Hurricane Leslie has formed in the Atlantic with strong storms circling its center, revealing temperatures as low as -63 degrees Fahrenheit. The National Hurricane Center forecasts some additional strengthening over the next day or so, with a northward motion expected to begin tonight.
Hurricane Michael continues to strengthen with maximum sustained winds reaching near 100 mph, forecasters predict a major hurricane upon landfall in Florida. The storm's center is expected to move across the eastern Gulf of Mexico and inland over the Florida Panhandle on Wednesday.
NASA's Aqua satellite observed Hurricane Sergio with infrared light, revealing warmer cloud top temperatures on the western half of the storm. This indicates weakening of the storm's uplift, but a well-defined inner-core remains despite slow weakening.
NASA analyzed rainfall and structure of Hurricane Michael as it developed, forecasting a major hurricane for Florida landfall. The Global Precipitation Measurement mission revealed intense rainfall accumulation totals over the Caribbean Sea, with estimates reaching 12.6 inches in some areas.
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.
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.
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.
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.
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.
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.
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 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.
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'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.
A study suggests that a warmer tropical Atlantic and increased greenhouse gas concentrations may have driven the 2017 Atlantic hurricane season. The researchers predict higher numbers of major hurricanes in future seasons, with a continued risk over the Caribbean, US Coast, and northern North Atlantic.
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.
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.
Hurricane Florence made landfall near Wrightsville Beach, North Carolina, bringing estimated maximum winds of 90 mph and a minimum central pressure estimate of 958 millibars. The storm's infrared imagery showed the power and extent of its massive storm system.
Hurricane Florence's powerful winds and storm surge are being closely monitored by NASA. The satellite images reveal a weakened eye due to southern shear, with cloud tops as cold as -80F (Celsius). This suggests potential for heavy rainfall.
Hurricane Helene is decoupling from wind shear due to southwesterly vertical wind shear, pushing the bulk of the storm away from its rotating center. The NHC expects wind shear to increase on Sept 13, potentially weakening the storm further.
Hurricane Florence is approximately 400 miles in diameter, with cloud top temperatures of -80F indicating heavy rainfall capability. The storm has the potential to produce extremely dangerous conditions, including life-threatening storm surges and rainfall exceeding 20 inches in coastal North Carolina.
Scientists monitored hurricane water vapor to gauge potential for intense rainfall; analysis shows coldest cloud top temperatures reaching -70 degrees Fahrenheit. Forecasts predict storm weakening and shifting trajectory over the next few days.
The Suomi NPP satellite provided a visible image of Hurricane Helene's eye on September 10, measuring approximately 20 nautical miles in width. The storm showed signs of strengthening with strong thunderstorms and cold cloud tops before expected weakening on September 12.
Hurricane Olivia is expected to bring heavy rainfall and strong winds to the Hawaiian Islands as it moves towards the state. The storm's cloud tops have temperatures near minus 70 degrees Fahrenheit, capable of generating heavy rainfall.
NASA's Aqua satellite observed Hurricane Florence undergoing an eyewall replacement cycle, which may lead to increased rainfall and storm intensity. The storm is expected to make landfall in North Carolina or South Carolina on Thursday, September 13, with severe weather warnings already in effect.
Hurricane Olivia is expected to affect Hawaii with strong winds and heavy rainfall, according to NASA. The Central Pacific Hurricane Center has issued Tropical Storm Warnings for Maui County and a Tropical Storm Watch for Oahu.
Hurricane Florence's maximum sustained winds have increased to near 115 mph, making it a category 3 hurricane. Satellite data reveal powerful thunderstorms with cloud tops as cold as minus 63 degrees Fahrenheit, capable of generating heavy rainfall.
Hurricane Helene has strengthened and become highly organized, with maximum sustained winds reaching 105 mph. It is forecast to become a major hurricane by tonight and then undergo steady weakening by late Tuesday.
NASA's Aqua satellite detected a thick ring of powerful storms around Hurricane Isaac's central dense overcast, with coldest cloud tops reaching minus 70 degrees Fahrenheit. The storm is expected to strengthen over the next day or two before weakening by the middle of the week.
Hurricane Olivia's eye is clearly visible in infrared imagery from NASA's Aqua satellite, surrounded by extremely cold cloud top temperatures of minus 63 degrees Fahrenheit. The storm is moving west-northwest at 15 mph with maximum sustained winds near 125 mph and is expected to weaken slowly through the weekend.
The GPM core satellite revealed heavy rainfall rates of 50 mm/h near the eye of Hurricane Florence, with storms producing rain at a rate of 2 inches per hour. The satellite also provided estimates of storm heights using data from geostationary satellites and radar.
Hurricane Norman's stronger storms have expanded beyond its center, with cloud top temperatures reaching minus 70 degrees Fahrenheit, capable of generating heavy rainfall. The storm is forecast to pass 200-300 miles northeast of the main Hawaiian Islands, bringing large and potentially dangerous surf.
The Global Precipitation Measurement mission found heaviest rainfall rates at 1.5 inches per hour around the storm's compact eye. Hurricane-force winds extend up to 25 miles from the center, while tropical-storm-force winds reach 115 miles out.
Hurricane Florence strengthened into a major hurricane, with maximum sustained winds estimated at 120 mph (195 kph), according to NASA-NOAA's Suomi NPP satellite observations. The storm is expected to gradually weaken and then re-strengthen through the weekend.
Hurricane Olivia has weakened to a Category 2 storm with decreasing maximum sustained winds of near 110 mph, indicating reduced strength. The National Hurricane Center expects continued slow weakening over the next few days.
Hurricane Norman rapidly intensified from 85 to 115 mph with Norman now a category 3 hurricane on the Saffir-Simpson scale. The center of the storm is located near latitude 19.5 degrees north and longitude 147.7 degrees west, moving towards the west-northwest.
Cold cloud top temperatures near minus 70 degrees Fahrenheit indicate heavy rainfall potential for Hurricane Olivia.
Hurricane Miriam is tracking north through the Central Pacific Ocean, with cloud top temperatures reaching as cold as minus 80 degrees Fahrenheit. Rapid weakening is expected to begin later today and continue through Sunday, with Miriam becoming a post-tropical remnant low pressure area.
Hurricane Norman's strongest thunderstorms are located southeast of its center, with cloud top temperatures as cold as minus 80 degrees Fahrenheit. This indicates the potential for heavy rain generation, and the storm is expected to remain powerful through next week.
Hurricane Miriam is moving northwestward across the Central Pacific, with maximum sustained winds near 80 mph. The storm is expected to intensify today and then rapidly weaken by Saturday night, remaining far away from land.
Researchers observed hurricane storm tops circling at very low temperatures, indicating intense energy and heavy rainfall potential. These findings provide critical insights into the dynamics of powerful storms.
Tropical Storm Norman is rapidly intensifying, with maximum sustained winds reaching near 60 mph, and a high chance of becoming a hurricane by Thursday. The storm's infrared satellite signature indicates significant strengthening over the next couple of days.
Hurricane Lane is expected to produce total rain accumulations of 10 to 20 inches, with localized amounts up to 40 inches possible over Hawaiian Islands. The slow movement of the storm increases the threat for prolonged heavy rainfall and extreme rainfall totals.
The GPM core observatory satellite analyzed rainfall rates and cloud heights of Hurricane Lane on Aug. 22, revealing very heavy rain occurring within the storm's eye wall. The satellite showed moderate to heavy rainfall extending outward from the storm's center, posing a threat to the Hawaiian Islands with powerful storms.
A multi-national collaborative study found that the record number of tropical cyclones in 2005 is close to the maximum number that might occur in the North Atlantic given existing climate conditions. The study used climate models to estimate this maximum number, which was found to be relatively low.
NASA's Terra satellite monitored Hurricane Lane's powerful storms, confirming strong thunderstorms capable of heavy rainfall. The storm is expected to make a turn toward the Hawaiian Islands, bringing large swells and excessive rainfall that could lead to flash flooding and mudslides.
The GPM satellite provided highly accurate information about precipitation within Hurricane Lane, revealing intense feeder bands and eye wall storms. Rainfall rates reached over 89 mm/hour near the hurricane's eye, with some areas dropping rain at a rate of over 143 mm/hour.
A GPM satellite scan revealed Hurricane Lane's strengthening to a Category 2 hurricane, with intense rainfall rates of over 128 mm/hour and towering cloud heights. The storm's formation eye wall was accurately mapped using the satellite's radar data.
NASA's Aqua satellite captured Hurricane Hector's large eye after it passed the Hawaiian Islands. The storm's cloud top temperatures were as cold as minus 70 degrees Fahrenheit, indicating strong storms capable of heavy rain. A tropical storm watch is in effect for Johnston Island, with swells expected to produce dangerous waves.
The Global Precipitation Measurement mission provided detailed coverage of hurricane John, revealing heavy rainfall in the eastern half of the hurricane. The satellite's radar data showed extremely heavy rainfall rates of over 2 inches per hour just east of John's eye, with storms reaching altitudes of up to 13.5 km.
Hurricane Hector maintains its major hurricane status as it moves south of Hawaii, with cloud top temperatures indicating strong storms capable of creating heavy rain. The National Weather Service predicts tropical storm conditions and large surf along the Big Island and Maui, prompting monitoring from interests in Johnston Island.
Hurricane Hector remains a Category 4 storm despite slight weakening, threatening the Big Island of Hawaii with hurricane-force winds and large swells. The storm is expected to pass 165 miles south of the island on Wednesday, bringing tropical storm force winds and potentially hazardous conditions.
Hurricane Hector was observed in detail by NASA-NOAA's Suomi NPP satellite, providing forecasters with valuable information on its clouds and structure. The storm maintained its strength with sustained winds of 120 mph and an estimated central pressure of 962 millibars.
Tropical Storm Ileana is intensifying off the coast of Mexico, with cloud top temperatures reaching minus 80 degrees Fahrenheit. The National Hurricane Center predicts heavy rain and flash flooding in coastal areas, with possible isolated maximum amounts of 6 inches.
Scientists discovered a compact center surrounded by strong storms in Hurricane Hector using infrared satellite imagery. The coldest cloud tops circling the center were as cold as minus 70 degrees Fahrenheit.
Researchers used official government records to estimate a higher death toll from Hurricane Maria, with approximately 1,139 deaths surpassing the official count of 64. The study aimed to inform future weather disaster preparedness and response.
The NASA Terra satellite analyzed Hurricane Hector's cloud top temperatures, finding strongest thunderstorms as cold as or colder than minus 80 degrees Fahrenheit. These cold clouds indicate strong storms capable of creating heavy rain.
A new study estimates that up to 1,139 people died in Puerto Rico as a result of Hurricane Maria, surpassing the official death count of 64. The researchers used vital statistics records and calculated an average number of expected deaths for each month before and after the hurricane hit.
A new study estimates that Hurricane Maria caused over 1,139 deaths in Puerto Rico through December 2017, exceeding the official death toll of 64. The analysis used vital statistics records to account for indirect deaths due to infectious disease outbreaks and lack of services.