrophic storms
Researchers at Florida State University have found that even minor changes in atmospheric conditions can lead to the development of hurricanes. The study used numerical models to simulate cloud formation and found that most simulations produced major hurricanes in a range of latitudes, including areas near the equator.
SourceFlorida State University·JournalJournal of Advances in Modeling Earth Systems·DateMay 13, 2020
NASA sees Tropical Storm Vongfong form and threaten the Philippines
Tropical Storm Vongfong is consolidating and organizing into a tropical cyclone, with higher cloud top temperatures indicating stronger storm conditions. The storm is expected to strengthen over the Philippines archipelago, bringing scattered to heavy rain showers and strong winds.
Climate change and tropical cyclones
Researchers found that cyclone frequency decreased in the southern Indian Ocean and western North Pacific but increased in the North Atlantic and central Pacific. The study suggests that climate change is driving these changes.
SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateMay 4, 2020
Study: Climate change has been influencing where tropical cyclones rage
New research reveals climate change impacts on tropical cyclone patterns, with rising activity in the North Atlantic and Central Pacific, while declining in other regions. Greenhouse gases, aerosols, and volcanic eruptions contribute to these changes.
NASA catches formation and final fate of Eastern Pacific's Tropical Depression 1E
Tropical Depression 1E formed in the Eastern Pacific Ocean on April 25 and reached its peak with maximum sustained winds near 35 mph. The system weakened as it encountered dry air and cooler sea-surface temperatures, eventually becoming a post-tropical remnant low.
NASA finds Tropical Storm Jeruto develop in Southern Indian Ocean
Tropical Storm Jeruto was identified by NASA's Suomi NPP satellite on April 15, 2020, with a visible image showing elongated shape due to wind shear. Forecasters predict the storm will likely dissipate within a couple of days as vertical wind shear increases.
Extra-tropical Cyclone Harold caught by NASA's Terra Satellite
Cyclone Harold's transformation into an extra-tropical cyclone was captured by NASA's Terra satellite, revealing elongated clouds and convection displaced to the southeast. The system is undergoing a transition characterized by wind shear and baroclinic processes, which may retain hurricane-force winds.
NASA continues tracking Tropical Cyclone Harold's excessive rainfall
Tropical Cyclone Harold generated heavy rain due to cloud top temperatures as cold as minus 80 degrees Fahrenheit, indicating strong storms. NASA's IMERG algorithm provided near-real-time precipitation estimates, helping gain a greater understanding of major storms.
NASA finds very heavy rainfall in major tropical cyclone Harold
NASA's IMERG satellite rainfall product reveals intense precipitation rates of over 30 millimeters per hour from Hurricane Harold's core region, resulting in significant flooding rains and strong winds.
NASA finds Tropical Cyclone Harold between Vanuatu and Fiji
Tropical Cyclone Harold brought heavy rains and hurricane-force winds to Vanuatu, with NASA-NOAA's Suomi NPP satellite tracking its movement towards Fiji. Forecasters expect the storm to make a brief landfall over Fiji on April 7, although intensity may remain steady or increase if an eye forms.
NASA finds heavy rainfall in powerful tropical cyclone Harold
Tropical Cyclone Harold has caused severe flooding and property damage in Vanuatu, with NASA's GPM satellite detecting heavy rainfall rates of up to 48 mm per hour. The cyclone is now a Category 4 storm, forecasted to continue affecting Fiji later this week.
NASA sees tropical cyclone Irondro developing an eye
Tropical Cyclone Irondro is intensifying in the Southern Indian Ocean, with NASA's Terra satellite capturing its organized storm structure and developing cloud-filled eye. The Joint Typhoon Warning Center forecasts maximum sustained winds near 75 knots by April 4.
NASA-NOAA satellite catches Tropical Cyclone Harold develop near Solomon Islands
NASA's Suomi NPP satellite provides visible image of newly formed Tropical Cyclone Harold near Solomon Islands. The storm threatens Vanuatu, which has issued warnings for damaging gale force winds.
NASA finds heavy rain potential in new Tropical Cyclone Irondro
Tropical Cyclone Irondro shows strongest storms west of the center, with coldest cloud top temperatures as cold as minus 80 degrees Fahrenheit. NASA's satellite data indicates a high potential for heavy rain due to these strong storm systems.
NASA find Herold a fading ex-tropical cyclone
Herold, a former tropical cyclone, has weakened to a low-pressure area with wispy clouds and minimal heavy rainfall. NASA's Aqua satellite provided forecasters with a visible image of the storm's center on March 20.
NASA finds little strength left in Tropical Cyclone Herold
Tropical Cyclone Herold's strength dwindled as it moved into high wind shear and cooler sea surface temperatures. The system's low-level circulation center was partially exposed, with minimal strong convection, according to NASA's Aqua satellite imagery.
NASA analyzes tropical cyclone Herold's water vapor concentration
NASA's Aqua satellite gathered data on Tropical Cyclone Herold, showing wind shear weakened the storm and pushed strongest storms away from its center. The study found coldest cloud top temperatures, indicating potential for heavy rainfall.
Tropical Cyclone Herold's eye opens further on NASA satellite imagery
Tropical Cyclone Herold intensified with a more defined eye in NASA satellite imagery, confirming a sharp intensification trend over the past 12 hours. The eye was visible down to the ocean's surface through clear clouds, revealing powerful bands of thunderstorms.
Weather records in giant clam shells
Researchers analyzed giant clam shell biogeochemical records from the South China Sea and found pulsed changes matched extreme weather events. The study suggests Tridacna shells could be used to record paleoweather patterns.
SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateMar 16, 2020
NASA sees Tropical Cyclone Herold's eye
NASA's Aqua satellite captured a visible image of Tropical Cyclone Herold with a well-developed hurricane and powerful thunderstorms surrounding its eye. The storm is forecast to turn southeast and strengthen to 90 knots before becoming subtropical.
NASA finds Gretel becoming extra-tropical
Tropical Cyclone 23P formed on March 14 and intensified into a tropical storm, later renamed Gretel. The storm's center was located near latitude 26.6 degrees south and longitude 169.7 degrees east, about 675 nautical miles north-northwest of Auckland, New Zealand.
NASA's Terra Satellite observes development of Tropical Storm 22S
Tropical Storm 22S formed near northeastern Madagascar after being observed by NASA's Terra satellite, which captured strong thunderstorms and rainfall in the western quadrant. The storm is expected to strengthen to 90 knots (104 mph) before becoming subtropical and potentially pass between Mauritius and Rodrigues.
NASA finds ex-Tropical Cyclone 21S affecting Australia's Pilbara Coast
NASA's Terra satellite provided a visible image of Ex-Tropical Cyclone 21S, which is still affecting Western Australia's Pilbara Coast with heavy rainfall and squally winds. The system is expected to bring severe weather events, including damaging wind gusts and flash flooding.
NASA-NOAA satellite catches development of tropical storm 21S
Tropical Storm 21S formed in the Southern Indian Ocean and was tracked by NASA-NOAA's Suomi NPP satellite. The storm is expected to make landfall in Western Australia as a tropical storm, with maximum sustained winds near 35 knots (40 mph/65 kph).
A new method to improve tropical cyclone intensity forecasts
A new method using Nonlinear Forcing Singular Vector (NFSV) reduces model error in numerical weather forecasting models. The approach identifies the uncertainty of variable and area most likely to cause large errors, enabling adaptive satellite observations to improve short-term forecasts.
SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateMar 9, 2020
Putting a price on the protective power of wetlands
A new study estimates the monetary value of wetlands' property-protecting services, with one square kilometer valued at $1.8 million annually. Coastal counties with more wetlands experience less property damage from hurricanes and tropical storms.
SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·DateMar 2, 2020
Coastal wetlands and storm damage
US counties with more wetlands experienced significantly less property damage from hurricanes and tropical storms over a recent 20-year period. Coastal wetlands serve as natural levees, reducing property damage by up to $430 million in Florida since 1996.
SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateMar 2, 2020
NASA measures rainfall rates in two American Samoa Tropical Cyclones
NASA's GPM satellite measures heavy rainfall rates of up to 1 inch per hour for both storms, with lesser amounts falling on surrounding areas. The National Weather Service has issued warnings for strong surfs and flash floods in American Samoa.
NASA sees tropical cyclone 18p form near American Samoa
Tropical cyclone 18P has organized into a tropical depression near American Samoa, with maximum sustained winds of 30 knots. It is forecast to intensify into a tropical storm by Feb. 22 and then dissipate due to vertical wind shear.
NASA finds wind shear doing in Tropical Storm Gabekile
Tropical Storm Gabekile rapidly intensified from hurricane-force winds to weakening due to strong northwesterly wind shear, according to NASA's Aqua satellite imagery. Wind shear disrupts the storm's rotation by pushing it apart at different altitudes.
NASA catches the re-birth of zombie tropical cyclone Francisco
NASA's Aqua satellite captured an image of Tropical Cyclone Francisco re-developing a rounded shape with thunderstorms spiraling into its center. The storm is expected to make landfall over Madagascar and weaken as it tracks inland, dissipating on Feb. 15.
NASA finds ex-Tropical Cyclone Uesi's rains affecting New Zealand
Ex-Tropical Cyclone Uesi continues to generate moderate rainfall in its southern quadrant, with the heaviest rates found south of the center. The system is expected to bring periods of heavy rain to the west and south of the South Island on Sunday and early Monday.
NASA finds wind shear affecting tropical cyclone Uesi
Wind shear, a measure of changing winds with altitude, affects Tropical Cyclone Uesi's rotation and strength. The NASA Aqua satellite revealed this impact, showing clouds being pushed to the southeast of the center of circulation.
NASA finds heavy rain southwest of tropical cyclone Uesi's center
Heavy rainfall was detected southwest of Tropical Cyclone Uesi's center by NASA's Global Precipitation Measurement mission. Rainfall rates reached up to 1.6 inches per hour in some areas, with scattered light rain falling at slower rates in other regions.
NASA finds a stronger Tropical Cyclone Uesi near New Caledonia
NASA's Terra satellite has detected a strengthening Tropical Cyclone Uesi, affecting New Caledonia with heavy rainfall and gusty winds. The storm is moving southwards, pulling away from Vanuatu but still generating powerful thunderstorms.
Drying effects of tropical cyclones
Tropical cyclones have a drying effect on the Maritime Continent, exacerbating dry seasons. Forecasting tropical cyclone activity can improve predictions for this region's circulation patterns.
SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateFeb 10, 2020
NASA analyzes ex-Tropical Cyclone Damien's rainfall in Western Australia
GPM mission core satellite analyzed rainfall generated by ex-Tropical Cyclone Damien's remnants, showing heaviest rainfall occurring south of the center at a rate of at least 0.2 inches per hour. Heavy rainfall is forecast over the southeastern Gascoyne and adjacent Goldfields, posing a risk of flash flooding.
Tropical cyclones: How they contribute to better forecast in the Maritime Continent
A new study reveals that tropical cyclones can create drying effects in the Maritime Continent due to induced zonal wind anomalies. Observational data shows that these events decrease precipitations in the region not directly affected by typhoons, highlighting their role in regional climate patterns.
SourceCMCC Foundation - Euro-Mediterranean Center on Climate Change·JournalProceedings of the National Academy of Sciences·DateFeb 10, 2020
NASA analyzes tropical cyclone Cristina's water vapor concentration
Tropical Cyclone Cristina was analyzed by NASA's Aqua satellite, revealing high concentrations of water vapor and cold cloud top temperatures around the center. These conditions suggest a powerful storm with the capability to produce heavy rainfall.
NASA satellite finds wind shear adversely affecting tropical storm Francisco
Wind shear is displacing deep convection about 125 nautical miles to the southeast, causing elongation and weakening the storm. The JTWC expects Francisco will continue moving to the southeast until it dissipates.
NASA sees tropical storm Damien form off Australia's Pilbara coast
Tropical Cyclone Damien has formed off the Pilbara coastline of Western Australia, with NASA's Terra satellite providing visible images. The storm is expected to continue intensifying as it tracks west-southwest, with severe impacts forecast for the Pilbara coast on Saturday.
NASA satellite observes Tropical Storm Francisco's formation
Tropical Cyclone Francisco formed on Feb 5, 2020, with powerful thunderstorms and shallow banding wrapping into the center. The storm is forecast to intensify slightly before weakening over the next day and a half, moving southeastward.
NASA finds Tropical Cyclone Diane's quick fade
Tropical Cyclone Diane formed on January 24 and quickly weakened due to wind shear, dissipating by January 27. The storm's clouds were blown southwest of the weak center, revealing its final state.
NASA's Aqua satellite reveals Tropical Cyclone Esami's dissipation
Tropical Cyclone Esami formed on January 24 and dissipated three days later due to weakening winds. NASA's Aqua satellite imagery confirmed the storm's dissipation on January 27.
NASA catches the dying remnants of Tropical Cyclone 12P
Tropical Cyclone 12P formed on January 25 with peak winds at 35 knots and dissipated by January 27 under adverse conditions. NASA's Aqua satellite observed the storm's demise, revealing areas of heavy rainfall that were quickly dissipating.
NASA finds wind shear affected new Tropical Cyclone 09S
Tropical Cyclone 09S formed on Jan 22 despite wind shear, but was weakened and eventually dissipated by the same force. The storm's rapid deterioration was attributed to increasing wind shear and movement into cooler waters.
A simple way to predict tropical cyclones undergoing rapid intensification
Researchers develop new method to predict rapid intensification in tropical cyclones using the Synchronization Index, which measures vertical structure coherence. This index helps forecasters monitor vortex structure and understand processes influencing rapid intensification.
SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateJan 21, 2020
NASA water vapor imagery shows Tino's heavy rain potential over Fiji
Tropical Cyclone Tino's intense water vapor content and low cloud top temperatures indicate a high risk of heavy rainfall and strong winds. NASA's Aqua satellite imagery provides critical data for meteorologists to track the storm's movement and potential impact on Fiji and surrounding islands.
NASA catches the dissipation of Tropical Cyclone Claudia
Tropical Cyclone Claudia was dissipating in the Southern Indian Ocean when NASA's Terra satellite captured its final image. The storm's maximum sustained winds had decreased to 35 knots, and strong northeasterly wind shear had pushed clouds away from its center.
NASA infrared data analyzes cloud top temperatures in Tropical Cyclone Claudia
Satellite data revealed that Tropical Cyclone Claudia was weakening, with stronger storms located on the western side. Cloud top temperatures around -63 degrees Fahrenheit indicate strong storms capable of heavy rain, but are now warming due to reduced air uplift.
NASA-NOAA satellite imagery reveals a weaker Tropical Cyclone Claudia
Tropical Storm Claudia weakened due to wind shear and dry air, with maximum sustained winds dropping to 47 mph. The storm continued to appear elongated from NASA-NOAA's Suomi NPP satellite imagery.
NASA tracking Tropical Storm Claudia battling wind shear
Tropical Storm Claudia is battling strong vertical wind shear as it moves away from Western Australia and through the Southern Indian Ocean. The storm's shape, elongated from west to east, provides forecasters with an idea of its organization and strength.