Weakening Hurricane Bud is expected to produce life-threatening flash floods and mud slides across southwestern Mexico. The storm's rainfall rates are decreasing, with moderate to heavy precipitation only present in the southeastern quadrant.
NASA observed hurricane Aletta's intense rainfall rates and powerful storms before it weakened due to adverse conditions. The storm produced heavy precipitation, with radar data indicating a rate of over 142 mm per hour.
Researchers used citizen science to analyze slug appearances and complex weather patterns, revealing correlations between humidity, precipitation, and windspeed. This prediction method could inform targeted eradication policies against invasive species like the giant slug.
A new study by Portland State University reveals that climate change impacts tree growth rates vary among widely distributed tree species in different regions of Patagonia. The research found that warmer conditions and changes in storm tracks led to altered precipitation patterns, favoring tree growth in some areas over others.
Tropical Storm Aletta was found to have intense rain bands with rainfall rates over 187 mm, and storm top heights of over 12 km. The Global Precipitation Measurement mission revealed these findings using GPM precipitation measurements.
NASA satellites provided an infrared, night-time and precipitation analysis of Tropical Cyclone Mekun, revealing powerful convective storms southwest of the center. The storm's cloud top temperatures were as cold as -63.1°C, indicating potential for heavy rainfall.
NASA analyzed satellite data to measure heavy US rainfall, finding record amounts in the Mid-Atlantic region. The extreme precipitation led to severe flooding along several rivers, including Washington D.C.'s Potomac River.
A recent study found that limiting global warming to 1.5°C could reduce extreme climate events in Africa, such as droughts and heatwaves, by up to 25% and 20%, respectively. This reduction is projected despite a slight increase in precipitation extremes.
Scientists project significant climate changes in Western China and central Asia along the Millennium Silk Road by 2020 and 2030 under different warming scenarios. A half-degree reduction in global warming can avoid severe impacts on precipitation and extreme heat events.
Heavy seasonal rainfall caused by NASA's Integrated Multi-satellitE Retrievals for GPM (IMERG) revealed severe flooding in Kenya, displacing over 244,000 people. The estimated death toll from flooding and mudslides has been increased to about 100 people.
The GPM core satellite analyzed severe weather in the US, predicting a surge of spring tornadoes after a drought. Moisture-laden air from the Gulf of Mexico interacted with dry air, resulting in thunderstorms that spawned rotation and tornadoes.
Researchers found temperature, precipitation, humidity, and cloud cover associated with positive or negative expressed sentiments. Positive expressions increased up to 20 degrees Celsius before declining over 30 degrees Celsius, while high humidity and cloud cover were linked to negative expressions.
Tropical Cyclone Fakir is expected to intensify as it moves southeastward, with heavy rainfall rates reaching over 8.6 inches per hour in some areas. The GPM satellite revealed bands of extremely heavy rainfall spiraling into the cyclone's southeastern side, and predicted that the storm could peak in strength on April 24.
Tropical Cyclone Keni caused widespread damage and flash flooding in Fiji, especially on the island of Kadavu. Rainfall totals exceeded 200 mm over southwestern Viti Levu and reached 430 mm southwest of Viti Levu.
A new study from University of Wisconsin-Madison scientists describes a method using cloud characteristics to quantify snowfall on the Greenland Ice Sheet. The research found two distinct cloud types producing snow at Summit Station, with mixed-phase clouds accounting for 51% of snow accumulation.
Tropical Cyclone Keni has formed in the South Pacific Ocean, with NASA's Global Precipitation Measurement mission (GPM) detecting heavy rainfall. The storm is tracking southeastward at 25 knots, expected to weaken and begin extratropical transition by April 11.
The Global Precipitation Measurement (GPM) mission observed heavy convective rainfall southeast of Tropical Cyclone Iris' surface center. Heavy precipitation rates were recorded at over 59 mm per hour in that area.
Tropical Cyclone Iris has taken a long and fluctuating trek since its formation in the Coral Sea. The GPM core satellite analyzed heavy rainfall as it lingered near the Queensland coast before weakening and moving away from the coast.
NASA analyzed Tropical Cyclone Josie's heavy rainfall using Integrated Multi-satellitE Retrievals for GPM (IMERG) data, revealing extreme rainfall totals of over 450 mm in some areas. The study showed that Josie's clockwise circulation caused flooding leading to at least four deaths in Fiji.
The GPM satellite detected strong convective storms dropping rain at a rate of over 264 mm/hour, with some reaching heights of nearly 18 km. Favorable conditions are expected to aid Jelawat's rapid intensification and make it the first western Pacific Ocean typhoon of 2018.
NASA analyzed satellite data to calculate Tropical Cyclone Nora's heavy rainfall in Queensland, revealing over 433 mm of rain in the Gulf of Carpentaria. The analysis also indicated significant precipitation along Nora's track into northwestern Queensland, causing flooding and landslides.
A study links North Atlantic iceberg discharge to increased South American monsoon precipitation, leading to higher global atmospheric methane levels. The research provides new insights into the tropical hydrologic cycle and its implications for climate change.
GPM's Dual Frequency Precipitation Radar data revealed intense convective storms in Tropical Cyclone Eliakim's northwest quadrant, dropping rain at over 205 mm/hour. The storm showed improved organization and powerful convective storms on its way to landfall in Madagascar.
NASA's GPM core satellite detected towering thunderstorms southeast of Tropical Cyclone Linda's center, producing heavy rainfall at rates exceeding 7.1 inches per hour. The storm's convective activity is decreasing due to dry air moving into the system and increasing vertical wind shear.
NASA's Global Precipitation Measurement mission revealed extreme heavy rainfall in Tropical Cyclone Hola, dropping 9.5 inches per hour on the eastern edge of its low-level center. The satellite data showed convective storms reaching heights above 7.4 miles, posing a threat to Vanuatu and neighboring islands.
Tropical Cyclone Dumazile brought extremely heavy rainfall to Madagascar, with over 210 mm of precipitation reported along the northeastern coast. The GPM satellite detected intense bands of rain and storms dropping rain at rates of up to 160 mm/hour, causing widespread flooding.
The Global Precipitation Measurement mission captured intense rainfall rates exceeding 5.1 inches per hour in southwestern Arkansas. Life-threatening flood conditions resulted from over 10 inches of rain, with storm tops reaching heights above 5.6 miles.
Recent heavy rainfall and melting snow have caused widespread flooding across the central and southern US, from the Gulf Coast to the Great Lakes. NASA's rainfall analysis found above-normal precipitation in parts of the upper Midwest, exacerbating the flood threat.
Researchers project a significant decline in Indian monsoon low-pressure system activity, with a 45% decrease expected by the late 21st century. This change is associated with a poleward shift in LPS formation, leading to increased extreme precipitation in northern India.
Research reveals two distinct periods of lake existence in the region, with increased precipitation driving formation during warmer periods. The study's findings suggest a potential analogue for future climate change and highlight the importance of understanding El Niño-driven precipitation patterns in arid regions.
A new study reveals that global grazing lands have increased year-to-year precipitation variability, constraining livestock support and food security. Regions with high variability support lower livestock densities and are already marginal for crops.
A global precipitation database analysis suggests that approximately 14% of the Earth's surface experiences annual precipitation dependence on the previous year, while 76% does not. This finding provides a framework for assessing long-lasting changes in rainfall by considering natural variability.
Tropical Cyclone Gita is weakening due to vertical wind shear, posing threats to New Caledonia and New Zealand. The storm will encounter cooler ocean waters and transition into an extra-tropical low on February 20.
A new study suggests that increased precipitation in the East Asian region led to erosion and the transport of dust into the North Pacific Ocean, which in turn fertilized the ocean surface waters, pulling carbon dioxide out of the atmosphere. This process may have contributed to a cooling of the Earth's climate 2.7 million years ago.
Tropical Cyclone Gita produced over a foot of rain, causing widespread destruction and flooding in Samoa and Tonga. NASA's IMERG analysis revealed heavy rains and strong winds affected both countries, with some structures destroyed including Tonga's historic Parliament House.
Heavy rainfall was triggered by Tropical Cyclone Gita, strengthening into a Category 4 hurricane on Feb 12. The storm produced intense rainfall rates of over 64 mm per hour in some areas, with the heaviest falls recorded northeast of Samoa at 224 mm per hour.
Scientists developed a lightning-based approach to predict short-duration rainfall, using sharp increasing rates of lightning flashes to provide early warnings. The new method was tested over the Beijing Metropolitan Region and showed encouraging model performance, with successful early warnings for 67.8% of moderate and 87.0% of inten...
A new study found that age at sexual maturity and average rainfall significantly correlated with cranial shape in carnivores. Skulls of species living in regions with higher precipitation showed elongated features, while those with narrower diets exhibited stiffer lower elements.
Tropical Cyclone Cebile in the Southern Pacific Ocean is experiencing strong vertical wind shear, causing rainfall to be pushed away from its center. The heaviest precipitation was found southeast of Cebile's center, with powerful storms on the southern side still dropping rain at high rates.
NASA's GPM satellite measured Tropical Cyclone Cebile's rainfall intensity at over 228 mm/h on January 31, 2018. The storm's eye featured a clear circular structure with deep convective banding and sharp eyewall.
NASA's Terra and GPM satellites confirmed that wind shear pushed Tropical Cyclone Fehi's clouds and thunderstorms south of its center. The storm triggered warnings in New Zealand due to heavy rainfall and strong winds.
Researchers found that ultrafine aerosol particles can have a stronger impact on storm clouds and precipitation than previously thought. In the Amazon rainforest, these tiny particles can intensify storms and cause more rain due to their ability to form many small droplets that draw excess water vapor from the atmosphere.
Scientists from Siberian Federal University have developed a new method for synthesizing iron-dysprosium garnet, a promising magnetic material. This method uses anion resin exchange precipitation, allowing for the production of materials with controlled properties and no high temperatures or aggressive substances.
Cloud seeding with silver iodide resulted in the formation of ice crystals within 30 minutes, which grew up to 1 mm in diameter and eventually became precipitation as snow. The study provides valuable insights into the process of snow formation via cloud seeding, paving the way for further research.
Heavy rainfall in California, fueled by wildfires, caused deadly mudslides that killed at least 17 residents. NASA's LHASA model provided a landslide hazard assessment map, showing the potential for landslides.
Researchers analyzed three weather systems to understand how aerosols influence cloud formation and development. The study highlights the complexity of aerosol-cloud-precipitation-radiation interactions, which vary on a case-by-case basis.
Tropical cyclone Ava caused extreme flooding and landslides in Madagascar, resulting in at least 29 deaths. NASA's IMERG analysis estimated near-700mm of rainfall in the Indian Ocean northeast of Madagascar, with highest totals on land in northeastern regions.
A new special issue of Advances in Atmospheric Science explores the effects of aerosols on climate, with studies focusing on aerosol-cloud interactions, cloud-base height, and fine aerosol particles. The research aims to improve weather forecasting and climate models, shedding light on a crucial topic despite years of inquiry.
Researchers have discovered that different aerosol types can act as cloud condensation nuclei, affecting cloud behavior and resulting precipitation. The study highlights the importance of considering aerosol type in understanding cloud formation and precipitation interactions.
Tropical Cyclone Irving was hurricane-force in the Southern Indian Ocean, with heavy rainfall rates of over 93 mm/h reported by GPM's DPR Ku Band. The storm's 3-D precipitation structure was examined, revealing powerful storms at altitudes of up to 17 km.
Researchers used a probabilistic approach to attribute the extreme event to natural variability and anthropogenic forcing. They found that strong El Niño events significantly increase the risk of extreme rainfall, but also suggest smaller-scale anthropogenic contributions.
Tropical Depression Bolaven caused flooding, landslides, and at least two deaths in the Philippines with heavy rain falling at a rate of almost 121 mm per hour. A NASA satellite observed the storm's 3-D structure, revealing storm tops exceeding 16 km high.
A new study analyzing yellow warbler genomes finds that genes associated with exploratory and migratory behavior may be important for successful climate adaptation. Precipitation is the climate factor with the strongest association with specific genomic traits.
Tropical Cyclone Hilda formed near Australia's northwest coast, with NASA's GPM satellite detecting heavy precipitation. The storm intensified to a tropical storm before dissipating over land, bringing a Tropical Cyclone Warning to the region.
Tropical Storm Kai-Tak generated heavy rainfall in central and southern Philippines, causing major flooding and landslides. The storm's estimated precipitation totals reached up to 512 mm (20.2 inches) along its track.
Tropical Storm Kai-tak developed near the east central Philippines, producing strong convective storms with heavy precipitation. GPM data showed intense storms dropping rain at a rate of over 143 mm/h and reaching altitudes of over 16 km.
A short-lived tropical cyclone in the Bay of Bengal produced moderate to heavy rainfall along northeastern India's coastline. The analysis used data from NASA's IMERG mission showed that more than 508 mm of rain fell in the Bay of Bengal, with storm tops reaching heights of over 11.5 km.
NASA's GPM mission observed remnants of Tropical Cyclone Ockhi reaching the Indian coast with heavy rainfall exceeding 101.6 mm per hour. The storms' displacement indicates strong vertical wind shear, pushing them away from the center.
Tropical Cyclone Ockhi was found to produce very heavy rainfall, with storms northwest of the eye dropping precipitation at rates over 60 mm/hour. The storm's vertical wind shear caused it to weaken, leading to a final landfall near the Gulf of Khambhat on Dec. 6.
Tropical Depression Dahlia's center was found to be devoid of rainfall by NASA's Global Precipitation Measurement mission. The storm was weakening and moving south at 10 knots, with cooler sea surface temperatures and wind shear expected to lead to its dissipation.