Articles tagged with Weather Forecasting
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Tropical Storm Kristy formed in the Eastern Pacific Ocean on August 7th. Infrared data from NASA's Aqua satellite revealed strong storms at the storm's center, indicating its potential intensity.
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.
Typhoon Shanshan maintained an eye despite weakening due to NASA-NOAA's Suomi NPP satellite capture. The storm weakened on August 6, with deep convection diminishing and eyewall and rain bands becoming less organized.
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.
Tropical Storm John strengthened off southwestern Mexico's coast, with cloud top temperatures indicating strong storms capable of heavy rain. The storm is forecast to become a hurricane and produce life-threatening ocean conditions along the Mexican coast.
Tropical Storm Shanshan has triggered warnings in the Marianas Islands due to powerful storms detected by NASA's Terra satellite. The storm is forecast to intensify and move towards Japan, with maximum sustained winds at 50 mph.
Researchers developed a more comprehensive method for measuring the Earth's boundary layer depth using radar, which constantly ebbs and flows. This improvement in accuracy can lead to better forecasts for severe weather events, air pollution, and wildfire forecasting.
Researchers found that Arctic cyclones limit precise sea-ice prediction in the Northern Sea Route due to increased forecast error for large-scale weather features. The TOPAZ4 system, however, was reliable for early summer SIT prediction with a skill level up to 3 days.
Tropical Depression Son-Tinh was located near 21.9 degrees north latitude and 109.0 degrees east longitude, about 181 nautical miles east-northeast of Hanoi, Vietnam. The satellite image captured on July 24 shows the depression's movement towards west, indicating it will dissipate over mainland China in the next day or two.
Tropical Storm Son-Tinh continues to drop rain over Hainan Island and mainland China. The storm has tracked northward at 4 knots and appears to have entered a quasi-stationary state.
Tropical Depression Ampil was located near 37.1 degrees north latitude and 118.2 degrees east longitude on July 2. The storm moved to the north at 17 mph and was forecasted to track back over land in eastern China.
Researchers at Chapman University found that African dust storms can contribute to the development of larger, more powerful hurricanes like Hurricane Sandy. The study, published in IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, aims to improve forecasting for extreme weather events.
A team of researchers found that the sun's rotational cycle influences lightning activity in Japan, with peaks every 24 to 31 days. The solar cycle affects the level of solar activity, which amplifies the rhythm of lightning activity.
Researchers at Virginia Tech used ecological forecasting to predict future growth rates of loblolly pine trees, showing a potential 30% increase in productivity by the middle of the century. The study focused on planted loblolly pine plantations in the Southeastern United States and highlighted uncertainties depending on specific regions.
Typhoon Maria's ragged eyewall is a result of eyewall replacement, where the smaller inner eyewall deteriorates and becomes replaced by a larger outer one. The storm is moving northwest towards Taiwan and China, continuing to weaken.
Typhoon Maria brought heavy rain to Guam, with the National Weather Service issuing a Flash Flood Watch and Small Craft Advisory. The storm is forecast to continue intensifying over the next 24 hours, posing a threat of excessive rainfall and flash flooding.
NASA's Aqua satellite detects Tropical Depression 10W, forecast to intensify into a typhoon. The system is expected to pass over the Marianas late Wednesday night or early Thursday, bringing tropical storm conditions and damaging winds to Guam.
A tropical disturbance brought extremely heavy rainfall to southern Texas, resulting in record-breaking flood levels. Over 15 inches of rain fell in Hidalgo County, with IMERG estimates indicating 21 inches fell in the northwestern Gulf of Mexico.
Tropical Depression Carlotta has weakened into a remnant low pressure area while making landfall in southwestern Mexico. The storm was still producing heavy rainfall over the region before dissipating on June 19.
Tropical Depression Carlotta has powerful storms in fragmented thunderstorms over mainland Mexico and the Eastern Pacific Ocean, with cloud top temperatures as cold as minus 70 degrees Fahrenheit. The National Hurricane Center forecasts heavy rainfall and life-threatening flash floods, especially in areas of higher terrain.
Tropical Depression 04E formed near Mexico's coast on June 14 and was analyzed by NASA's Aqua satellite, which detected the strongest storms in infrared light. The depression brought heavy rainfall to coastal cities, with forecasters predicting life-threatening flash floods and mudslides.
Researchers from the University of Missouri developed a system that improves rainfall forecast accuracy by considering evaporation. This method uses dual-polarization radar to track raindrops and a model assessing atmospheric humidity, resulting in more accurate forecasts for locations 30 miles or more from National Weather Service radar.
Scientists have discovered a new 'teleconnection' that predicts winter rainfall in California by analyzing sea surface temperatures in New Zealand during the summer. This discovery allows for more accurate precipitation predictions and has implications for drought forecasting and regional ecosystem management.
NASA's Terra satellite captured an infrared image of Tropical Depression 08W revealing concentrated areas of strong storms near Taiwan. The storm is forecast to move northeast and exit Taiwan on June 15, affecting several regions with heavy rain and strong winds.
Researchers found an increase in high waves and winds in the Arctic Ocean due to melting sea ice. This increase poses a significant threat to safe navigation and coastal populations.
NASA's Aqua satellite captures infrared data on Hurricane Bud, revealing very high and towering thunderstorms near land. The storms have cold cloud top temperatures of minus 80 degrees Fahrenheit, indicating strong uplift and potential for heavy rain.
Tropical Depression 05W briefly reached tropical storm status before weakening back to a depression. NASA's Aqua satellite captured infrared imagery showing the storm's strength and potential for heavy rainfall.
A new study from University of Chicago researchers finds that 'traffic jams' in the jet stream can cause abnormal weather patterns, such as blocking events. The research develops a mechanistic model to predict long-term weather patterns, including droughts and floods, by comparing the jet stream to highway traffic.
Researchers found that the Unified Model's microphysics scheme produces unrealistic raindrop size distributions, affecting storm structures. The study emphasizes the importance of selecting the right microphysics scheme for accurate weather prediction.
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.
Scientists successfully simulated FY-2D infrared cloud images using a high-resolution WRF regional numerical weather prediction model product and forward radiation transfer model RTTOV. The results show improved accuracy, with correlation coefficients greater than 0.5 in the first 24 hours.
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.
A study by Embry-Riddle Aeronautical University researchers found that general aviation pilots had difficulty understanding various types of weather information, including METAR reports and radar displays. The findings suggest that improved pilot training and more effective weather display designs could help advance aviation safety.
Researchers used thousands of observations to find that sagebrush grows at cold sites after warm years but dies at hot sites. The study predicts that populations may decline in warmer areas but increase in colder areas.
University of Pittsburgh researchers are developing computer models to predict world events such as famine in South Sudan and refugee displacement. The models will analyze complex socioeconomic and geopolitical dynamics, incorporating both numerical and textual data.
Tropical Cyclone 16P has developed over the Arafura Sea, located between Australia's north coast and New Guinea. The storm is moving east at 4.6 mph and is expected to intensify as it enters the Gulf of Carpentaria.
Researchers proposed a local breeding of growing modes (LBGM) method to improve convection-allowing ensemble forecasting accuracy. The new method incorporates strong locality and horizontal inhomogeneity, resulting in greater ensemble spread and lower forecast RMSE compared to traditional methods.
The Moderate Resolution Imaging Spectroradiometer detected coldest cloud top temperatures in the tropical cyclone, indicating strong storms capable of heavy rain. Tropical Cyclone 11S is expected to rapidly intensify due to warm waters and low vertical wind shear.
Researchers at Columbia's Mailman School developed a method to forecast the spatial transmission of influenza in the US, improving accuracy by 35% compared to previous versions. The system accurately predicts local onset of flu six weeks ahead of time, informing decisions on vaccine distribution and public health measures.
Researchers at Colorado State University have developed an empirical model that accurately predicts atmospheric river activity in the western US three weeks in advance. This breakthrough could enhance long-term weather forecasting capabilities, allowing for earlier warnings of extreme precipitation, floods, and droughts.
Ex-Tropical Cyclone Gita's northerly wind shear caused the storm to break apart, affecting New Zealand with gusty winds, ocean swells, and heavy rain. The storm brought severe weather watches and warnings, including state of emergency declarations in several regions.
Tropical Storm 10S has formed about 50 miles west of Broome, Australia, with maximum sustained winds near 40 mph. The storm is expected to strengthen rapidly and make landfall between Broome and Port Hedland on Sunday, Feb. 18.
Tropical Storm Sanba is approaching the Philippines, triggering warnings and warnings signal #2 in effect for Mindanao provinces. The storm's center was located 415 miles east of Zamboanga, moving west-northwest at 18.4mph.
NASA's Terra satellite captured images of Tropical Depression 02W on Feb. 9, showing a developing low level circulation center with minimal convection. The National Weather Service has issued a Tropical Storm Watch for Guam and Yap State due to hazardous surf and rip currents.
The GOLD mission provides unprecedented measurements of Earth's upper atmosphere, tracking day-to-day changes in temperature and composition. By imaging ultraviolet light, GOLD will create a map of the hemisphere revealing how these forces impact our technological society.
New research from the University of Lincoln found that jet stream changes are significantly associated with UK regional rainfall and temperatures. The study suggests that using predictions of jet stream changes can produce more accurate seasonal weather forecasts on a smaller, regional scale.
A new study from Northern Illinois University predicts hailstorm likelihood with high accuracy, identifying a strong relationship between jet stream patterns and U.S. hail frequency.
New NOAA research predicts snowpack levels in the West 8 months in advance, providing crucial information for farmers and urban water managers. The accurate predictions can be made on a mountain range scale, helping to improve regional water forecasts and inform decisions on water supply, wildfire risk, ecology, and agriculture.
NASA's JPSS-1 satellite captured visible images of Tropical Cyclone Joyce as it moved south along the northwestern Australian coast on January 11. The cyclone had maximum sustained winds near 45 knots and was forecast to make landfall near Wallal Downs mid-day local time on January 12.
Tropical Storm Ava formed off northeastern Madagascar on Jan. 3, with NASA-NOAA's Suomi NPP satellite analyzing the storm in infrared light. The satellite provided data showing coldest cloud tops and strongest storms wrapped around the center of circulation.
Researchers at UMass Amherst, in collaboration with teams from Carnegie Mellon and Columbia universities, aim to predict regional flu outbreaks. By combining forecasting models and past performance data, they hope to provide better information for decision-makers.
Satellite imaging from NOAA's GOES-16 satellite reveals holiday travelers facing wet and snowy weather on both coasts. A large area of clouds associated with a frontal system is forecast to bring rain and snow across the US, with heavy rainfall and flooding predicted in the lower Mississippi and Tennessee Valleys.
Researchers analyzed atmospheric and oceanic interactions to identify a pattern linking spring sea surface temperatures to summer East Atlantic circulation over Western Europe. This connection may improve summer rainfall forecasts for the UK, Ireland, and northern France.
The Arctic's rapid warming and sea ice loss have significant impacts on Eurasian weather and climate, particularly in winter. The study finds that sea areas and western coasts of continents are relatively less affected, while continental regions, especially over Eurasia, experience the strongest influence.
Researchers at Western University have developed a method to forecast tornadoes with 90% accuracy within a 100-kilometre radius by adding high-altitude turbulence data. This breakthrough could buy up to 20 minutes of additional warning time.
Researchers developed a computer simulation tool to predict short-term flood hazards on coral reefs and assess longer-term impacts from climate change. A rare 'esker' was discovered on Mars, indicating recent water flows despite cold climates.
Tropical Storm Rina strengthened to tropical storm status on Nov. 6 with increased cloud coverage and deep convection near its center. The storm is forecasted to accelerate toward the north-northeast by Wednesday night.
A severe weather event on Nov. 5 was analyzed by NASA's Global Precipitation Measurement mission, revealing the location of strongest storms and predicting heavy rain. At least nine tornadoes were reported in Illinois, Indiana, and Ohio, causing widespread power outages and injuries.
Typhoon Lan caused extreme flooding, landslides, and seven deaths when it hit Japan. NASA's Global Precipitation Measurement mission analyzed the storm and found rain totals of up to 800 mm (31.5 inches) in parts of Honshu.
The Suomi NPP satellite captured an image of Typhoon Lan with a well-formed, circular eye surrounded by powerful thunderstorms. The storm had maximum sustained winds near 100 knots and is forecast to make landfall south of Tokyo as a typhoon on Oct. 22.