Articles tagged with Tropical Cyclones
Tropical Cyclone Ula is weakening as it moves west and passes south of Fiji, according to NASA satellite imagery. The storm's thunderstorm development has 'shrunk and become more shallow,' with dry air from the southwest sapping evaporation and thunderstorm activity.
Tropical Cyclone Ula affected Fiji over Jan. 2-3, but moved south by Jan. 4, losing its eye and decreasing to Category 1 hurricane. Warnings for surrounding islands remain in force due to a nearby trough of low pressure.
Tropical Depression 9C formed in the Central Pacific on Dec. 31, with an elongated structure suggesting a weaker system. The depression is moving northwest at 3 mph, with little change in intensity expected due to strong easterly wind shear.
Tropical Cyclone Ula formed on Dec 30 and intensified with rain rates exceeding 83.6 mm per hour, generating rough surf and dangerous coastal conditions for Fiji and American Samoa.
NASA's GOES-West satellite captured a consolidating storm in the Southern Pacific Ocean as System 92P on Dec 29, 2015. The low-pressure area organized and was designated Tropical Cyclone Ula on Dec 30, 2015, near American Samoa.
Researchers from the University of Guam studied the effects of tropical cyclones on nutrient cycling in Philippine coastal zones. Cycad plants were found to be particularly resilient to typhoon damage, but their populations are restricted to these coastal zones.
NASA used its Terra satellite to observe Melor after it weakened into a trough of low pressure. The storm spread moisture over Luzon, with light to moderate precipitation falling on the island.
Tropical Storm Melor weakened as it moved through the Philippines, with NASA's Aqua satellite capturing an image of the storm on Dec. 16. The storm's center was difficult to pinpoint due to strong wind shear, which affected its rotation and movement.
Tropical cyclone Bohale's powerful thunderstorms were dropping rain at a rate of over 77 mm per hour near its center of circulation. A 3-D image created using GPM data showed the structure of precipitation within the storm, with thunderstorm tops reaching heights above 16.6 km.
Tropical Cyclone 05S formed over the Southern Indian Ocean, with NASA's Aqua satellite capturing its formation and development. The cyclone intensified into a tropical depression and then a tropical storm, but faces challenges including dry air and cooler sea surface temperatures that may weaken it.
Tropical Cyclone Tuni lost its tropical characteristics and became extra-tropical as it moved southeast in the Southern Pacific Ocean. The storm's maximum sustained winds decreased from 60.4 mph to 40 mph, with heavy rain falling at a rate of over 1.4 inches per hour.
Hurricane Sandra, the latest major hurricane on record in the Eastern Pacific, is forecast to make landfall in Western Mexico. It is expected to produce total rainfall accumulations of 1-3 inches over Baja California Sur, with isolated amounts reaching up to 10 inches.
Tropical Storm In-fa was becoming an extra-tropical storm as it tracked toward the island of Iwo To, Japan. The storm battled wind shear and retained hurricane-force winds, moving east-northeast at 12 knots.
Tropical Cyclone Annabelle was characterized by strong winds and high sea surface temperatures, but adverse conditions led to its demise. The storm's maximum sustained winds decreased to 35 knots on Nov. 24, indicating a lack of lift in the system.
Tropical Storm Annabelle formed on Nov. 21 with NASA's Terra satellite capturing its development, intensified winds reaching up to 67 mph/108 kph. The storm weakened on Nov. 23 as cloud tops warmed, indicating a decrease in convection and tropospheric height.
Tropical Storm Rick weakened into a post-tropical cyclone, with NASA's RapidScat instrument detecting strongest winds on its eastern side. The remnant low is expected to dissipate in a few days, with maximum sustained winds near 35 mph.
Tropical Storm 27W formed in the Marianas Islands, bringing warnings for Micronesia. The storm's center was located near latitude 4.7 degrees north and longitude 159.8 degrees east, with maximum sustained winds increasing to 40 mph.
NASA's GPM, RapidScat, and NOAA's GOES-East satellites observed former tropical cyclone Kate in the Northern Atlantic. The system exhibited intense storms with heavy rainfall and strong winds, peaking at category one hurricane strength on November 11, 2015.
Cyclone Chapala brought over a year's worth of rain to south-central Yemen, while Cyclone Megh made landfall with much lighter rainfall totals. Despite weaker winds, Megh caused more damage and fatalities on Socatra.
Extra-Tropical Storm Kate rapidly intensified off the US East Coast, producing hurricane-force winds before transitioning to an extratropical cyclone. As it moves northeast, Kate's winds are expected to weaken over the next few days, eventually being absorbed by another low-pressure system.
Tropical Cyclone Megh became the second cyclone to make landfall in Yemen in one week, with NASA's Terra satellite capturing its image. The storm had maximum sustained winds near 35 knots and was centered just 15 nautical miles northeast of Aden.
Tropical Cyclone Megh formed in Arabian Sea, moving west past Horn of Africa and into the Gulf of Aden. The storm is expected to make landfall in southeastern Yemen on November 10 with maximum sustained winds near 75 knots.
Tropical Cyclone Megh is intensifying as it approaches Socotra Island, Yemen, with forecasters predicting hurricane-strength winds before landfall. The storm's trajectory may be impacted by cooler waters and increasing wind shear in the Gulf of Aden.
Tropical Cyclone Chapala recently dissipated over Yemen, but another storm is now forming in the Arabian Sea. NASA's Global Precipitation Measurement mission detected this new system with scattered light to moderate rainfall falling at a rate of 23.3 mm per hour.
Tropical Cyclone Chapala made history as the first land-falling tropical storm in 30 years of record-keeping. The storm's maximum sustained winds were near 85 mph (140 kph) before rapidly weakening to 25 knots (28.7 mph/46.3 kph).
Cyclone Chapala is approaching landfall in central Yemen, with the GPM satellite analyzing heavy rain and wind speeds of up to 120mph. The storm is expected to weaken rapidly after landfall, dissipating by November 4.
NASA analyzed rainfall data from Tropical Cyclone Chapala in the Arabian Sea, revealing light to moderate precipitation near its center. The storm is forecast to strengthen into a Category 5 hurricane, with maximum sustained winds expected to reach 140 knots.
Tropical Cyclone Chapala strengthened into a hurricane on October 29 after developing an eye feature, with maximum sustained winds reaching 65 knots (75 mph). The storm is expected to intensify and make landfall in northeast Yemen on November 2 as it passes Socotra island.
Tropical Depression 26W was experiencing wind shear and speeding up as it transitioned from a tropical to an extra-tropical cyclone. The Joint Typhoon Warning Center expects the storm to continue weakening over open waters of the western North Pacific Ocean.
Tropical Storm Champi was over Guam and the Marianas Islands when NASA-NOAA's Suomi NPP satellite captured a visible image of the storm. The Visible Infrared Imaging Radiometer Suite (VIIRS) instrument showed strongest thunderstorms in its western quadrant and over Guam.
Tropical Storm 02P formed 300 miles from Fiji with NASA-NOAA's Suomi NPP satellite capturing visible images of the storm on October 16. The storm is moving south-southwest at 10 knots, with maximum sustained winds near 35 knots.
Tropical Storm Koppu is expected to make landfall in eastern Luzon, Philippines as a typhoon on October 17. The system's maximum sustained winds reached near 60 knots (69 mph/111 kph) on October 15.
Tropical Cyclone 03A formed on October 10 and weakened to a remnant low pressure area by October 12. NASA's Terra satellite captured visible images of the storm as it developed.
NASA-NOAA's Suomi NPP satellite spotted the 25th tropical depression in the northwestern Pacific Ocean on October 13. The depression is expected to strengthen into a tropical storm and pass near Guam by October 16.
Tropical Storm Oho weakened over cool waters and transitioned into an extra-tropical cyclone with strong wind shear, affecting its path. The storm moved over very cool waters near 22 Celsius, which is below the minimum temperature required to maintain intensity.
Choi-Wan, a powerful storm, lost its tropical characteristics and became an extra-tropical cyclone as it moved over cooler waters near the Kuril Islands. The storm maintained hurricane-force winds, with maximum sustained winds near 60 knots (69 mph/111.1 kph), while moving north at 38 knots (44.8 mph/72.2 kph) towards Japan.
Typhoon Choi-Wan showed strong thunderstorms with altitudes of up to 18.5 km, as revealed by NASA's GPM satellite. The storm was weakening but still dropping rain at rates over 66 mm/hour.
Tropical Depression 8C formed near Hawaii on October 3 and quickly weakened to a post-tropical cyclone. The GOES-West satellite captured its final image as it tracked west through the Central Pacific Ocean before dissipating.
The remnants of Tropical Cyclone Niala were captured in a NASA infrared satellite image taken on September 29, 2015. The storm had ceased to qualify as a tropical cyclone by the time it was located approximately 405 miles south of Honolulu, Hawaii and moving west-northwest.
NASA's RapidScat instrument identified Tropical Storm Dujuan's strongest side as the southeastern quadrant. The storm's maximum sustained winds were measured at 30m/s, equivalent to 67mph/108kph.
The Global Precipitation Measurement mission core satellite collected data on TD9's rainfall, revealing intense rain rates of 58.2 mm/hour and towering thunderstorms up to 14.9 km high. Tropical Depression Nine is expected to degenerate into a remnant low pressure area by Saturday, September 19.
The remnants of Tropical Storm Linda are spreading northward into northern Baja California and parts of the southwestern US, triggering shower and thunderstorm activity. Moisture from the remnant low is expected to bring increased risk of rip currents and dangerous high surf to Southern California coastline.
Tropical Storm Kilo was spotted brushing northern Japan's eastern side as it transitioned to an extra-tropical storm. Sea surface temperatures were dropping rapidly, helping the system lose its tropical characteristics.
Tropical Storm Jimena is being pushed west by strong vertical wind shear, affecting cloud top temperatures and thunderstorms. Forecasters expect the storm to gradually weaken over the next five days.
Tropical Storm Fred formed in the Eastern Atlantic and was tracked by NASA's Global Hawk. The storm weakened quickly under adverse atmospheric conditions, eventually losing its tropical cyclone status.
Typhoon Kilo, the westernmost tropical cyclone in a four-storm cluster, is moving southwest and has maintained an eye with thick thunderstorms. NASA's Aqua satellite captured an image showing Kilo's symmetry and indicating it will re-intensify over the next few days.
NASA's Aqua satellite captured an image of Hurricane Ignacio with a re-developed eye and thick thunderstorms. The storm is moving northwest towards the north on Friday, with maximum sustained winds near 75 mph.
Tropical Depression 14E appears as an asymmetric mass of clouds and thunderstorms due to southwesterly vertical wind shear. Maximum sustained winds are near 35 mph, with a potential for the depression to strengthen into a tropical storm.
Tropical Storm Fred has rapidly weakened to near 50mph due to increased wind shear and cooler sea surface temperatures. It is forecasted to become a tropical depression by late Wednesday, September 2, with potential dissipation by Friday.
Hurricane Ignacio strengthened to a hurricane after showing very cold cloud tops, indicating stronger uplift in tropical cyclones. The storm's maximum sustained winds increased to near 85 mph with forecasted peak strength on August 29.
Tropical Cyclone Atsani transitioning into an extra-tropical low with potential for heavy rainfall in eastern Russia. The Joint Typhoon Warning Center issued its final bulletin on August 26, predicting landfall south of eastern Russia.
Typhoon Goni covered the southern half of the Sea of Japan, with its center located near 35.3 North latitude and 131.0 East longitude. The storm was expected to weaken and become extra-tropical as it moved north, making landfall near Vladivostok, Russia on August 26.
The 2015 Atlantic season's first hurricane, Danny, was detected by NASA as it intensified into a tropical cyclone. The storm is moving west-northwest at 12 mph with sustained winds of near 75 mph.
Tropical Depression 12W intensified into a tropical storm after NASA's Terra satellite captured an organized storm with better circulation. The storm is forecast to weaken under Typhoon Halola's influence, moving slowly at 5 knots (5.7 mph/9.2 kph) towards the north.
Tropical Storm Felicia formed over 400 miles southwest of Baja California's southern tip on July 23, 2015. The storm strengthened into a tropical storm near latitude 19.1 North, longitude 114.9 West, with maximum sustained winds near 40 mph.
NASA satellite data shows Tropical Cyclone Halola getting stronger with strongest sustained winds appearing on the northeastern side as strong as 22 meters per second. The storm's cloud top temperatures are also getting colder, indicating more uplift or strength in the storm, potentially leading to heavy rainfall and thunderstorms.
NASA's RapidScat instrument and Europe's METOP satellite detected tropical-storm-force winds in the northwest quadrant of Cyclone Enrique. The storm was re-classified as a tropical storm on July 17, with maximum sustained winds near 40 mph (65 kph) and higher gusts.
NASA's RapidScat instrument detected tropical storm-force winds in Tropical Storm Enrique on July 16, contradicting a forecast that the system would weaken. The storm is moving west-northwest at 8 mph and may turn west by Friday.
Tropical cyclones require sea surface temperatures of at least 80 degrees Fahrenheit to maintain strength. Tropical Storm Enrique has moved into an area with temperatures below this threshold, leading to weakening and reduced winds.
Tropical Storm Enrique forms after satellite image analysis shows improved organization and convection. Maximum sustained winds reach near 40 mph with higher gusts, posing a threat to cooler sea surface temperatures and dry air in its path.