Articles tagged with Weather Forecasting
Infrared light analysis from NASA's Aqua satellite shows wind shear pushing Marie's strongest storms east of the center, with cloud top temperatures as cold as minus 50 degrees Fahrenheit. The storm is expected to weaken and degenerate into a remnant low by Tuesday night.
Researchers from Nanjing University of Information Science & Technology evaluate subseasonal prediction skill for heatwaves in Yangtze River basin using long-term hindcast data from three operational models. They found that superior model fidelity is crucial to predicting heatwave occurrence, intensity and duration at longer lead times.
Hurricane Marie is rapidly growing stronger and more powerful, with cloud top temperatures reaching as low as -80°F. The National Hurricane Center expects Marie to become a major hurricane late on Oct. 1, with rapid strengthening forecasted.
Tropical Storm Marie is generating heavy rainfall, with estimated rates of 30-40 mm/h near its center. The storm's structure has been improving, and NASA satellite data suggests rapid intensification is likely.
Tropical Storm Kujira's strongest storms were located near its center and in a band of thunderstorms on the western side, with cloud top temperatures as cold as minus 80 degrees Fahrenheit. NASA analyzed infrared imagery to determine the storm's strength and predict its potential for heavy rain.
NASA's Aqua satellite detected infrared data showing westerly vertical wind shear pushing strongest storms east of Tropical Storm Lowell's center, indicating wind shear. The storm's convection and distance from the center were on the margins of organized deep convection.
Post-Tropical Cyclone Beta is covered in clouds stretching from Mississippi to the Carolinas, according to NASA imagery. The storm was moving slowly northeast and had decreased in pressure and wind fields by September 25.
Tropical Storm Lowell was impacted by moderate northwesterly wind shear, weakening its circulation and causing it to spin more slowly. The storm maintained strength with deep convection bands located east of the exposed center.
NASA estimated Post-tropical Cyclone Beta's rainfall rates as it moved over Mississippi, Alabama, and Tennessee, with heavy rainfall across the region expected. The storm is generating rain at a rate of 10-15 mm per hour over Alabama, while lighter rainfall rates occurred over Mississippi and Tennessee.
A Rutgers study suggests that 5G wireless networks may impact the accuracy of weather forecasts. The study found that even low levels of 5G radiation can affect precipitation and temperature predictions by up to 0.9 millimeters and 2.34 degrees Fahrenheit, respectively.
Dolphin, a tropical cyclone, transformed into an extratropical storm after passing east central Japan. The storm's wind speeds decreased to near 30 knots (35 mph) as it became quasi-stationary and fully embedded in the baroclinic zone.
Paulette formed as Tropical Depression Seventeen and became a hurricane, then weakened into a post-tropical cyclone. NASA's Terra satellite found only one small area of convection with cloud top temperatures as cold as minus 50 degrees Fahrenheit.
Tropical Storm Lowell is moving west-northwest with increasing winds and no coastal watches in effect. NASA's Aqua satellite identified the strongest thunderstorms south of the storm's center, indicating potential for heavy rainfall. The storm's forecast suggests little change in strength over the next few days.
Tropical Storm Dolphin battled intense wind shear as it approached east central Japan. Despite strong vertical wind shear, the storm remained consolidated with strong thunderstorms and a low-level circulation center. NASA's Terra satellite captured visible images of the storm, providing valuable data for hurricane research.
Tropical Storm Beta is expected to stall inland over Texas today, bringing heavy rains and flash flooding. NASA's Aqua satellite analyzed the storm using infrared data, revealing coldest cloud top temperatures as cold as minus 63 degrees Fahrenheit.
Tropical Storm Lowell's strongest storms were located around its center and southern quadrant, with cloud top temperatures as cold as minus 80 degrees Fahrenheit. Wind shear played a significant role in the storm's formation and strength, with NASA providing data to support forecasters' predictions.
Researchers at Dauphin Island Sea Lab found that pre-storm oceanic environments contribute to hurricane intensification. Marine heatwaves, like those caused by Hurricane Michael, can prime the coastal waters for extreme storm events.
Wilfred weakened into a trough in the Central Atlantic Ocean, with maximum sustained winds near 35 mph and forecasters expect winds to continue decreasing. The system's interaction with an upper-level trough led to linear thunderstorm development.
Hurricane Teddy's rainfall rates were estimated at around 30 mm per hour near the center of circulation, with heavier rain showers expected across Atlantic Canada between Tuesday and Thursday. The storm is forecasted to transition into a powerful post-tropical cyclone, posing risks of wind, rain, and storm surge impacts.
Tropical Storm Dolphin formed from Tropical Depression 14W, strengthening with deep convection and organized thunderstorms. The storm is expected to move north and then northeast, potentially strengthening to 55 knots.
Tropical Depression 22 is strengthening in the Gulf of Mexico, with NASA-NOAA's Suomi NPP satellite providing infrared images. The depression is forecast to move slowly and could strengthen into a hurricane by Sunday.
A new forecasting method, developed with public input, shows increased accuracy in predicting coronal mass ejections and their impact on Earth. The Solar Stormwatch project demonstrated the value of wide-field CME imaging cameras on future space weather monitoring missions.
Subtropical Storm Alpha has formed near Portugal, with NASA's Aqua satellite capturing visible imagery of the storm. The storm is expected to move across the coast of west-central Portugal, producing 1-2 inches of rainfall and rapid weakening over land. Maximum sustained winds are near 50 mph, with higher gusts.
Tropical Storm Noul made landfall in central Vietnam on Sept. 17 and was weakening as it moved toward Thailand. The Suomi NPP satellite captured an image of the storm over Laos, showing a shapeless appearance with a difficult-to-find low-level center.
Tropical cyclone Noul is characterized by hundreds of thunderstorms, with infrared data revealing the strongest storms are located at high altitudes. NASA's MODIS instrument detected cold cloud top temperatures as low as minus 80 degrees Fahrenheit near Noul's center.
NASA's Aqua satellite detected the strongest storms on Hurricane Teddy's western side, with coldest cloud top temperatures as low as -81 degrees Celsius. This suggests that the storm is experiencing westerly wind shear, a phenomenon that can lead to heavy rain.
A new Great Lakes model has been developed to improve the operational forecast system, providing more accurate predictions of water levels, temperatures, and currents. The model incorporates data assimilation techniques, which combine observational data and numerical model results to produce a more accurate estimate.
Teddy is consolidating in the Central North Atlantic Ocean with improved circulation and increasing maximum sustained winds. The storm's structure is slowly improving, with stronger thunderstorms around its core.
NASA's Aqua satellite found structural changes and the strongest side of Hurricane Paulette as it moved away from Bermuda. The storm is expected to undergo extratropical transition, weakening rapidly on Wednesday.
Tropical Depression Rene is expected to degenerate due to strong wind shear and dry air entrainment. The NASA Aqua satellite monitored cloud top temperatures, confirming the impact of wind shear on the storm's organization and strength.
NASA uses infrared data from the Aqua satellite to analyze low-pressure areas developing in the eastern Atlantic Ocean. The data reveals cloud top temperatures as cold as minus 63 degrees Fahrenheit, indicating strong storms capable of heavy rain.
Researchers found that true forecast track error increases exponentially with lead time, implying dynamics of TC motions are linear and model-induced errors in TC position forecasts are minimal. The team's 4-parameter error model indicates potential extension of predictability limit beyond 6/8 days in 10/30 years' time.
Tropical Storm Rene appears more organized as wind shear eases, becoming slightly circular on satellite imagery. The storm is forecast to strengthen into a hurricane by Saturday, Sept. 12, with no expected landfall impact.
Tropical Storm Paulette set a new record for the earliest 16th named storm of any Atlantic season by 10 days. The storm's organization improved significantly since September 7, with forecasters noting improved convection and wind shear restrictions.
Tropical Storm Rene, formed on September 7 in the North Atlantic, brought strong winds and heavy rain to Cabo Verde Islands. The storm's center was located near latitude 16.5 degrees north and longitude 26.5 degrees west, with maximum sustained winds of 40 mph.
Haishen has strengthened into a Category 4 hurricane/typhoon with sustained winds near 140 knots (161 mph/259 kph), forecast to peak later on Sept. 4 and make landfall in South Korea after 3 days.
Tropical Depression Omar is being affected by persistent wind shear, which is weakening the storm's rotation and inhibiting thunderstorm development. The NASA Aqua satellite has provided temperature information about the system's clouds, confirming the presence of wind shear.
Typhoon Haishen has a 10 nautical-mile wide eye surrounded by hundreds of miles of thunderstorms, intensifying to 130 knots with forecast landfall in South Korea. NASA's Terra satellite captures visible images revealing deep convection and spiral banding.
Maysak made landfall on Sept 2 at 12 miles west of Busan, South Korea, with maximum sustained surface winds of 64 knots. The storm underwent extra-tropical transition, gaining frontal characteristics, and is forecast to deepen as a low-pressure area over North Korea and China.
Tropical Storm Omar was weakened to a depression as it continued to be battered by strong upper-level winds, according to NASA's Terra satellite imagery. The storm's wind shear pushed clouds east of the center, leading to its downgrade from a tropical storm.
Tropical Storm Omar formed on Sept. 1 off the coast of North Carolina, becoming the earliest 15th storm on record. NASA's satellite data revealed wind shear affecting the storm, causing it to strengthen and potentially generate heavy rainfall. The storm is now expected to weaken and become a remnant low-pressure area by Thursday, Sept. 3.
Researchers used Loon LLC's data from high-flying balloons to calculate gravity wave motions, finding larger waves in the tropics during summer and smaller waves near the poles during winter. The study's findings help constrain circulation responses to climate change and improve regional weather forecasts.
Tropical Storm Nana has strengthened in the Caribbean Sea, with NASA's Terra satellite analyzing cloud top temperatures to monitor its progress. The storm is expected to become a hurricane by tonight, posing warnings and watches for areas in Central America and Belize.
Hurricane Laura made landfall as a powerful Category 4 hurricane along the Louisiana coast, with sustained winds near 150 mph and a clear circular eye. NASA-NOAA's Suomi NPP satellite captured a nighttime image of the storm just after landfall.
Post-tropical cyclone Marco has weakened toward dissipation after passing over the Gulf of Mexico, with NASA's Terra satellite capturing its final stages. The storm made landfall near the mouth of the Mississippi River and was pushed northeast by southwesterly wind shear.
Researchers successfully predicted a 2018 dengue outbreak in Réunion using subseasonal climate forecasts and mosquito population models. The study demonstrates the potential for using climate data to predict vector-borne disease suitability.
Tropical Storm Laura continues to move through the Caribbean Sea, producing heavy rainfall and potentially life-threatening flash flooding. NASA's infrared data reveals powerful storms with cold cloud top temperatures, affecting Jamaica and Cuba.
Tropical Depression 14 is forecast to strengthen into a tropical storm and potentially become a hurricane, according to NASA's Terra satellite data. The depression's coldest cloud top temperatures were as cold as minus 60 degrees Fahrenheit, generating heavy rainfall and affecting Mexico's Yucatan Peninsula.
Hurricane Genevieve's size and strength were revealed through NASA's wide-angle photos, showing a clear eye surrounded by powerful thunderstorms. The storm's wind field expanded, affecting the Baja California peninsula with strong winds, heavy rainfall, and large ocean swells.
Tropical Storm Higos made landfall in Guangdong Province, China, with strong thunderstorms and bands of thunderstorms over the South China Sea. The storm was weakening and moving northwest, expected to dissipate within a day.
Researchers describe daily variability of key deep currents in the South Atlantic Ocean, with variations linked to climate and weather globally. The study found that upper and deeper layers behave independently, impacting sea level rise and hurricane intensification.
Tropical Storm Josephine weakened on August 16, with satellite imagery showing it had become elongated and stretched out into a trough of low pressure. The storm's cloud top temperatures were near minus 70 degrees Fahrenheit, indicating it was degenerating rapidly.
Genevieve strengthened into a hurricane, with the most powerful thunderstorms in its eyewall having coldest cloud top temperatures as low as minus 70 degrees Fahrenheit. The storm is expected to become major and bring life-threatening surf and rip current conditions to Mexico's southern coast.
Tropical Storm Josephine is being affected by southwesterly wind shear, which is pushing clouds and precipitation to the northeast of its center. This wind shear is expected to continue, potentially affecting the storm's trajectory and weakening it over the next couple of days.
Tropical Depression 10E is struggling to intensify due to strong northeasterly wind shear, according to NASA's Suomi NPP satellite imagery. The depression has maintained a small ragged band of convection in its southwest quadrant despite the adverse conditions.
Hurricane Elida's eye has become fully covered by high clouds, a sign of the storm weakening due to cooler waters. The storm is expected to weaken quickly and degenerate into a remnant low-pressure area on Thursday.
Typhoon Mekkhala made landfall in Fujian, southeastern China, generating at least 170 mm of rainfall. The storm's maximum sustained winds were near 70 knots (81 mph) at landfall.
Tropical Depression 06W is being weakened by vertical wind shear and dry air, with maximum sustained winds near 25 knots (29 mph/46 kph). The storm formed two days ago near latitude 26.1 degrees north and longitude 147.6 east.
Tropical Storm Jangmi transitioned into an extra-tropical storm on Aug. 11, located near latitude 26.9 degrees north and longitude 130.4 degrees east, about 139 miles northeast of Chinhae, South Korea. The storm had maximum sustained winds of 35 knots (40 mph) and was speeding to the north-northeast.
Tropical Depression 09E strengthened into Tropical Storm Elida, with maximum sustained winds near 65 mph and a central pressure of 995 millibars. Infrared imagery from NASA's Aqua satellite confirmed the storm's transition, revealing powerful thunderstorms with cold cloud top temperatures indicating heavy rainfall potential.