Dolphin, a tropical cyclone, transformed into an extratropical storm after passing east central Japan. The storm's wind speeds decreased to near 30 knots (35 mph) as it became quasi-stationary and fully embedded in the baroclinic zone.
Slow-moving post-tropical storm Beta continues to drop large amounts of rainfall in Texas as it moves into the Lower Mississippi Valley. The NASA satellite rainfall product estimated Beta's rainfall rates, with flash flood watches currently in effect across southeast Texas and southern Louisiana.
Tropical Storm Lowell is moving west-northwest with increasing winds and no coastal watches in effect. NASA's Aqua satellite identified the strongest thunderstorms south of the storm's center, indicating potential for heavy rainfall. The storm's forecast suggests little change in strength over the next few days.
Tropical Storm Dolphin battled intense wind shear as it approached east central Japan. Despite strong vertical wind shear, the storm remained consolidated with strong thunderstorms and a low-level circulation center. NASA's Terra satellite captured visible images of the storm, providing valuable data for hurricane research.
Paulette formed as Tropical Depression Seventeen and became a hurricane, then weakened into a post-tropical cyclone. NASA's Terra satellite found only one small area of convection with cloud top temperatures as cold as minus 50 degrees Fahrenheit.
Post-tropical cyclone Teddy is generating heavy rainfall over eastern Canada, causing destructive waves and strong winds. NASA estimated rainfall rates around the center of circulation at 5-15 mm per hour, with heavier precipitation expected throughout most of the storm.
Tropical Storm Paulette reformed in the central North Atlantic Ocean, with estimated rainfall rates of up to 5mm per hour. NASA's IMERG satellite product provided near-real-time rainfall estimates, showing the storm's intensification and potential impact on the region.
Tropical Storm Dolphin is moving northward and is expected to weaken gradually before becoming extra-tropical near Tokyo. NASA's Terra satellite captured visible imagery of the storm on September 22, revealing strong storms and thunderstorms in its northeastern quadrant.
Tropical Storm Lowell's strongest storms were located around its center and southern quadrant, with cloud top temperatures as cold as minus 80 degrees Fahrenheit. Wind shear played a significant role in the storm's formation and strength, with NASA providing data to support forecasters' predictions.
Tropical Storm Beta is expected to stall inland over Texas today, bringing heavy rains and flash flooding. NASA's Aqua satellite analyzed the storm using infrared data, revealing coldest cloud top temperatures as cold as minus 63 degrees Fahrenheit.
A new study using satellite images tracked the Arctic tundra's vegetation changes over decades and found it has become greener due to warmer air and soil temperatures. This 'Arctic greening' is associated with higher soil temperatures and moisture, impacting local ecosystems and wildlife.
Hurricane Teddy is threatening Eastern Canada with powerful storms and cold cloud top temperatures indicating strong storms. The hurricane's forecast track predicts it will move over Nova Scotia on Wednesday, bringing tropical-storm-force winds and large swells.
Researchers use NASA's IRIS mission to spot nanojets in the solar corona, revealing a potential coronal heating candidate: nanoflares. The observations confirm that nanojets are a telltale signature of magnetic reconnection and nanoflares contributing to coronal heating.
Hurricane Teddy's rainfall rates were estimated at around 30 mm per hour near the center of circulation, with heavier rain showers expected across Atlantic Canada between Tuesday and Thursday. The storm is forecasted to transition into a powerful post-tropical cyclone, posing risks of wind, rain, and storm surge impacts.
The NASA-NOAA Suomi NPP satellite found Post-Tropical Storm Alpha's remnants covering Portugal and northwestern Spain, following its short-lived formation and landfall in Portugal. The storm had degenerated to a post-tropical remnant low by Sept. 18.
Tropical Storm Dolphin formed from Tropical Depression 14W, strengthening with deep convection and organized thunderstorms. The storm is expected to move north and then northeast, potentially strengthening to 55 knots.
Wilfred weakened into a trough in the Central Atlantic Ocean, with maximum sustained winds near 35 mph and forecasters expect winds to continue decreasing. The system's interaction with an upper-level trough led to linear thunderstorm development.
Hurricane Teddy generated up to 30 mm of rain per hour on its western side, with heavier rainfall expected near Bermuda. The storm is moving northwestward, increasing the risk of strong winds, storm surge, and heavy rainfall.
Tropical Storm Noul made landfall in central Vietnam on Sept. 17 and was weakening as it moved toward Thailand. The Suomi NPP satellite captured an image of the storm over Laos, showing a shapeless appearance with a difficult-to-find low-level center.
Tropical Storm Wilfred formed in the Eastern Atlantic Ocean on September 18, marking the end of the 2020 hurricane season. The storm is generating heavy rainfall rates, with estimates suggesting up to 30 mm per hour around its center.
Tropical Depression 22 is strengthening in the Gulf of Mexico, with NASA-NOAA's Suomi NPP satellite providing infrared images. The depression is forecast to move slowly and could strengthen into a hurricane by Sunday.
Subtropical Storm Alpha has formed near Portugal, with NASA's Aqua satellite capturing visible imagery of the storm. The storm is expected to move across the coast of west-central Portugal, producing 1-2 inches of rainfall and rapid weakening over land. Maximum sustained winds are near 50 mph, with higher gusts.
Tropical cyclone Noul is characterized by hundreds of thunderstorms, with infrared data revealing the strongest storms are located at high altitudes. NASA's MODIS instrument detected cold cloud top temperatures as low as minus 80 degrees Fahrenheit near Noul's center.
NASA used satellites to estimate Hurricane Sally's rainfall and create a flood warning map. The storm generated high rainfall rates near its core, resulting in widespread flooding along the Gulf Coast.
Tropical Depression Vicky is a shadow of its former self, devoid of precipitation around its low-level center. The cyclone's strengthening wind shear has caused it to weaken and become a remnant low later today.
NASA's Hubble Space Telescope has captured a crisp new image of Jupiter's storms, revealing a bright white plume traveling around the planet at 350 miles per hour. The Great Red Spot, currently an exceptionally rich red color, is shrinking in size and appears to be interacting with surrounding clouds.
Hurricane Teddy's satellite appearance steadily developed overnight, with a ragged warming eye surrounded by convection. The storm is moving northwest at 12 mph, expected to continue for days, with maximum sustained winds of 120 mph.
Tropical Storm Karina is weakening due to unfavorable upper-level winds and cooler waters, forecast to become a remnant low by tonight. Its maximum sustained winds are near 40 mph with higher gusts, moving toward the northwest at 8 mph.
Paulette's transformation into an extra-tropical storm revealed by NASA imagery, with visible clouds and wind circulation. The system is expected to weaken over the next couple of days, but still poses a threat to Atlantic Canada and the US east coast with life-threatening surf conditions.
Tropical Storm Vicky is weakening due to strong southwesterly wind shear, with maximum sustained winds near 50 mph and higher gusts. The storm is expected to become a tropical depression in around 24 hours before weakening further.
NASA's Aqua satellite detected the strongest storms on Hurricane Teddy's western side, with coldest cloud top temperatures as low as -81 degrees Celsius. This suggests that the storm is experiencing westerly wind shear, a phenomenon that can lead to heavy rain.
Tropical Storm Noul is intensifying in the South China Sea, forecast to strengthen into a typhoon before landfall in central Vietnam. NASA's Suomi NPP satellite captured visible images of the storm on September 16, showing building convection and clouds obscuring its low-level circulation center.
Hurricane Sally made landfall near Gulf Shores, Alabama as a Category 2 hurricane with maximum sustained winds of 105 mph. Heavy rainmakers were detected north of the eye, with cloud top temperatures reaching -80 degrees Fahrenheit.
Scientific research predicts large increases in mercury concentrations in Yukon River fish and water under high carbon emissions scenarios. For the low-emissions scenario, mercury concentrations are expected to increase by only about 14%.
NASA's Aqua satellite captured a visible image of Tropical Depression Rene as it was dissipating in the central North Atlantic Ocean. The storm opened into a trough of low pressure and dissipated over several hours.
NASA's Aqua satellite found structural changes and the strongest side of Hurricane Paulette as it moved away from Bermuda. The storm is expected to undergo extratropical transition, weakening rapidly on Wednesday.
Teddy is consolidating in the Central North Atlantic Ocean with improved circulation and increasing maximum sustained winds. The storm's structure is slowly improving, with stronger thunderstorms around its core.
Tropical Storm Vicky is weakening due to strong southwesterly wind shear pushing its clouds to the northeastern quadrant. The storm's shape and organization are being distorted, and it is forecast to degenerate into a remnant low by Wednesday.
Hurricane Sally is expected to produce 10-20 inches of rainfall with isolated amounts of 30 inches along the central Gulf Coast. The storm's slow movement increases the risk of historic flooding and extreme life-threatening flash flooding, particularly in Florida and the southeastern United States.
Tropical Storm Karina became slightly better organized with deep convection near its center. The storm is forecast to move over cooler waters and into a drier atmosphere, leading to weakening trends and eventual dissipation. Maximum sustained winds were near 60 mph, with gusts expected to be higher.
Tropical Storm Karina is being affected by strong northeasterly wind shear, pushing clouds and rain to the southwest. This analysis reveals coldest cloud top temperatures as cold as -70 degrees Fahrenheit, indicating potential for heavy rainfall.
Hurricane Paulette's large eye is approaching the island of Bermuda, prompting a Hurricane Warning. The storm has maximum sustained winds of near 90 mph and is expected to pass over the island during the next couple of hours.
Tropical Depression Rene is expected to degenerate due to strong wind shear and dry air entrainment. The NASA Aqua satellite monitored cloud top temperatures, confirming the impact of wind shear on the storm's organization and strength.
Tropical Depression 20 strengthened into Tropical Storm Teddy, breaking a hurricane season record. The storm is expected to become a major hurricane later in the week, with life-threatening surf and rip current conditions forecasted for the Lesser Antilles.
NASA uses infrared data from the Aqua satellite to analyze low-pressure areas developing in the eastern Atlantic Ocean. The data reveals cloud top temperatures as cold as minus 63 degrees Fahrenheit, indicating strong storms capable of heavy rain.
Wildfires have ravaged western states, with over 3.1 million acres burned in California alone. Climate experts blame drought, heat, and strong winds for the disaster.
Tropical Storm Paulette's unique shape is attributed to the strong southwesterly wind shear affecting it and its companion storm, Rene. Infrared imagery reveals powerful thunderstorms with cloud top temperatures as cold as minus 80 degrees Fahrenheit.
Tropical cyclones affected by wind shear can appear less than round, with outside winds pushing clouds and rain to one side. Infrared data reveals cold cloud top temperatures indicating heavy rain potential
Astronomers have discovered a discrepancy between theoretical models and Hubble observations of galaxy clusters, suggesting a potential gap in our understanding of dark matter. The study used unprecedentedly detailed observations to map the distribution of dark matter on small scales.
Aerosols from western fires detected by NASA's Terra instrument pose a significant threat to climate and human health. High concentrations of aerosols can reduce visibility, impact respiratory systems, and exacerbate cardiovascular issues.