Articles tagged with Weather Forecasting
Tropical Storm Isaias is causing flooding in South and North Carolina due to heavy rain. The storm is expected to produce life-threatening flash flooding along the I-95 corridor and a risk of tornadoes from southeast Virginia to New Jersey.
Typhoon Hagupit developed an eye as it intensified, with a thick band of thunderstorms resembling a giant tail. The storm was classified as a Category 1 hurricane with maximum sustained winds near 75 mph.
Researchers from the Institute of Atmospheric Physics, Chinese Academy of Sciences, analyzed Typhoon Haikui (2012) using a multigrid NLS-4DVar method to improve radar data assimilation. This method significantly enhanced the accuracy of 12-h track and accumulated precipitation forecasts.
Tropical Storm Isaias is expected to bring heavy rain and flash flooding to the US East Coast, with NASA tracking its movement and intensity using visible and water vapor imagery. The storm's center was located near latitude 30.2 degrees north and longitude 80.1 degrees west, with estimated minimum central pressure of 994 millibars.
NASA analyzed data from its Aqua satellite, revealing high concentrations of water vapor and cold cloud top temperatures that indicate the storm's capability to produce heavy rainfall. The National Hurricane Center forecasts significant rainfall in the Dominican Republic, northern Haiti, and the Bahamas.
A new physics-based model, κ-scheme, predicts imminent large solar flares more reliably than previous methods. The model forecasts solar flares up to 20 hours in advance and identifies their location and energy release.
A Potential Tropical Cyclone (PTC) 9 has developed in the Eastern Caribbean Sea, bringing heavy rainfall and gusty winds to several islands. The National Hurricane Center has issued multiple warnings and watches, with a high formation chance of 90%.
Tropical Storm Douglas has weakened significantly due to strong wind shear, which has pushed the storm's clouds away from its center. The lack of deep convection in the storm is a clear indication of weakening.
Tropical Storm Douglas has weakened due to strong wind shear, with the strongest storms displaced from the center. The storm's cloud top temperatures have dropped as cold as minus 50 degrees Fahrenheit, leading to a rapid weakening trend over the past 24 hours.
Tropical Storm Hanna is consolidating and intensifying as it heads toward the Texas coast. The storm's minimum central pressure has increased to near 1000 millibars, with sustained winds of up to 45 mph.
Tropical Storm Gonzalo showed slight disorganization in visible and microwave imagery from NASA's Aqua satellite. The storm is forecast to approach the southern Windward Islands on Friday night and move across them Saturday, with a possibility of becoming a hurricane.
Hurricane Douglas rapidly intensified into a category 3 hurricane with maximum sustained winds near 120 mph, surrounded by powerful bands of thunderstorms. The storm's eye showed development of an eye and powerful thunderstorms circling it.
Tropical Depression 8 formed in the Gulf of Mexico on July 22, exhibiting strong storms and coldest cloud top temperatures indicating heavy rainfall potential. NASA's Aqua satellite data shows the depression moving west-northwestward with a better-defined center near the northeastern end of a broadly curved convective band.
NASA's infrared data revealed strong thunderstorms with cold cloud top temperatures around Tropical Storm Douglas, indicating potential for heavy rainfall. Despite the threat, Douglas is moving westward at 15 mph and is expected to strengthen into a hurricane on July 23.
Tropical Storm Douglas is strengthening due to low wind shear and warm sea surface temperatures, with the potential to become a hurricane in the next few days. The storm's cloud tops reached as cold as minus 70 degrees Fahrenheit, indicating strong storms capable of generating heavy rainfall.
Tropical Depression 7E is weakening due to wind shear and cool ocean waters. The storm has lost all deep convection, with only a small patch of clouds remaining.
The study enhances air quality numerical models by incorporating observation information and model background fields to improve prediction accuracy, particularly for pollutants with long lifespans. It shows significant benefits for PM2.5, PM10, and CO forecasts lasting more than 48 hours.
Astrocast uses satellite imagery and machine learning to predict drought conditions, providing valuable time for farmers and pastoralists to prepare. The system has been successful in forecasting changes up to ten weeks ahead with good confidence.
Tropical Depression 7E formed in the Eastern Pacific Ocean near Mexico's Baja California Peninsula and is expected to track over cool waters, weakening it. NASA's Terra satellite detected strong storms with cold cloud top temperatures, indicating potential for heavy rainfall.
The COVID-19 pandemic led to a significant reduction in commercial flights, causing less accurate weather forecasts worldwide. Weather forecasts are crucial for daily life, impacting agriculture and the energy sector.
The research team created better climate model simulations that predict variation in monsoon rainfall the following season, with improved forecasts for the Indian subcontinent. The new model uses complementary satellite data to quantify the connection between snow pack characteristics and monsoon strength over the Asian monsoon region.
Tropical Depression 6E has several small areas of strong storms with cold cloud top temperatures, indicating potential for heavy rainfall. The depression is expected to dissipate due to colder sea surface temperatures and lack of intensity requirements.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.