Articles tagged with Weather Forecasting
Typhoon Mitag continues to produce strong thunderstorms around its cloud-filled eye, affecting Taiwan and forecasted to graze China's east coast. The storm is at peak intensity, moving northwards with maximum sustained winds near 75 knots.
Hurricane Lorenzo attained Category 5 strength briefly, becoming the strongest hurricane on record in the eastern-most Atlantic Ocean. The Suomi NPP satellite provided infrared data that showed changes in the storm's eye and powerful thunderstorms, and mesospheric gravity waves were also observed.
Tropical Storm Narda is expected to produce heavy rainfall along Mexico's west coast, with potential accumulations ranging from 1-6 inches. NASA's Aqua satellite captured images of the storm, revealing deep convection and cloud tops colder than minus 80 degrees Celsius.
Tropical Depression 19W is organizing and strengthening toward tropical storm status. The storm has developed strong thunderstorms around its center with winds near 29 mph/46 kph, and forecasters expect it to move west-northwest and then turn north.
Satellite images from NASA's Terra Satellite confirmed Hurricane Lorenzo as a major hurricane with a clear eye and solid structure of thunderstorms. The storm is moving north-northwest at 14 mph, with maximum sustained winds near 145 mph.
Tropical cyclones strengthen when cloud tops rise, indicating increased thunderstorm activity. NASA's Terra Satellite data indicates that Tropical Storm Karen is holding onto its tropical storm status due to rising cloud tops above 12,000 meters.
Hurricane Lorenzo has strengthened, becoming more organized with a rounded shape indicating intensification. The storm's eye is rapidly appearing in conventional satellite imagery, surrounded by very cold cloud tops.
NASA's Terra satellite captured an image of Tropical Storm Karen showing strongest thunderstorms west of center, indicating weakening. The storm is forecast to become a remnant low by Sunday with wind speeds near 45 mph and minimum central pressure at 1004 millibars.
Hurricane Lorenzo's cloud top temperatures dropped to minus 121 Fahrenheit, indicating increased strength, with maximum sustained winds reaching 85 mph. The storm is forecast to become a major hurricane by Thursday and will continue moving west-northwest.
NASA's Global Precipitation Measurement mission detected scattered light rain from the remnants of Hurricane Kiko, which weakened to a remnant low-pressure area on September 24. The rainfall data is used by forecasters at NOAA's National Hurricane Center to improve forecasts.
Tropical Storm Karen has brought heavy rain to Puerto Rico, with the GPM core satellite detecting rainfall rates exceeding 1.6 inches per hour in the Atlantic Ocean and central Puerto Rico. Forecasters predict additional rainfall accumulations of 1-2 inches across the territory.
Jerry has been designated a post-tropical cyclone due to the lack of strong thunderstorms in recent satellite imagery. The post-tropical storm is expected to produce 1 inch or less of rainfall across Bermuda through tonight, with swells continuing to affect the island over the next few days.
Tropical Storm Jerry is weakening due to strong vertical wind shear and an intruding dry atmosphere, causing its cloud pattern to deteriorate. The storm's shape is becoming elongated, indicating it is losing strength. Forecasters expect gradual weakening over the next few days.
A new standard of reference for assessing solar forecast has been proposed, combining climatology and persistence methods to gauge forecaster performance. The combined approach provides a way to compare forecasters' skills and determine the best forecasting methods.
Tropical Storm Lorenzo is strengthening and becoming more organized, with a rounded shape indicating intensification. The storm is moving towards the west-northwest at 16 mph, surrounded by warm waters and humid air, setting conditions ripe for further intensification.
A NASA satellite analyzed cloud heights and temperatures of Tropical Storm Kiko before wind shear weakened the storm. The data showed that higher cloud tops indicate strengthening storms, while falling cloud tops suggest weakening.
Cyclone Hikaa is located near latitude 19.9 degrees north and longitude 58.4 degrees east, just 38 nautical miles southwest of Masirah Island. The storm is approaching landfall in Oman near Duqm with gusty winds and heavy rainfall.
Tropical Storm Karen has regained strength due to powerful thunderstorms re-developing around its center. Cloud top temperatures as cold as minus 80 degrees Fahrenheit indicate the presence of capable storms that can produce heavy rainfall.
Tropical Storm Jerry's organization and strength are affected by wind shear, pushing clouds away from the storm's center. The shape of the storm provides forecasters with an idea of its internal structure, while wind shear weakens rotation by pushing it apart at different levels.
NASA's Suomi NPP satellite tracked Tropical Storm Karen as it formed in the Caribbean Sea and encountered wind shear, causing its shape to become less organized. The storm is expected to bring heavy rains and gusty winds to Puerto Rico and the Virgin Islands.
Tropical cyclone Hikaa has strong storm activity, with cloud top temperatures reaching -63°C, indicating heavy rain potential. NASA's AIRS instrument analysis provided critical data to forecasters worldwide.
Tropical Storm Kiko exhibits a tight circulation center with low clouds and deep convection. The storm is forecast to strengthen briefly before weakening and potentially becoming a remnant low later this week.
NASA's Global Precipitation Measurement mission detected intense rainfall rates in Tropical Storm Lorenzo, with the heaviest downpours occurring near the storm's center. The tropical cyclone is forecast to strengthen and become a hurricane by Wednesday, posing a threat to interests in the Cabo Verde Islands.
Tropical Storm Lorena made landfall in northwestern Mexico after approaching the country, bringing heavy rainfall to Arizona. The NASA-NOAA Suomi NPP satellite provided key imagery of the storm's shape and organization, helping forecasters prepare for potential flooding and severe thunderstorms.
Tropical Storm Tapah exhibits a large thunderstorm band resembling a tail on NASA satellite imagery, suggesting better organization. The storm is also showing signs of strengthening, with forecasters predicting it will move north-northeast through the Sea of Japan.
NASA-NOAA's Suomi NPP satellite used infrared light to analyze Hurricane Jerry's strength, finding cloud top temperatures as cold as minus 70 degrees Fahrenheit. This indicates strong storms with the potential to generate heavy rainfall, posing a life-threatening threat to the Northern Leeward Islands.
A Japanese research team found that incorporating radiosonde data from Antarctica improves forecasting accuracy for severe cyclones. The study successfully predicted the central pressure, wind speed, and moisture transport of an extreme cyclonic event 2.5 days in advance.
NASA measured rainfall rates in Hurricane Lorena and Tropical Storm Mario, with the heaviest rainfall occurring in the eastern side of Lorena. Forecasters predict up to 8 inches of rain, potentially causing flash flooding.
Satellite images show Humberto transitioning to an extratropical cyclone, with frontal features and cooler air wrapping around the circulation. The system is expected to become a large and powerful extratropical cyclone before being absorbed by another low-pressure area.
Tropical Storm Mario has lost its rounded shape, indicating weakening, according to NASA-NOAA satellite imagery. Wind shear is affecting the storm, with powerful thunderstorms stretching high into the troposphere, suggesting heavy rainfall potential.
A recent study published in Science finds that investing in climate change mitigation can save more money than the costs of climate change itself. The research highlights the benefits of limiting global warming to 1.5°C and suggests that rapidly reducing greenhouse gas emissions is essential to avoid catastrophic consequences.
NASA's Aqua Satellite provided visible data on Major Hurricane Humberto, revealing powerful thunderstorms and a shift in its structure. The storm is expected to weaken today and become a post-tropical cyclone by Friday, with hazardous conditions persisting along the coast of Bermuda.
Tropical Storm Lorena's strong bands of thunderstorms swept over the western parts of Michoacan and Colima states, bringing heavy rainfall and life-threatening flash floods. The storm's center moved along the southwestern coast of Mexico, with maximum sustained winds reaching near 70 mph.
GPM core satellite measured rainfall rates throughout Tropical Storm Tapah, revealing rates as high as 1.6 inches per hour at the storm's center. Forecasters incorporate this data into their forecasts to predict the storm's trajectory and strength.
A new study suggests that acting on climate change will cost less than the damage inflicted by inaction. The research warns of catastrophic consequences if efforts are not accelerated to reduce global warming. Experts emphasize the urgency of addressing climate change.
The Global Precipitation Measurement mission's core satellite measured rainfall rates throughout Tropical Storm Jerry, revealing heavy rainfall on the eastern and southern sides of the storm. The data is used by forecasters at NOAA's National Hurricane Center to inform their forecasts and warnings.
Tropical Storm Kiko maintained its strength and shape after weakening from hurricane-force, with strong bands of thunderstorms visible in satellite imagery. The storm is forecast to slowly strengthen and potentially regain hurricane strength on Friday.
Tropical Depression Imelda brought heavy rainfall to northeastern Texas, with NASA estimating over 10 inches of rain fell between Houston and Beaumont. The storm's rainfall totals are expected to produce significant flash floods, prompting flash flood watches for parts of eastern Texas and western Louisiana.
Tropical Storm Kiko's circular area of strong storms was observed by NASA-NOAA's Suomi NPP satellite on Sept. 17, showing bands of thunderstorms over the northern and western quadrants. The storm is moving west-southwest at 6 mph with maximum sustained winds near 60 mph.
Tropical Storm Jerry developed in North Atlantic Ocean this season, with NASA-NOAA's Suomi NPP satellite providing crucial images of its structure. The storm showed strong bands of thunderstorms, indicating better organization, and forecasters confirmed its strengthening due to warm waters and low wind shear.
A team of scientists at Northern Illinois University successfully forecasted the nation's extensive tornado outbreak in late May 2019, three to four weeks before it occurred. The prediction used historical weather-pattern records and methodologies to predict severe weather across the continental United States with extended lead times.
Tropical Storm Mario is intensifying with heavy rainfall rates of over 36 mm per hour. The storm is expected to become nearly stationary from early Friday through early Saturday, with maximum sustained winds increasing to near 65 mph.
NASA's AIRS instrument captured temperatures in Tropical Depression Imelda, providing insight into the storm's rainfall potential over eastern Texas. Forecasters incorporated the data into their forecasts, predicting heavy rains and significant flash flooding along the Gulf Coast.
A team of researchers has developed a new volcano eruption forecasting technique using the Kalman filtering method, which captures the unique unrest patterns of the Okmok volcano in Alaska. The study reveals that past eruptions are key to understanding the likelihood of future volcanic activity.
NASA used infrared data to analyze Tropical Storm Faxai, revealing powerful storms just offshore of Japan. The satellite found coldest cloud top temperatures as cold as -63 degrees Fahrenheit around Faxai's center.
Fragmented strong storms remain in the remnants of Tropical Storm Fernand, capable of generating heavy rainfall. The storms were detected by NASA's Aqua satellite using infrared light, with cloud top temperatures as cold as -70 degrees Fahrenheit.
NASA's Aqua satellite captured an image of Hurricane Juliette over Socorro Island in the Eastern Pacific Ocean. The storm's strong thunderstorms affected the island with heavy rainfall. NASA's research indicates that cold cloud top temperatures are indicative of powerful storms capable of creating heavy rain.
NASA used its Aqua satellite to analyze Tropical Storm Fernand's strength before it made landfall in northeastern Mexico. The storm had coldest cloud top temperatures as cold as minus 63 degrees Fahrenheit, indicating strong storms with heavy rain potential.
Tropical Depression 7 has powerful thunderstorms with heavy rain capabilities affecting southern Texas and northeastern Mexico. NASA's Aqua satellite analysis found strongest storms in fragmented bands, with cloud top temperatures as cold as minus 70 degrees Fahrenheit.
Hurricane Dorian has strengthened to near 110 mph with higher gusts, threatening the Bahamas and southeastern US with life-threatening storm surge and heavy rainfall. The storm is expected to produce 6-12 inches of rain and cause life-threatening flash floods.
NASA's fleet of satellites is gathering data on Hurricane Dorian, helping scientists understand its structure and predict its path. The storms maximum sustained winds are currently at 115 mph with higher gusts, posing a significant threat to Florida and the northwestern Bahamas.
Extra-Tropical Storm Erin has merged with a frontal system off the US east coast, according to NASA data. Cloud top temperatures as cold as minus 70 degrees Fahrenheit indicate strong storms with heavy rainfall potential.
Tropical Storm Podul is expected to make landfall on August 29 in central and north Vietnam. The storm is currently located about 108 nautical miles north of Da Nang, Vietnam, with maximum sustained winds of 35 knots.
NASA's Terra satellite captures images of Hurricane Dorian near St. Thomas on August 28, 2019, confirming its Category 1 status. The storm is expected to continue strengthening over the Atlantic waters, posing a threat to the U.S. and British Virgin Islands, Puerto Rico, and other regions.
Tropical Depression 10E has formed in the Eastern Pacific Ocean, with NASA's GOES-West satellite capturing its formation near latitude 15.4 degrees north and longitude 107.3 degrees west. The depression is expected to strengthen over the next couple of days, potentially becoming a tropical storm by tonight and a hurricane by Friday.
A new machine learning method, MOML, simulates weather consultation to improve forecast accuracy by 27.91% compared to ECMWF model forecasts. The approach leverages observational data and both high- and low-frequency information for more accurate results.
Scientists trained a deep learning model to recognize features of individual storms that affect hail formation and size, improving prediction accuracy by up to 10%. The study highlights the importance of considering a storm's entire structure in hail forecasting.
NASA's Aqua satellite analyzed Tropical Storm Krosa's cloud top temperatures on Aug. 15, revealing the strongest storms south of the center. The analysis found coldest cloud top temperatures as cold as minus 63 degrees Fahrenheit, indicating strong storms capable of creating heavy rain.
A new approach developed at Penn State's Center for Advanced Data Assimilation and Predictability Techniques can accurately forecast the intensity and trajectory of Hurricane Harvey. The method uses data from the GOES-16 satellite and Penn State's all-sky radiance technique, which more accurately models hurricanes.
Typhoon Lekima made landfall in China on Aug. 10, causing billions of dollars in damage and fatal outcomes. NASA's Terra satellite captured visible images of the storm's remnant clouds over the Northwestern Pacific Ocean, prompting severe weather warnings from China's National Meteorological Center.