Articles tagged with Rain
The US Pacific Northwest experienced extreme rainfall from Dec. 2 to 9, 2015, with areas receiving over 160 mm of rain and the open waters of the Pacific Ocean seeing totals over 310 mm. This heavy moisture was attributed to atmospheric rivers originating in the Western Pacific Ocean.
A series of low-pressure areas pummelled the Pacific Northwest from Nov. 29 to Dec. 9, 2015, bringing heavy rain and snow to western Washington and northwestern Oregon. The National Weather Service described the event as a classic atmospheric river event with subtropical moisture and upper-level disturbances affecting the region.
Hurricane Sandra's rainfall was extensively studied using NASA's Integrated Multi-satellitE Retrievals for GPM (IMERG) data. The analysis showed that the hurricane produced over 700 mm of rainfall in an area northeast of Puerto Vallarta, Mexico.
Tropical Cyclone Tuni lost its tropical characteristics and became extra-tropical as it moved southeast in the Southern Pacific Ocean. The storm's maximum sustained winds decreased from 60.4 mph to 40 mph, with heavy rain falling at a rate of over 1.4 inches per hour.
Tropical Storm Sandra is decoupling from its lower layer due to strong upper-level winds, resulting in a tight swirl of low clouds devoid of deep convection. This weakening trend is expected to produce 2-4 inches of rainfall across western Mexico, leading to life-threatening flash floods and mudslides.
Hurricane Sandra, the latest major hurricane on record in the Eastern Pacific, is forecast to make landfall in Western Mexico. It is expected to produce total rainfall accumulations of 1-3 inches over Baja California Sur, with isolated amounts reaching up to 10 inches.
The Global Precipitation Measurement mission found extreme rainfall rates of over 266 mm/h in Typhoon In-fa, driven by powerful convective thunderstorms. The satellite's Dual-Frequency Precipitation Radar instrument provided detailed insights into the storm's structure and intensity.
Tropical Storm Sandra strengthened to 35 knots with intense convective storms dropping rain at over 80 mm per hour. It is forecast to strengthen into a hurricane by Nov. 25, with a well-suited environment for intensification due to warm ocean water and light vertical wind shear.
Typhoon In-fa intensified quickly from a tropical depression to a typhoon, maintaining tropical-storm force on Nov. 19. Rainfall data revealed powerful convective thunderstorms with rates over 74 mm/hour, while storm top heights reached up to 16.7 km.
A recent study by Woods Hole Oceanographic Institution researchers reveals that long-term ocean warming significantly increased the risk of devastating floods in northeast Australia during the 2010/2011 event. The study found that warmer sea surface temperatures contributed to record-breaking rainfall and extreme weather conditions.
Heavy flooding in southeastern India has caused at least 70 reported deaths, with Chennai experiencing exceptionally high casualties. NASA's Integrated Multi-satellite Retrievals for GPM (IMERG) data indicate rainfall totals of over 200mm in large areas of Tamil Nadu and northern Sri Lanka.
NASA's GPM, RapidScat, and NOAA's GOES-East satellites observed former tropical cyclone Kate in the Northern Atlantic. The system exhibited intense storms with heavy rainfall and strong winds, peaking at category one hurricane strength on November 11, 2015.
Recent La Niña years have brought less-than-normal rainfall to Hawai'i, contrary to past trends. The shift in weather patterns has important implications for agriculture and water resource management.
A new study identifies 97 basins serving 2 billion people at risk of declining snowmelt due to warming, posing a critical threat to human water supplies. The most vulnerable regions include California, the Caucasus, and parts of Europe and Asia.
Cyclone Chapala brought over a year's worth of rain to south-central Yemen, while Cyclone Megh made landfall with much lighter rainfall totals. Despite weaker winds, Megh caused more damage and fatalities on Socatra.
A new study predicts that continued deforestation in the Amazon could lead to annual rainfall of less than drought years by 2050. Deforestation rates would need to revert back to pre-2004 levels to achieve this decline, according to researchers.
NASA is conducting a field campaign in the Pacific Northwest to verify rainfall and snowfall observations made by the Global Precipitation Measurement satellite mission. The region's frequent winter rain and snowfall make it an ideal location for studying precipitation patterns.
Tropical Cyclone Chapala recently dissipated over Yemen, but another storm is now forming in the Arabian Sea. NASA's Global Precipitation Measurement mission detected this new system with scattered light to moderate rainfall falling at a rate of 23.3 mm per hour.
Cyclone Chapala brought heavy rains and flooding to Yemen, with IMERG rainfall estimates showing totals of 5-15 inches in south central Yemen and coastal areas. The storm caused significant damage and loss of life, with at least 3 deaths and 200 injured reported.
Tropical Cyclone Chapala made history as the first land-falling tropical storm in 30 years of record-keeping. The storm's maximum sustained winds were near 85 mph (140 kph) before rapidly weakening to 25 knots (28.7 mph/46.3 kph).
Cyclone Chapala is approaching landfall in central Yemen, with the GPM satellite analyzing heavy rain and wind speeds of up to 120mph. The storm is expected to weaken rapidly after landfall, dissipating by November 4.
NASA analyzed rainfall data from Tropical Cyclone Chapala in the Arabian Sea, revealing light to moderate precipitation near its center. The storm is forecast to strengthen into a Category 5 hurricane, with maximum sustained winds expected to reach 140 knots.
NASA's RapidScat instrument captured windy conditions in the Mid-Atlantic region, fueled by remnant moisture from Hurricane Patricia and Gulf of Mexico moisture. The National Weather Service predicted widespread rainfall across the eastern third of the US, with heaviest amounts expected along the I-95 corridor.
The Global Precipitation Measurement mission tracked rainfall within Storm Olaf, revealing high storm tops and sparse rain on the western side. The post-tropical cyclone weakened over cooler waters, eventually dissipating by October 28, 2015.
NASA's RapidScat detected moderately high winds over a broad area in the Gulf of Mexico, with sustained winds near 40 mph/64 kph, just south of Louisiana. The hybrid system's cloud cover extended from Florida to Louisiana and into the Mid-Atlantic States.
NASA's RapidScat instrument gathered wind speed and direction data on the storm's remnants over the western Gulf of Mexico. The data showed strongest sustained winds near 80.5 mph/129.6 kph north and west of the center, contributing to heavy rainfall and flash flooding in Texas and other Gulf Coast states.
RapidScat data revealed strong winds in the remnants of Typhoon Champi near Alaska, with wind speeds reaching up to 80.5 mph/129.6 kph. The storm's effects brought rain, gusty winds, and warmer than normal temperatures to the region.
Hurricane Patricia broke records as the strongest eastern North Pacific hurricane on record, with a minimum central pressure of 880 millibars and maximum sustained winds near 200 mph. The storm is expected to produce catastrophic impacts in southwestern Mexico, including life-threatening flash floods and mudslides.
Tropical Storm Patricia produced lopsided heavy rains along the Mexican coast, with the western side receiving most of the moderate to heavy rainfall. The storm intensified into a hurricane on October 22, bringing warnings and watches for several states.
The Eastern Pacific Ocean's twentieth tropical depression of the season developed into Tropical Storm Patricia, with maximum sustained winds near 40 mph. The storm is forecast to approach the Mexican coast on Friday, bringing life-threatening flash floods and mudslides.
Typhoon Champi remained a powerful storm after passing over NASA's GPM satellite on October 21, 2015. The storm displayed a large eye with heavy rainfall and high winds near 86mph.
The Global Precipitation Measurement mission (GPM) analyzed rainfall rates in Category 4 Hurricane Olaf, with rain falling at over 71.5 mm/hour in the eye wall and 56.8 mm/hour in scattered rain bands on the western side.
A study published in Nature Communications suggests that California will experience more frequent and severe droughts and floods due to the El Nino-Southern Oscillation. The researchers found that extreme weather events are likely to increase, with droughts potentially doubling and floods tripling by 2100.
Typhoon Koppu brought extreme heavy rainfall to the Philippines, causing deadly flooding and mudslides. The GPM satellite data showed most of Luzon received over 300mm of rain, with some areas reaching 760mm.
Typhoon Champi generated heavy rainfall with rain rates exceeding 114.8 mm/h due to GPM's Dual-Frequency Precipitation Radar. The storm's strongest winds were found in its northern quadrant, with winds reaching 89.4 mph.
Researchers at Princeton University found that intense rainfall leads to a decrease in tree growth and an increase in grass growth on the African savanna. This is because trees struggle to utilize excess water, while grasses can absorb it quickly, giving them a competitive advantage.
NASA's GPM satellite analyzed Koppu's intensifying storm system on October 15, revealing an eye forming near its center. Rainfall rates reached over 133 mm per hour in intense thunderstorms just southwest of the storm's center.
Research finds that climate variability played a significant role in the emergence, decline, and re-establishment of ancient agrarian states in Mexico and Peru. The study analyzed climate records from stalagmites and ice caps to understand how climate conditions influenced the growth and instability of these civilizations.
A new FAU study documents the effects of temperature and rainfall on hatchling sex ratios in loggerhead turtles. Warmer conditions produce females, while cooler conditions produce males. The study's findings suggest that climate change is shifting the reproduction patterns of sea turtles.
Tropical Storm Koppu was analyzed by NASA's Global Precipitation Measurement (GPM) mission, which identified areas of intense thunderstorms dropping rain at over 88 mm/hour. The storm's energy release fueled potential intensification.
Tropical Depression Twenty Five formed east of Guam on October 13, with GPM detecting moderate to heavy rainfall. The depression strengthened into a tropical storm, Tropical Storm Champi, on October 14, forecasted to peak in intensity near 110 knots.
The remnants of former Hurricane Oho are bringing strong southeasterly winds, damaging gusts, and heavy rain to western Canada and Washington state. Weather alerts have been issued for areas such as British Columbia, Haida Gwaii, and western Washington.
The Horn of Africa is becoming increasingly arid due to global warming, threatening the region's agriculture and exacerbating tensions. Researchers have found a 2,000-year trend of drying in the region, which contradicts predictions that it will become wetter.
Typhoon Choi-Wan showed strong thunderstorms with altitudes of up to 18.5 km, as revealed by NASA's GPM satellite. The storm was weakening but still dropping rain at rates over 66 mm/hour.
Scientists developed a new method to analyze air pressure data from thousands of measurements, revealing key gateways for teleconnections between climate changes. The East Pacific, Indonesia, and tropical Atlantic are most important regions, where air masses play a crucial role in transmitting perturbations.
Researchers at University of Bristol have discovered a new type of plant movement that uses falling raindrops to drive its trapping mechanism, outperforming the Venus flytrap. The pitcher plant's lid pivots up and down like a springboard, flinging ants into the trap with peak velocities similar to a jumping locust.
Major volcanic eruptions can trigger reduced river flow in tropical and northern Asia regions, including Amazon, Congo, and Nile, researchers found. The study also reveals increased flow in sub-tropical regions like the south-west US and parts of South America.
NASA's Aqua and Terra satellites captured infrared data on October 5, revealing powerful thunderstorms with cold cloud tops near Hurricane Joaquin. The storm maintained its comma shape as it brought heavy rains and strong winds to Bermuda.
NASA satellites tracked Hurricane Joaquin's internal precipitation structure and heavy rainfall patterns, providing valuable data for forecasters. The storm reached Category 3 status on October 1, with maximum sustained winds near 120 mph and a minimum central pressure of 942 millibars.
Typhoon Dujuan brought extreme rainfall to Taiwan, with heaviest totals over 275 mm along the coast south of landfall. The typhoon caused hundreds of injuries and at least three deaths in Taiwan.
NASA's Aqua satellite tracked Tropical Depression Marty over southwestern Mexico's coast as it slowly left the area. The storm still maintained a circular appearance despite weakening, bringing heavy rain and ocean swells that could produce life-threatening flash floods.
Hurricane Joaquin strengthened into a hurricane after NASA satellites gathered data on its heavy rainfall and cloud height. The Global Precipitation Measurement satellite captured images of the storm's intense rain and convective towers, indicating its potential for intensification.
Tropical Storm Joaquin formed in the western Atlantic on September 28, fueled by rain rates of up to 60 mm/hr. The storm is expected to strengthen over the next two days as it moves northward ahead of an upper-level trough.
Tropical Storm Marty is being closely monitored by NASA's Global Precipitation Measurement (GPM) mission, which has detected substantial areas of rain on the eastern half of the storm. Heavy rainfall is expected to be a major threat to residents in western Mexico, with estimated amounts ranging from 2-12 inches.
Tropical Storm Marty is expected to bring heavy rainfall and strong winds along the Mexican west coast, posing a threat of flooding and mudslides. The storm's maximum sustained winds are near 70 mph, with higher gusts and estimated central pressure at 990 millibars.
GPM measured rainfall rates at 122 mm/h, revealing intense rain showers and storm tops reaching 15 km. The tropical depression turned northwest late on September 25, with expected weakening over the next two days.
Tropical Storm Ida's wind shear is pushing clouds and strongest storms to the east and northeast of its center, with coldest cloud tops reaching -63 degrees Fahrenheit. The storm remains over open ocean, with forecasters predicting a slow eastward motion followed by a turn towards the north later on September 24.
The remnants of Tropical Depression 16E have moved over the U.S. Southwest, bringing light to moderate rain and flash flood watches in Arizona and New Mexico.
Tropical Storm Malia was on a northwesterly track, moving away from the Hawaiian Islands on Sept. 22. Satellite imagery showed a span of 250 nautical miles between the storm's center and strongest thunderstorms.
New research shows clear signs of global warming appeared in the tropics as early as the 1960s, but in parts of Australia and Africa as far back as the 1940s. The study's findings closely match observational datasets used by the IPCC, indicating a growing trend in increasing temperatures.