Tropical Storm Maria weakened to a tropical storm on Sept. 28, with NASA monitoring its trajectory. The storm showed signs of strength in infrared light, but its cloud top temperatures indicated a capacity for heavy rainfall.
Hurricane Maria appears asymmetric due to vertical wind shear, with eastern clouds receiving more precipitation than the western side. GPM radar data shows light rain showers around the eye, but stronger storms are located northeast of the center.
A NASA satellite detected a strengthening Hurricane Lee, with colder cloud top temperatures indicating stronger storms. The storm's eye cleared out and warmed, while the eyewall cloud tops cooled to -81.4 degrees Fahrenheit, suggesting heavy rainfall potential.
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.
NASA's Aqua satellite provided infrared data on Hurricane Maria, revealing the coldest cloud tops and strongest storms were located in the eastern quadrant, which could produce heavy rainfall. The storm is expected to weaken due to cooler sea surface temperatures.
Tropical Storm Lee strengthened into a tiny hurricane after being forgotten following Hurricane Irma and Maria's impact. It is expected to move west and northeast over open ocean waters, with maximum sustained winds near 90mph.
Tropical Depression 22W formed in the South China Sea on Sept 23 and moved across Hainan into northern Vietnam before making landfall. The depression was short-lived, existing for only two days before dissipating over the next day or two.
Tropical Storm Pilar formed off Mexico's coast on September 23 and continued to make landfall as a tropical depression. NASA's satellite imagery captured the storm's strong thunderstorms and cloud top temperatures, indicating potential for heavy rainfall and flooding in affected areas.
The Suomi NPP satellite analyzed Hurricane Maria in visible and infrared light, revealing intense rainfall bands with rates of over 6.57 inches per hour. The satellite's data helped forecasters predict storm track and strengthen, with Maria expected to become a tropical storm by Tuesday night.
The MODIS instrument aboard NASA's Aqua satellite found cloud top temperatures of strong thunderstorms in Maria's quadrant as cold as or colder than minus 80 degrees Fahrenheit. This indicates that Maria has the capability to create heavy rain, posing a threat to coastal areas.
Post-Tropical Cyclone Jose is continuing to weaken off the New England coast, with maximum sustained winds near 45 mph. The storm's slow southeastward drift will impact Bermuda and the US east coast, causing dangerous surf and rip current conditions.
Hurricane Maria continues to move in a northerly direction with an asymmetric distribution of convection due to southwesterly vertical wind shear, according to NASA. The storm's eye became filled with high clouds on September 22 before clearing again on the next day.
NASA-NOAA's Suomi NPP satellite provided a thermal image of Hurricane Maria, revealing the strongest sides of the storm. The National Weather Service reported heavy rain causing flooding in eastern Puerto Rico, with flood warnings issued until 5:45 p.m. EDT.
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.
Fires have broken out in areas previously burned by previous fires, highlighting the ongoing risk of wildfires in Australia. Heavy rainfall and overgrowth have created fire conditions that can spread quickly, putting new areas at risk.
NASA's Aqua satellite captured an image of large Tropical Storm Jose south of Cape Cod, Massachusetts, showing a defined center of circulation. The storm is expected to continue meandering off the coast of southeast New England for several days.
NASA used a fleet of satellites to measure Hurricane Maria's rainfall, estimating totals greater than 10 inches (254 mm) along its track. The storm caused catastrophic flooding in Puerto Rico, with extreme flooding reported in San Juan and the capital city.
Tropical Storm Jose is a large storm with strongest storms in its northeastern part, causing dangerous ocean conditions from Bermuda to the US East coast. Infrared data from NASA's Aqua satellite shows cloud top temperatures around minus 50 degrees Fahrenheit, indicating weaker storms.
Engineers aligned NASA's James Webb Space Telescope's 18 hexagonally shaped primary mirror segments using a multi-wavelength interferometer and seven actuators to achieve precise alignment. The ability to adjust the mirror segments' positions and shapes is critical for accurate focus on celestial targets.
The Global Precipitation Measurement mission found extreme storms within Hurricane Maria's feeder bands were dropping rain at an hourly rate of greater than 5.4 inches. The hurricane made landfall on Sept. 20 near Yabucoa, Puerto Rico, with maximum sustained winds reported to be 149.5 mph.
Hurricane Jose is slowly moving northward off the U.S. East Coast, producing dangerous surf and rip currents along the coast of North Carolina and Long Island. The storm's movement and strength are being closely monitored by NASA's GPM satellite and NOAA's GOES East satellites.
Tropical Depression Norma has a smaller area of strong storms, with cloud top temperatures as cold as -63 degrees Fahrenheit, indicating potential for heavy rainfall. The depression is weakening and expected to degenerate into a remnant low on Wednesday, moving westward towards Mexico.
Hurricane Maria strengthened to a Category 5 storm due to rapid updrafts in the eyewall, creating a tall thunderstorm cell known as a 'hot tower.' The NASA GPM satellite provided 3-D imagery of the storm, while the Aqua satellite analyzed cloud top temperatures indicating strong storms capable of heavy rain.
Cyclone Otis has been devoid of deep convection for about 10 hours, indicating a compact swirl of low-level clouds without generating precipitation. The storm is expected to dissipate due to cool sea surface temperatures and dry air within a day.
Hurricane Jose is producing dangerous surf and rip currents along the US east coast, with Tropical Storm Warnings and Watches in effect for several states. Satellite imagery shows the storm's asymmetric cloud pattern, indicating it is losing some tropical characteristics.
Tropical Storm Norma is bringing rough ocean conditions and rain to Baja California, Mexico. The National Hurricane Center warns of life-threatening surf and rip current conditions due to the storm's proximity to the coast.
NASA's Suomi NPP satellite captured an image of Hurricane Otis showing a unique pinhole eye surrounded by powerful thunderstorms. The storm's wind field is extremely compact, with hurricane-force winds extending only 25 miles from the center.
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.
Hurricane Maria strengthened into a major hurricane with cloud top temperatures as cold as minus 81.6 degrees Fahrenheit, indicating heavy rainfall potential. The storm is expected to move across the Leeward Islands and approach Puerto Rico and the Virgin Islands.
Tropical Storm Talim made landfall on Kyushu, Japan, weakening to an extra-tropical storm. The NASA-NOAA Suomi NPP satellite captured images of the storm after its transition, revealing a frontal system with clouds north and northeast of the center.
Tropical Storm Norma was located near 18.7 degrees north latitude and 109.7 degrees west longitude, with an elongated band of thunderstorms around its center, 85 miles east of Socorro Island.
Tropical Depression 14E has formed in the Eastern Atlantic Ocean, moving towards the west-northwest at 10 mph. The depression has maximum sustained winds of near 35 mph and is forecasted to become a tropical storm Lee by later today.
NASA's Aqua satellite captured Hurricane Max making landfall and quickly weakening, with the storm degenerating into a large area of low pressure. The coldest cloud tops were found around the center of circulation and over the coast of Guerrero state, indicating storms that reached high into the troposphere and generated heavy rain.
Tropical Storm Jose is producing high surf and life-threatening rip currents along the U.S. East coast, with swells affecting Bermuda, the Bahamas, and Puerto Rico. The storm is forecast to become a hurricane in the next 48 hours, with maximum sustained winds near 70 mph.
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.
Typhoon Doksuri made landfall in eastern Vietnam, with maximum sustained winds near 80 knots. The storm was centered near 17.9 degrees north latitude and 106.0 degrees east longitude, about 174 miles northwest of Da Nang.
Typhoon Talim's large eye was a distinctive feature in NASA's 3D image, showing intense rainfall on the western side and weaker rain to the east. Wind shear has pushed the upper-level eye northwest of the lower-level eye, with strongest storms on the western side.
Tropical Depression 15E is experiencing vertical wind shear due to the GOES-West satellite's observations. The National Hurricane Center expects no change in strength, but a chance for it to become a tropical storm in the coming days.
The Robotic External Leak Locator (RELL) successfully located a small ammonia leak on the International Space Station, confirming its safety status and avoiding a risky spacewalk. The instrument provided precise measurements of gas amounts and types, allowing operators to isolate and repair the leak.
Tropical Storm Norma has formed in the Eastern Pacific, with NASA's Terra satellite capturing its development. The storm is expected to strengthen over the next 48 hours and could become a hurricane by late Friday.
Typhoon Talim's powerful storm system was observed by NASA's Terra satellite on Sept. 14, revealing a large open eye surrounded by intense thunderstorms. The storm is expected to make landfall in Japan and move northwards, prompting warnings from China and Japan.
Typhoon Doksuri appeared well-rounded and organized on satellite imagery as it moved through the north central South China Sea toward Vietnam. The storm had maximum sustained winds near 85 knots (97.8 mph) and was expected to make landfall south of the city of Vinh on the coast of Vietnam on September 15.
The Suomi NPP satellite captured an image of Hurricane Max on Sept. 13, revealing two 'tails' of thunderstorms feeding into the low-level center. Maximum sustained winds reached near 75 mph (120 kph), with higher gusts and a minimum central pressure of 992 millibars.
Hurricane Jose was found to have extremely intense downpours within its powerful convective storms, with rain falling at rates of over 8.9 inches per hour. The GPM satellite's 3D cross-section revealed storm tops reaching altitudes greater than 10.85 miles high.
NASA's Terra satellite and NOAA's GOES East satellite monitored the movement of Irma's remnant clouds, tracking their path across the Midwest, Pennsylvania, New England, and upstate New York. The low-pressure system associated with the remnants is expected to slide off the U.S. East coast on Friday.
Researchers use NASA satellite data to predict malaria outbreaks in the Amazon Rainforest by tracking mosquito breeding grounds and human movement. The tool combines land surface modeling, vegetation maps, and deforestation data to identify areas at high risk of outbreaks.
Hurricane Jose is being affected by strong northerly vertical wind shear as it makes a slow clockwise loop in the Atlantic Ocean. The storm's low-level center is located at the northern edge of a large area of thunderstorms.
Tropical depression 21W strengthened into tropical storm Doksuri, exhibiting fragmented feeder bands of strong thunderstorms. NASA's Aqua satellite captured images of the storm as it moved west in the South China Sea and intensified over the next day and a half.
The NASA-NOAA satellite captured images of Hurricane Irma's remnant clouds and rains covering a quarter of the continental US. The satellite data showed the extent of the storm's impact, with moderate to locally heavy rain expected in the Mid-South and Southeast regions.
Typhoon Talim produces heavy precipitation in the northwestern Pacific Ocean, with storms dropping rain at rates of over 76 mm/hour and 120 mm/hour. The typhoon is expected to intensify as it moves towards Japan, with winds forecast to reach 115 knots.