A joint NASA-JAXA mission observed two persistent hot towers south and east of Hermine's center, influencing its strengthening. Repeated cloud-top height measurements suggested these towers, lasting 9-12 hours, could eject energy into the atmosphere.
Tropical Depression Madeline showed a small burst of strength with strong thunderstorms developing near its center. Cloud top temperatures indicated storms stretching high into the troposphere and generating heavy rain.
Typhoon Namtheun is expected to make landfall in Japan's Kyushu island on Sept 3, with maximum sustained winds near 115 mph. The storm has a small eye surrounded by powerful thunderstorms and is moving north at 7 mph.
Tropical Cyclone Gaston has weakened significantly, with its eye disappearing and clouds pushed to the northeast. Warnings have been issued for several islands in the Azores, including Flores and Corvo, Faial, Pico, Graciosa, Sao Jorge, and Terceira.
Hurricane Lester has moved into the Central Pacific Ocean, prompting new hurricane watches for Hawaii. The storm is expected to bring powerful thunderstorms and heavy rains to the islands on Saturday.
Tropical Storm Hermine strengthened and organized in the Gulf of Mexico, with intense storms detected by NASA's Global Precipitation Measurement mission. Rainfall rates reached over 9.9 inches per hour in powerful storms southwest of the storm's center.
Tropical Storm Madeline has weakened to a tropical storm with maximum sustained winds near 65 mph, passing just south of Hawaii's Big Island. The storm is expected to continue moving west at 14 mph and weaken further over the next 48 hours.
Tropical Depression 8 dissipated about 400 miles east of Cape Hatteras, North Carolina, as indicated by NASA's Terra satellite. The system's remnants showed strong convection and rapid cloud top cooling, suggesting potential heavy rainfall.
Hurricane Gaston is maintaining its eye despite a degraded satellite appearance, according to NASA. The storm is expected to weaken further as it approaches the Azores Islands, with maximum sustained winds decreasing to near 85 mph.
Satellites show Hurricane Madeline has weakened from a Category 4 storm to a Category 1 storm as it approaches Hawaii. The storm is expected to bring tropical storm conditions, heavy rainfall, and storm surge to the islands, with the potential for dangerous flash floods and mudslides.
NASA analyzed Tropical Depression 8 using infrared and visible light, finding cloud top temperatures exceeding minus 63 degrees Fahrenheit. The depression is moving northeast at 15 mph with a possible strengthening into a tropical storm later today.
The Global Precipitation Measurement mission tracked Hurricane Lester as it continued through the Eastern Pacific Ocean, showing extremely heavy rainfall rates of over 7.1 inches per hour. The satellite also revealed a strong hurricane with maximum sustained winds near 140 mph and estimated minimum central pressure of 948 millibars.
Hurricane Gaston has a large cloudless eye surrounded by powerful thunderstorms, according to NASA's Suomi NPP satellite. The storm is moving northeast at 9 mph and may affect the Azores Islands later in the week.
Tropical Depression 9 is bringing torrential rains to western Cuba and issuing a tropical storm watch for parts of the Florida Gulf Coast. Infrared data indicates extremely cold cloud tops, indicating heavy rainfall potential.
NASA satellites captured images of Hurricane Lester as it weakened to a Category 3 hurricane on August 30. The storm showed signs of weakening due to decreased deep convection within its central dense overcast. Forecasters predict continued westward movement before the storm turns northwest.
Tropical Depression 8 is located just 85 miles south-southeast of Cape Hatteras, North Carolina, with maximum sustained winds of 35 mph. The depression is forecast to produce total rain accumulations of 1-3 inches with isolated amounts up to 5 inches.
Tropical Storm Lionrock weakened rapidly after passing over Hokkaido, Japan. The storm's cloud top temperatures were as cold as minus 60 degrees Fahrenheit.
Hurricane Lester is the fourth major hurricane of the 2016 eastern North Pacific hurricane season. It has strengthened into a Category 3 hurricane with maximum sustained winds near 115 mph and is expected to move westward for the next couple of days.
Tropical Depression 9 has intensified in the Gulf of Mexico, with deep convection and intense rainfall observed. The National Hurricane Center forecasts strengthening and a possible storm surge for northern Florida.
Tropical Depression 8 formed off the coast of North Carolina in the Atlantic Ocean, with NASA's Global Precipitation Measurement mission providing detailed analysis. The depression was predicted to strengthen slowly over the next 48 hours, bringing heavy rainfall and isolated maximum amounts of 5 inches to far eastern North Carolina.
Tropical Storm Madeline in the Central Pacific Ocean has strengthened into a hurricane, according to NASA-NOAA's Suomi NPP satellite imagery. The storm is showing signs of organization, with a well-formed eyewall and little vertical wind shear deformation.
Hurricane Gaston is a Category 3 hurricane with maximum sustained winds near 115 mph, located about 575 miles east of Bermuda. The storm is expected to move over decreasing sea surface temperatures and into increasing vertical wind shear, causing a gradual weakening.
Typhoon Lionrock is weakening as it approaches Japan, with maximum sustained winds of 80.5 mph and waves up to 26 feet high.
System 99L is a tropical low pressure area located over Hispaniola, producing disorganized shower and thunderstorm activity. Heavy rainfall, flash floods, and mudslides are likely over the region, with conditions becoming more favorable for development early next week.
Typhoon Lionrock is a powerful storm with maximum sustained winds of 105 knots, forecast to make landfall near Tokyo on August 30th. Its intensity track remains uncertain, with some predicting it will weaken and others that it will remain strong.
Tropical Storm Lester, the 12th named storm of the 2016 eastern Pacific Ocean, was analyzed by NASA's GPM core satellite. The storm showed moderate intensity bands of rain curving around its eastern side, with rainfall rates reaching over 54 mm per hour.
NASA's AIRS and Suomi NPP satellites are monitoring Tropical Storm Gaston's weakening position in the Atlantic. The storms expected to strengthen over the next 48 hours, with forecasters warning of increased winds and potentially tighter storm structure.
Typhoon Lionrock intensified as it passed over the western edge of its eye, with GPM measuring intense storms and rainfall rates exceeding 222 mm/hour. The typhoon's wind speeds increased to 126.6 mph, making it a category three on the Saffir-Simpson scale.
NASA's Aqua satellite analyzed Tropical Depression 13E with its Atmospheric Infrared Sounder instrument, indicating strengthening thunderstorms and cold cloud tops. The depression is expected to continue strengthening over the next couple of days, potentially becoming a hurricane.
A tropical wave is bringing heavy rainfall and gusty winds to islands in the Atlantic Ocean and northeastern Caribbean Sea. The National Hurricane Center predicts that the system could develop into a tropical depression, posing danger to the Bahamas and southeastern United States.
Gaston became a hurricane on Aug. 25 with maximum sustained winds of 75 mph, but heavy rain rates of around 50 mm/h were occurring near the center due to southwesterly wind shear. The storm's trajectory is expected to shift northwestward over the next several days as it battles strong environmental wind shear.
Tropical Depression 14W was absorbed by System 92W, with maximum sustained winds near 23 mph, moving north-northeast at 33.3 mph. The system is located near Iwo To Island, Japan, and will track northwestward
Tropical Depression 14W formed as a weak storm with isolated strong storms and a low-level center, but persistent wind shear prevented intensification. The storm is expected to move north and dissipate within 4-5 days.
Typhoon Lionrock strengthened to a typhoon, developing an eye with powerful thunderstorms, according to NASA-NOAA Suomi NPP satellite data. The storm was moving southwest before expected to turn onto a northeasterly course.
Tropical Storm Gaston intensified in the Atlantic Ocean with rainfall rates reaching up to 141 mm per hour. The GPM satellite provided detailed measurements of precipitation, cloud heights, and storm tops.
The Global Precipitation Measurement mission captured data on Tropical Depression Kay's remaining rainfall, which was limited to a small area. The storm had been devoid of deep convection and thunderstorms for about 12 hours when it faded from the record.
Tropical Storm Lionrock is consolidating and strengthening under NASA's Terra satellite imagery. The storm has tracked south-southwestward at 5.7 mph, with maximum sustained winds near 63 mph.
NASA's Aqua Satellite observed Tropical Depression Kay devoid of thunderstorms as it passed overhead on August 23. The depression was fueled by cool waters near Baja California, but lacked sufficient convection to sustain storms.
Tropical Storm Gaston formed in the northeastern Atlantic Ocean after a low-pressure area organized into a depression on August 22. By August 23, the system strengthened into a tropical storm with maximum sustained winds of near 50 mph and higher gusts.
Tropical Depression Fiona has weakened into a post-tropical depression, with maximum sustained winds decreased to near 30 mph. The low pressure area is expected to move northwestward and then westward, gradually weakening over the next couple of days.
A new tropical depression has formed north of Guam, prompting a tropical storm warning for nearby islands. The depression is expected to track northward, bringing strong winds and heavy rainfall to the area.
Tropical Storm Lionrock heads south-southeastward towards Japan while Tropical Storm Mindulle makes landfall just south of Tokyo and then moves northwards. Both storms exhibit improved circular shapes after NASA-NOAA's Suomi NPP satellite capture on Aug 21.
Tropical Storm Fiona weakened significantly as NASA-NOAA's Suomi NPP satellite captured its image on Aug. 22. The storm's clouds were pushed east by strong westerly shear, leading to a decrease in organization and thunderstorm activity.
Tropical Storm Lionrock showed a large low-level center with shallow and weak thunderstorms wrapping into an ill-defined center. The storm was moving southwestward at 14.9 mph, with the strongest winds in its northern quadrant.
Tropical Storm Kay's strengthening is attributed to strong convection, with cold cloud top temperatures exceeding minus 63 degrees Fahrenheit. Forecasted to pass near Mexico, the storm will then weaken and turn westward into the Eastern Pacific.
Arctic sea ice cover is still declining despite slower melt rates, scientists say. The new normal for sea ice extent is expected to remain low due to extreme weather conditions.
Tropical Depression 10W has formed near Guam with strong thunderstorms and cold top temperatures, generating potential for heavy rainfall. The storm is expected to continue moving north-northwestward over the next several days, potentially intensifying into a minimal tropical storm by August 22-23.
Tropical Storm 12W formed over the open waters of the Northwestern Pacific Ocean on August 18, 2016. The storm was spotted by NASA's Aqua satellite and has tracked northwestward at 16.1 mph, expected to intensify into a typhoon near Japan
The Blue Cut Fire in California is a rapidly growing wildfire that poses an imminent threat to public safety, rail traffic, and structures in several areas. The fire has already affected over 82,000 people and damaged an estimated number of structures, with firefighters battling hot, dry, and breezy conditions.
Tropical Storm Fiona is strengthening in the northeastern Atlantic Ocean, with maximum sustained winds of near 45 mph. The storm's movement and pressure are expected to continue west-northwest for the next couple of days.