Articles tagged with Weather Forecasting
NASA tracked Tropical Storm Fay's development using satellite data, creating an animation of the storm's progression. The strongest storms were located in the northeastern quadrant, with temperatures as cold as -63 degrees Fahrenheit, indicating powerful thunderstorms and potential heavy rainfall.
Tropical Storm Cristina has become better organized with a curved band around the center and ragged eye visible in satellite images. Cloud top temperatures as cold as minus 70 degrees Fahrenheit indicate strong storms with the potential to generate heavy rainfall, and maximum sustained winds near 70 mph.
A recent study from the Institute of Atmospheric Physics found that lightning activity and charge structure varied before and after a severe hailfall. The research suggests that lightning data can serve as an indicator for hazardous weather phenomena and improve short-term forecasting.
Tropical cyclones use warm air as fuel to form and strengthen. Cloud top temperatures provide information about the strongest storms within a tropical cyclone, which can indicate heavy rain and potential hurricane formation.
NASA's Aqua satellite gathered water vapor data on Tropical Storm Cristina, revealing highest concentrations of water vapor and coldest cloud top temperatures around the center of circulation. The analysis indicates that storms with such conditions have the potential to produce heavy rainfall.
Tropical cyclones are made of hundreds of thunderstorms, and infrared data can show where the strongest storms are located. NASA research has found that cloud top temperatures as cold as minus 80 degrees Fahrenheit indicate strong storms with potential to generate heavy rainfall.
Researchers developed a breakthrough machine learning approach that quickly produces higher-resolution climate data, enhancing wind velocity and solar irradiance by 50 and 25 times respectively. This advancement will enable scientists to complete renewable energy studies with more accuracy and speed.
NASA-NOAA's Suomi NPP satellite captured post-tropical cyclone Edouard transitioning into the western North Atlantic. The system was classified as extratropical due to its merged center of circulation with a frontal boundary.
Researchers found a statistically significant difference in storm structure between those producing tornadoes and non-tornadic supercells, which could lead to more accurate warnings. The study suggests using polarimetric radar data to identify the orientation of raindrop shapes, potentially improving tornado warning times.
University of Massachusetts Amherst biostatistician Nicholas Reich has received significant grants from the CDC and NIH to enhance his groundbreaking pandemic forecasting work. The new funding will support the expansion of the COVID-19 Forecast Hub, which provides weekly projections for COVID-19 deaths in the US and by state.
Tropical Depression Four-E formed on June 29 and is forecast to weaken as it moves northwestward. The depression's maximum sustained winds have decreased to near 30 mph with higher gusts.
Tropical Storm Boris formed in the Eastern Pacific Ocean, with NASA-NOAA's Suomi NPP satellite providing visible imagery. The storm strengthened to maximum strength before weakening back into a depression over the next 12 hours.
Post-Tropical Cyclone Dolly weakened further as it moved northeastward, losing tropical characteristics. The storm's strongest thunderstorms were displaced to the south of the center, and it is forecast to dissipate by Thursday morning.
NASA monitored Tropical Storm Nuri's landfall in southern China, using Terra satellite images to track its progression. The storm dissipated after making landfall, with maximum sustained winds near 25 knots.
Tropical Depression Nuri formed after passing over Luzon, Philippines and moved into the South China Sea. The storm is forecast to make landfall southwest of Hong Kong, China on June 14 with maximum sustained winds of 30 knots.
Researchers at the University of Reading found that calculating the speed of coronal mass ejections (CMEs) when they hit Earth provides more useful early warnings for satellite operators. This allows them to take evasive action or switch off systems to protect against radiation damage, and warn astronauts of potential threats.
Post-tropical cyclone Cristobal is soaking the Great Lakes, triggering watches and warnings for heavy rain, gusty winds, and tornadoes. Rainfall rates reached 1 inch per hour in some areas, with minor to moderate river flooding expected.
Tropical Depression Cristobal is generating large amounts of rainfall while heading towards the Great Lakes region. Forecasters expect Cristobal to produce storm total rainfall accumulations of 2-4 inches with local amounts up to 6 inches, potentially leading to flash flooding.
Heavy rainfall rates of up to 1 inch per hour were observed north of Tropical Storm Cristobal, leading to large amounts of rain on the ground. The National Hurricane Center predicts storm total rainfall accumulations of 5-10 inches across portions of the Gulf Coast.
NASA's Aqua satellite gathered infrared imagery and cloud top temperature data on Tropical Depression Cristobal, revealing areas of powerful thunderstorms with potential for heavy rainfall. The storm is expected to strengthen later today and regain tropical storm strength in the next 48 hours.
NASA's Terra satellite captured visible images of Nisarga's remnant clouds over central India. The storm weakened from hurricane force to a depression and eventually into a low-pressure area, bringing light to moderate rainfall to the region.
Tropical Storm Cristobal generated large amounts of rainfall over Mexico's Yucatan and Central America. NASA analyzed cloud top temperatures using satellite data to assess the storm's strength.
Tropical Storm Amanda formed on May 31 over the eastern Pacific Ocean, near Guatemala's coast. The storm quickly moved inland and weakened due to mountainous terrain, dissipating by May 31. Its remnants are expected to generate heavy rainfall over Central America and southern Mexico.
Researchers developed an algorithm to analyze ocean conditions and identify regions where objects are likely to converge. The technique uses data-driven ocean modeling and prediction systems to uncover hidden 'traps', providing first responders with a new perspective for search-and-rescue operations.
Tropical Storm Bertha has formed off the coast of South Carolina, with NASA-NOAA's Suomi NPP satellite providing critical forecast guidance. The storm is expected to produce life-threatening flash flooding across eastern and central South Carolina, as well as western North Carolina and southwest Virginia.
NASA's Aqua satellite gathers temperature information about Tropical Storm Mangga's cloud tops, revealing powerful thunderstorms with potential to generate heavy rainfall. The strongest storms have coldest cloud top temperatures, indicating strong and potentially destructive weather.
NASA satellites provided critical imagery of Typhoon Amphan as it approached a landfall in northeastern India. The storm's cloud top temperatures indicated strong storms with potential for heavy rainfall.
The NASA-NOAA Suomi NPP satellite captured a visible image of post-tropical storm Arthur on May 19, revealing a weak circulation with clouds northeast and east of the center. The storm is expected to weaken and move southeast through Thursday, affecting waters in the Bahamas.
Researchers found significant changes in the Pacific Walker circulation between 54-48 million years ago, with a broadening of ~38°. The circulation's intensity increased as the climate cooled, but its location was controlled by plate movements and CO2 concentrations.
Tropical Storm Arthur experienced heavy rainfall rates of over 25mm per hour near its northeastern side, with lighter rates throughout the rest of the storm. Forecasters incorporated this data into their forecasts, noting potential impacts on swells and life-threatening surf conditions in the mid-Atlantic and southeast US coasts.
A low-pressure area, System 90L, is developing in the Straits of Florida, with NASA's Aqua satellite measuring cloud top temperatures indicating stronger storms. The system has a high chance of development into a tropical or subtropical storm by Saturday.
Researchers improve forecasting of strong convective weather using analogy method, which estimates occurrence environment for similar weather phenomena based on historical model forecasts. The method performs well in predicting potential for strong convection in different regions of China.
Tropical Storm Vongfong is consolidating and organizing into a tropical cyclone, with higher cloud top temperatures indicating stronger storm conditions. The storm is expected to strengthen over the Philippines archipelago, bringing scattered to heavy rain showers and strong winds.
CU Boulder researchers developed a method to predict ocean acidity up to five years in advance, providing crucial information for fisheries and communities. The new approach leverages historical climate model forecasts to improve prediction accuracy.
Tropical Storm Jeruto was identified by NASA's Suomi NPP satellite on April 15, 2020, with a visible image showing elongated shape due to wind shear. Forecasters predict the storm will likely dissipate within a couple of days as vertical wind shear increases.
Researchers found that UAV sounding data can improve Antarctic weather forecasting, especially for temperature, wind speed, and humidity predictions. The limited flight altitude of UAVs restricts the improvement to the atmospheric boundary layer.
Tropical Cyclone Harold brought heavy rains and hurricane-force winds to Vanuatu, with NASA-NOAA's Suomi NPP satellite tracking its movement towards Fiji. Forecasters expect the storm to make a brief landfall over Fiji on April 7, although intensity may remain steady or increase if an eye forms.
A recent study used the MEDSLIK-II model to forecast the spread of an oil spill, predicting its arrival at French beaches 7 days in advance. The collaboration between CMCC Foundation and REMPEC ensured timely exchange of information, producing accurate forecasts that aided coastal preparedness.
Tropical Cyclone Irondro is intensifying in the Southern Indian Ocean, with NASA's Terra satellite capturing its organized storm structure and developing cloud-filled eye. The Joint Typhoon Warning Center forecasts maximum sustained winds near 75 knots by April 4.
NASA's Suomi NPP satellite provides visible image of newly formed Tropical Cyclone Harold near Solomon Islands. The storm threatens Vanuatu, which has issued warnings for damaging gale force winds.
New research suggests that the Arctic may impact Eurasian extreme weather events as quickly as two to three weeks, highlighting the need for more robust analysis techniques. The study aims to improve forecast accuracy by targeting specific observations and developing simulation experiments.
The article discusses recent findings from WAMC workshops and YOPP meetings, focusing on Antarctic observations, numerical modeling, and weather forecasting. Open access to datasets and improved predictive skills are major aspirations for the Polar Prediction Project.
Herold, a former tropical cyclone, has weakened to a low-pressure area with wispy clouds and minimal heavy rainfall. NASA's Aqua satellite provided forecasters with a visible image of the storm's center on March 20.
Tropical Cyclone Herold intensified with a more defined eye in NASA satellite imagery, confirming a sharp intensification trend over the past 12 hours. The eye was visible down to the ocean's surface through clear clouds, revealing powerful bands of thunderstorms.
NASA's Aqua satellite captured a visible image of Tropical Cyclone Herold with a well-developed hurricane and powerful thunderstorms surrounding its eye. The storm is forecast to turn southeast and strengthen to 90 knots before becoming subtropical.
Tropical Storm 22S formed near northeastern Madagascar after being observed by NASA's Terra satellite, which captured strong thunderstorms and rainfall in the western quadrant. The storm is expected to strengthen to 90 knots (104 mph) before becoming subtropical and potentially pass between Mauritius and Rodrigues.
NASA's Terra satellite provided a visible image of Ex-Tropical Cyclone 21S, which is still affecting Western Australia's Pilbara Coast with heavy rainfall and squally winds. The system is expected to bring severe weather events, including damaging wind gusts and flash flooding.
Tropical Storm 21S formed in the Southern Indian Ocean and was tracked by NASA-NOAA's Suomi NPP satellite. The storm is expected to make landfall in Western Australia as a tropical storm, with maximum sustained winds near 35 knots (40 mph/65 kph).
A new method using Nonlinear Forcing Singular Vector (NFSV) reduces model error in numerical weather forecasting models. The approach identifies the uncertainty of variable and area most likely to cause large errors, enabling adaptive satellite observations to improve short-term forecasts.
A new study reveals that analyzing large-scale ecological patterns can help predict changes in ecosystems. Ecologists are using decades of weather data to forecast bird migrations and wildlife population fluctuations, which can inform conservation measures. The research aims to improve understanding of the climate-ecology link, enablin...
Ex-tropical cyclone Esther's remnant clouds and storms are being tracked by NASA's Aqua satellite over the Barkly Region of Australia's Northern Territory. The region has experienced widespread rainfall totals of 50 to 150 mm, leading to localized flooding and areas of inundation.
Ex-tropical cyclone Esther has moved over Northern Territory, generating a flood watch and widespread rainfall totals. Satellite imagery provided by NASA-NOAA's Suomi NPP satellite shows the remnants of the storm have blanketed the region.
Cold pools can trap pollutants, reduce wind speeds, and cause freezing rain, posing serious health risks in urban areas. The study aims to improve forecasting of these events to ensure a stable electrical grid and lower energy costs.
Tropical cyclone 18P has organized into a tropical depression near American Samoa, with maximum sustained winds of 30 knots. It is forecast to intensify into a tropical storm by Feb. 22 and then dissipate due to vertical wind shear.
A new international advisory system is working to keep aircraft crew and passengers safe from space weather impacts. The system predicts disruptions from solar activity and helps airlines adjust flight paths to minimize impacts on navigation and communications systems.
A new study verified multi-system forecasts for major stratospheric sudden warmings (MSSWs), showing that all four systems can be judged skilled for five-day forecasts when averaged across available MSSWs. Longer lead times present challenges, with some systems skillful but others not.
Ex-Tropical Cyclone Uesi continues to generate moderate rainfall in its southern quadrant, with the heaviest rates found south of the center. The system is expected to bring periods of heavy rain to the west and south of the South Island on Sunday and early Monday.
NASA's Aqua satellite captured an image of Tropical Cyclone Francisco re-developing a rounded shape with thunderstorms spiraling into its center. The storm is expected to make landfall over Madagascar and weaken as it tracks inland, dissipating on Feb. 15.
Researchers at Johannes Gutenberg University Mainz have developed an algorithm that can solve complex problems with remarkable facility on a personal computer. The SPA algorithm enables accurate weather forecasts with a prediction error of only 0.75 degrees Celsius, surpassing the performance of supercomputers.
Heavy rainfall was detected southwest of Tropical Cyclone Uesi's center by NASA's Global Precipitation Measurement mission. Rainfall rates reached up to 1.6 inches per hour in some areas, with scattered light rain falling at slower rates in other regions.