NASA tracks Tropical Storm Leslie's size and strength, forecasting heavy rainfall and strong winds. The storm is expected to bring significant wave activity to Atlantic Canada and New England coastlines.
The Global Precipitation Measurement mission analyzed rain rates in Hurricane Leslie, revealing light to moderate convective rainfall in the eye wall and over 1.8 inches of precipitation per hour on the northwestern side.
NASA's Aqua satellite gathered infrared light data showing Category 4 hurricane Sergio's intense cloud tops, which are colder than -87°F (-66.1°C), indicating a stronger storm. The National Hurricane Center forecasts little change in strength, but gradual weakening starting Friday.
Hurricane Walaka is battering the largest contiguous fully protected conservation area under U.S. flag, Papahānaumokuākea Marine National Monument. The storm's powerful thunderstorms have generated large surf and heavy rain potential.
NASA's IMERG combined data from multiple satellites and visible imagery to create a composite picture of Tropical Storm Kong-Rey in the Northwestern Pacific Ocean. The heaviest rain fell around the center and northwest, with winds decreasing to 60 knots.
NASA's Aqua satellite captured infrared data on Hurricane Sergio, revealing strong thunderstorms with cloud tops as cold as -80°F. The storm is a category 3 hurricane with maximum sustained winds near 115 mph, forecast to strengthen then weaken over the next few days.
ICESat-2 successfully fired its laser for the first time, sending photons to measure Antarctic height and detecting small changes in planet's ice sheets, glaciers, and sea ice. The mission will continue with procedures to optimize the instrument, aiming to start getting excellent science-quality data within a month after launch.
NASA's Aqua satellite captured infrared data showing Hurricane Leslie's strongest thunderstorms were fragmented and circling the center at minus 63 degrees Fahrenheit. The National Hurricane Center forecasts the hurricane will remain within favorable environmental conditions, allowing it to strengthen further.
The GPM core satellite measured rainfall rates within Typhoon Kong-Rey, revealing powerful storms in the northeastern eyewall producing over 1.4 inches of rain per hour. The Joint Typhoon Warning Center reports the storm is moving north-northwest towards Okinawa and Japan.
Hurricane Walaka is intensifying as a category 4 storm, with cloud top temperatures indicating strong thunderstorms capable of heavy rain. The hurricane is expected to turn toward the north-northeast with a faster forward motion, bringing powerful winds and potential weakening.
Cloud top temperatures are a crucial factor in determining the strength of hurricanes. NASA's Aqua satellite revealed extremely cold cloud tops around Hurricane Walaka, indicating potential for heavy rainfall. The storm is currently a Category 4 hurricane with maximum sustained winds near 155 mph.
A new computer simulation simulates the effects of general relativity on spiraling supermassive black holes, predicting predominant UV and X-ray light emission. The simulation suggests that gas in these systems will glow predominantly in these wavelengths when two supermassive black holes collide.
NASA's Aqua satellite observed Super Typhoon Kong-Rey with cloud top temperatures as cold as -85.2 degrees Fahrenheit, indicating strong storms capable of heavy rain. The typhoon is expected to encounter cooler sea surface temperatures by Oct. 3, affecting its trajectory and intensity.
NASA's Aqua satellite gathered water vapor content and temperature information from Tropical Storm Leslie, revealing highest concentrations of water vapor and coldest cloud top temperatures. The analysis indicates the storm has the potential to produce heavy rainfall, with maximum sustained winds near 65 mph.
Tropical Storm Sergio is expected to strengthen into a hurricane within the next 48 hours, according to NASA's Aqua satellite data. The storm's coldest cloud top temperatures have reached -70 degrees Fahrenheit, capable of generating heavy rainfall.
Tropical Depression Rosa's remnants brought heavy rainfall potential to east central Arizona on Oct. 2, with the strongest storms located over the region according to NASA's infrared view.
Tropical Storm Leslie has strongest storms northwest of its center, generating heavy rainfall. The storm is expected to strengthen and become a hurricane on October 2.
Tropical Storm Sergio is expected to strengthen into a hurricane by Wednesday, Oct. 3, according to the National Hurricane Center. NASA's Aqua satellite imagery reveals powerful storms with coldest cloud top temperatures near minus 70 degrees Fahrenheit.
Typhoon Kong-rey is moving northwest and intensifying steadily, peaking at 135 knots before weakening. The storm will eventually veer into the Yellow Sea after three days.
Hurricane Walaka strengthened into a powerful hurricane with intense convective storms and rainfall rates of up to 6.5 inches per hour. The Global Precipitation Measurement mission's data revealed a well-organized storm with rapid intensification forecasted through Tuesday.
Hurricane Rosa is weakening as it approaches the US southwest, with its clouds and rains stretching into Arizona. Infrared data shows that rainfall potential is high, and the storm's cloud tops are as cold as -63 degrees Fahrenheit.
Typhoon Trami was located about 157 miles west-southwest of Camp Fuji, Japan and moving northeast at 28 knots (32 mph/52 kph). Maximum sustained winds were near 75 knots (86 mph/139 kph) as it tracked very rapidly over Honshu.
Typhoon Trami displays symmetrical shape and large eye as it approaches Japan's southern islands. Maximum sustained winds reach near 90 knots, forecast to impact Okinawa Island and surrounding areas.
Hurricane Rosa's high water vapor content and cold cloud top temperatures indicate its potential for heavy rainfall, with the eye featuring a ring of storms around a 20 nautical mile-wide area. The storm is currently a Category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale.
Tropical Cyclone Liua was severely impacted by strong westerly to northwesterly vertical wind shear, causing the storm to lose its structure. The Joint Typhoon Warning Center issued the final bulletin on Liua, which was centered near 12.0 degrees south latitude and 161.1 degrees east longitude.
Tropical Storm Kirk brought intense rain to the Leeward Islands on September 28, with the heaviest downpours recorded near its center. The Global Precipitation Measurement mission detected hourly rainfall rates of up to 4 inches per hour, posing a risk of life-threatening flash floods and mudslides.
Hurricane Rosa shows a cloud-filled eye with two wrapping thunderstorm bands. The National Hurricane Center notes a defined eye structure beneath the overcast. Rosa is expected to strengthen and weaken before landfall in Baja California on Oct. 2.
Tropical Storm Kirk is regenerating in the Lesser Antilles, bringing intense convective activity and heavy rainfall. The NASA GPM core satellite detected strong radar echoes of over 60 dBZ, indicating intense precipitation falling at rates of over 69 mm/h.
Typhoon Trami showed a wide and ragged eye with deep convection and developing thunderstorms in NASA-NOAA's Suomi NPP satellite image on Sept. 27, 2018. The storm was located near latitude 22.2 degrees north and longitude 128.6 degrees east, with maximum sustained winds of 90 knots.
NASA's Aqua satellite detected Tropical Storm Liua in the southern Pacific Ocean with two strongest storm areas west and northeast of its center. The storms had cloud top temperatures as cold as minus 80 degrees Fahrenheit, capable of generating heavy rainfall.
Tropical Depression 29W has been issued a warning by the Joint Typhoon Warning Center, located near Iwo To off Japan's eastern coast. The storm is expected to strengthen but become extratropical in 24 hours, posing no immediate threat to land masses.
The James Webb Space Telescope has successfully connected its two halves, enabling them to communicate like they will in flight. This test was a significant step forward for the program and provided an opportunity for engineers to fix any issues before launch.
Typhoon Trami was imaged by NASA-NOAA's Suomi NPP satellite on September 25, showing a wide eye and convection patterns. Cloud top temperatures near 190 Kelvin indicate potential heavy rainfall.
NASA-NOAA's Suomi NPP satellite observed Tropical Storm Rosa strengthening into the Eastern Pacific's tenth hurricane. The storm is expected to become a major hurricane on Thursday, Sept. 27, with maximum sustained winds near 75 mph and rapid intensification forecast.
The Suomi NPP satellite observed Tropical Storm Kirk's regeneration east of the Caribbean Sea, prompting warnings and watches for the region. The storm strengthened to near 50 mph with higher gusts before expected weakening over the eastern Caribbean Sea.
The Global Precipitation Measurement mission provided an analysis of super typhoon Trami's heavy rainfall, including rates of over 120 mm per hour within intense storms. The Joint Typhoon Warning Center used GPM data to evaluate the storm's eyewall replacement cycle and predict its future movement.
NASA analyzed Subtropical Storm Leslie transitioning to a post-tropical storm with infrared satellite data, revealing strong storms with cold cloud top temperatures that can generate heavy rainfall. The western quadrant was suppressed by dry air, while the eastern and southeastern regions experienced stronger thunderstorms.
Tropical Storm Rosa is organizing in the Eastern Pacific with improved convective banding features. The storm has the capability to generate heavy rainfall due to cold cloud top temperatures near -80°F.
Subtropical Storm Leslie was found drifting in the North Central Atlantic Ocean by NASA's Terra satellite on September 24, 2018. The storm was characterized by patches of deep convection and organized moderate to deep convection. It is expected to strengthen by mid-week while interacting with a frontal system.
Super Typhoon Trami has a symmetric eyewall surrounding a 37 nautical-mile round eye, according to NASA's Terra satellite image. The storm is moving toward the wet-northwest with maximum sustained winds near 149.6 mph.
Tropical Storm Kirk formed on Sept. 22 but dissipated by Monday due to lack of closed circulation. The NOAA-20 satellite captured its peak visible image on the same day, revealing winds near 40 mph.
The TESS mission captured a detailed picture of the southern sky with its four wide-field cameras, while Parker Solar Probe and GOLD returned initial data on their instruments and science potential. The three missions offer new perspectives on exoplanets, solar activity, and space weather.
Tropical Storm Trami is expected to intensify through Saturday, bringing powerful storms with cloud tops as cold as minus 70 degrees Fahrenheit. A flash flood watch has been issued for Guam and the northern Marianas due to heavy showers and thunderstorms associated with the storm.
NASA used data from Super Typhoon Mangkhut to create a detailed map of the typhoon's rainfall. The analysis revealed heavy precipitation totals, including areas with over 700 mm of rain, and showed the storm's path through the western Pacific Ocean.
A recent NASA long-duration balloon mission captured high-resolution images of noctilucent clouds, revealing processes leading to turbulence. The mission aims to improve weather forecasting models by understanding the causes and effects of atmospheric gravity waves.
Fading Post-Tropical Cyclone Florence reveals strongest thunderstorms in the Mid-Atlantic and New England regions. Cloud top temperatures as cold as minus 63 degrees Fahrenheit are associated with heavy rainfall.
Tropical Depression Joyce's cloud top temperatures are as cold as minus 70 degrees Fahrenheit, generating heavy rainfall. The depression is forecast to weaken and become a remnant low over the next couple of days.
NASA's Aqua satellite captured a visible image of Tropical Depression 01S on September 17, revealing the storm's weakening state. The cyclone had maximum sustained winds of 30 knots and was forecast to dissipate soon, moving west towards Mauritius.
Typhoon Mangkhut made landfall in southern China's Guangdong province on Sept. 16, triggering a Red Alert and heavy rainfall. The storm brought strong winds of 92 mph/148 kph and surges up to 3 meters around Hong Kong.
Post-tropical cyclone Helene is affecting Ireland and the United Kingdom with widespread cloud cover and showers. The U.K. Meteorological Service has issued a Yellow Alert for several regions due to expected windy weather with gusts reaching 50-60 mph.