Articles tagged with Weather Forecasting
Typhoon Nakri intensified into a stronger typhoon after satellite imagery showed better organization and increased winds, moving westward towards Vietnam. The Joint Typhoon Warning Center expects landfall on Nov. 10 or 11, near Danang.
Tropical Storm Matmo is located in the center of the Bay of Bengal with maximum sustained winds near 63 mph. The storm will strengthen to 85 knots but weaken rapidly before making landfall just east of Kolkata on Nov. 9.
Tropical Storm Nakri, known as Quiel in the Philippines, has maintained strength with maximum sustained winds near 60 knots (69 mph/111 kph). The storm is forecast to cross the South China Sea and make landfall in Vietnam on Nov. 12, potentially affecting Kalayaan municipality.
Super Typhoon Halong has peaked in intensity and is now on a weakening trend, according to NASA-NOAA's Suomi NPP satellite. The storm's maximum sustained winds have decreased to 155 mph, with a gradual increase in forward speed expected by Saturday.
Tropical Cyclone Maha's shape is a key indicator of its strength. The storm's eroding structure, as observed by NASA-NOAA's Suomi NPP satellite, suggests it is weakening due to dry air inhibition.
Tropical Storm Nakri, also known as Quiel in the Philippines, has become better organized and more circular over the past 24 hours. Forecasters expect the system to intensify to 50 knots before making landfall in Vietnam on November 10.
The remnants of Tropical Cyclone Matmo are being monitored by NASA's Aqua satellite for signs of regeneration. Forecasters believe the low-pressure system has developed thunderstorms and is moving north towards Bangladesh.
Tropical Cyclone Maha was a powerful storm with the potential to generate heavy rainfall, as revealed by NASA's infrared analysis. The storm had maximum sustained winds near 100 knots and circling strongest storms at cloud top temperatures of minus 80 degrees Fahrenheit.
NASA's Terra Satellite captures Post-Tropical Cyclone Rebekah as a remnant low-pressure area, devoid of deep convection and strong thunderstorms. Rebekah is expected to weaken into a trough or elongated area of low pressure between 12-24 hours.
NASA's Aqua satellite analyzed cloud top temperatures to identify the strongest storms in Tropical Cyclone Maha, indicating a high risk of heavy rain over Lakshadweep Islands. The storm is forecast to move northwest and turn west into the central Arabian Sea.
NASA's Global Precipitation Measurement mission found a small area of heavy rain in Tropical Cyclone Kyarr, with rainfall rates reaching 1.6 inches per hour around the storm's center. The weakening storm is expected to dissipate before reaching Socotra Island.
Tropical Storm Maha has developed near the southwestern Indian coast and is strengthening, as indicated by its symmetrical shape. The storm's center is located approximately 848 nautical miles south-southeast of Karachi, Pakistan, with forecasted northwest movement over the next couple of days.
Tropical Storm Matmo is taking on a more rounded shape, indicating it's strengthening, and is expected to make landfall in central southeastern Vietnam. The storm's maximum sustained winds are near 46 mph with higher gusts.
Researchers developed an AI-based ozone forecasting system that can predict ozone levels with 85-90% accuracy. The model uses convolutional neural networks to analyze current conditions and forecast future ozone levels, improving health alerts for people at risk.
Tropical Cyclone Kyarr is a powerful storm with an organized eye, producing deep convection and strong thunderstorms. Forecasted to turn southwest and make landfall in Somalia, the cyclone's trajectory may be influenced by two large areas of high pressure.
NASA provided forecasters with an analysis of rainfall rates in Tropical Cyclone Kyarr, measuring rainfall at over 40 mm per hour. The storm's cloud top temperatures were as cold as minus 63 degrees Fahrenheit, producing heavy rain.
Tropical Storm Pablo formed on Oct. 25 and strengthened into a hurricane before weakening back into a tropical storm. NASA's satellite imagery captured the storm's formation and rapid changes, revealing a small-scale cyclone with well-defined winds within a larger low-pressure area.
Tropical Depression 17 formed over the Gulf of Mexico, with maximum sustained winds near 35 mph and a minimum central pressure of 1006 millibars. The depression is expected to merge with a cold front, bringing gale-force winds and heavy rainfall to the northern Gulf coast.
Tropical Storm Kyarr formed quickly near the southwestern coast of India, intensifying into a storm with heavy rainfall warnings and gale-force winds forecasted. NASA's Aqua satellite provided visible images revealing a large band of powerful thunderstorms circling the low-level center of circulation.
Typhoon Bualoi continues to move through the Northwestern Pacific Ocean, experiencing heavy rain around its eye, falling at a rate of over 50 mm/hour. Forecasters incorporate the rainfall data into their forecasts for updated hurricane weather information.
Typhoon Bualoi is expected to intensify through Thursday and then begin weakening as it moves in a northerly track. The storm's strong winds and heavy rain are a concern for the affected islands.
Typhoon Bualoi rapidly intensified over 24 hours, developing an eye and powerful thunderstorms. The storm's organization and strength were assessed using satellite imagery provided by NASA-NOAA's Suomi NPP satellite.
The Suomi NPP satellite captured night-time and infrared images of Tropical Storm Nestor on Oct. 18, revealing lightning, overshooting cloud tops into the stratosphere, and gravity waves. Powerful thunderstorms around the storm's center generated these waves in quick bursts.
Tropical Storm Neoguri has become more organized over the past 24 hours, according to NASA-NOAA satellite data. The storm was classified as a tropical depression for days before consolidation on October 18, and is expected to strengthen before weakening.
Tropical Storm Octave formed on Oct. 17 as a tropical depression in the Eastern Pacific Ocean, with cloud top temperatures reaching -70 degrees Fahrenheit. The storm is expected to weaken due to wind shear and movement out of the Intertropical Convergence Zone (ITCZ), forecasted to degenerate into a remnant low over the weekend.
NASA's Terra satellite captured an image of Tropical Depression Fifteen on Oct. 16, revealing its elongated shape and weakening circulation. The system had degenerated into a trough of low pressure, marking the end of its life cycle.
Subtropical Storm Melissa forms off the New England coast, bringing strong winds and coastal flooding to the mid-Atlantic region. The National Hurricane Center predicts gradual weakening over the next few days, with Melissa expected to lose its subtropical characteristics by Saturday night.
Typhoon Hagibis has weakened to a typhoon status after being a super typhoon, with NASA-NOAA's Suomi NPP satellite providing visible imagery of the storm. The image showed a cloud-filled eye surrounded by powerful thunderstorms and a large tail of clouds stretching along Japan's east coast.
Carnegie Mellon University has been designated as a CDC flu forecasting center of excellence, receiving $3 million in funding to develop more accurate forecasting tools. The new center will also explore how to effectively communicate forecast information to the public and leaders.
Lorenzo has transitioned to an extra-tropical cyclone, bringing hurricane-force winds and heavy rainfall to Ireland and the United Kingdom. The GPM core satellite detected heavy rainfall north of the center, with rates reaching over 1 inch per hour.
Tropical Storm Mitag was dropping heavy rainfall along South Korea's coastal areas, with light rain falling over the rest of the country. The Global Precipitation Measurement mission found heaviest rain in scattered areas over eastern and southern coasts.
Hurricane Lorenzo, a very large tropical cyclone, is moving towards the northeast at 22 mph. The storm has grown in size, with hurricane-force winds extending up to 90 miles from its center.
A low-pressure system formerly known as tropical cyclone Narda is generating scattered light rain in the eastern side of its remnant clouds. Forecasters expect additional rainfall of up to 2 inches across parts of Chihuahua and Sonora, with moisture spreading northeastward across US Southern Plains.
Typhoon Mitag has pushed its clouds and precipitation north of its center, extending over the Korean Peninsula and southern Japan. The storm appears to be weakening due to this decoupling of deep convection from the center.
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.
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.
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.
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.
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.
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.
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 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 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 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.
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.