Articles tagged with Weather Forecasting
The University of Oklahoma is developing the fastest and most advanced radar in the nation with a $3.4 million grant. The HORUS radar can scan the atmosphere in 30 seconds or less and distinguish between snowflakes, raindrops, hail stones or other targets within a storm, critical for forecasting and prediction.
Researchers at Penn State have developed a new weather model that incorporates data from next-generation satellites to improve tornado forecasting. The model was able to forecast supercell thunderstorms with high accuracy and suggests that lead times for tornado warnings can be extended beyond 30 minutes.
Typhoon Trami displays symmetrical shape and large eye as it approaches Japan's southern islands. Maximum sustained winds reach near 90 knots, forecast to impact Okinawa Island and surrounding areas.
Tropical Storm Kirk brought intense rain to the Leeward Islands on September 28, with the heaviest downpours recorded near its center. The Global Precipitation Measurement mission detected hourly rainfall rates of up to 4 inches per hour, posing a risk of life-threatening flash floods and mudslides.
Tropical Depression 29W has been issued a warning by the Joint Typhoon Warning Center, located near Iwo To off Japan's eastern coast. The storm is expected to strengthen but become extratropical in 24 hours, posing no immediate threat to land masses.
Typhoon Trami was imaged by NASA-NOAA's Suomi NPP satellite on September 25, showing a wide eye and convection patterns. Cloud top temperatures near 190 Kelvin indicate potential heavy rainfall.
Tropical Storm Trami is expected to intensify through Saturday, bringing powerful storms with cloud tops as cold as minus 70 degrees Fahrenheit. A flash flood watch has been issued for Guam and the northern Marianas due to heavy showers and thunderstorms associated with the storm.
Adding Arctic weather observations can help predict tropical cyclones' tracks and intensity more accurately, reducing extreme weather event risks. The study used radiosonde data from the Arctic to forecast three tropical cyclones, showing improved predictability with additional observations.
Florence brought massive rainfall to the Carolinas, exceeding 30 inches in some areas, causing record or major flooding along many rivers. The storm's heavy rainfall caused widespread damage and at least 20 fatalities.
Hurricane Florence made landfall near Wrightsville Beach, North Carolina, bringing estimated maximum winds of 90 mph and a minimum central pressure estimate of 958 millibars. The storm's infrared imagery showed the power and extent of its massive storm system.
The TORUS project aims to collect high-resolution data from within severe storms to improve forecasting for tornadoes and severe storms. The research goal is to improve the conceptual model of supercell thunderstorms by exposing hidden structures that lead to tornado formation.
Tropical Storm Helene is battling wind shear, causing a Tropical Storm Warning for the Azores Islands. Wind shear is weakening the storm's rotation and pushing strongest storms northeast of the center.
Subtropical Storm Joyce is disorganized and wandering in the north central Atlantic Ocean, according to NASA satellite imagery. The system's patchy development of thunderstorms indicates a lack of organization, which may lead to heavy rain generation.
A new study uses weather forecasts and machine learning to predict bird migration across the United States, explaining 80% of variation in intensity. This tool helps reduce human-made threats during the migration journey, crucial for conserving migratory birds.
A new forecasting model uses Next-Generation Radar data to capture migratory patterns of birds with high spatial accuracy, explaining up to 81% of variation in migration timing and intensity across the U.S. The model can forecast movements up to a week ahead and estimate total bird numbers making the journey.
Hurricane Florence's powerful winds and storm surge are being closely monitored by NASA. The satellite images reveal a weakened eye due to southern shear, with cloud tops as cold as -80F (Celsius). This suggests potential for heavy rainfall.
The USDA Forest Service introduces the Hot-Dry-Windy Index (HDW) to predict wildland fire danger, leveraging temperature, moisture, and wind variables. Researchers tested HDW against existing indexes and found promising results, with potential applications worldwide.
Super Typhoon Mangkhut strengthened into a Category 4 storm with sustained winds of 155mph. The National Weather Service predicts further intensification to Category 5 by Wednesday and Thursday.
Hurricane Olivia is expected to bring heavy rainfall and strong winds to the Hawaiian Islands as it moves towards the state. The storm's cloud tops have temperatures near minus 70 degrees Fahrenheit, capable of generating heavy rainfall.
Hurricane Olivia is expected to affect Hawaii with strong winds and heavy rainfall, according to NASA. The Central Pacific Hurricane Center has issued Tropical Storm Warnings for Maui County and a Tropical Storm Watch for Oahu.
Tropical Storm 27W is forecast to intensify over the next three days before making landfall on Sept. 13 over China's Luichow Peninsula. The storm will then emerge into the Gulf of Tonkin, making a final landfall north of Hanoi, Vietnam.
A new approach using a geostationary hyperspectral infrared sounder can significantly improve local severe-storm forecasting by providing high-resolution atmospheric temperature and humidity information. This unprecedented data is crucial for nowcasting and forecasting high-impact weather events.
NASA's Suomi NPP satellite captured an infrared image of Potential Tropical Cyclone Six, revealing a circulation that is gradually becoming less elongated. A Tropical Storm Warning has been issued for the southern Cabo Verde islands as the storm strengthens and is expected to become a tropical storm later today or Saturday.
Tropical Storm Lane underwent significant changes in its strength after being analyzed by NASA's Aqua satellite on August 27. The storm showed powerful thunderstorms east of its center but weakened due to wind shear, only to regain tropical storm status later that day.
The GPM core observatory satellite analyzed rainfall rates and cloud heights of Hurricane Lane on Aug. 22, revealing very heavy rain occurring within the storm's eye wall. The satellite showed moderate to heavy rainfall extending outward from the storm's center, posing a threat to the Hawaiian Islands with powerful storms.
Tropical Storm Bebinca's strong storms lingered within its weakening center, with cloud top temperatures as cold as minus 70 degrees Fahrenheit. The storm is forecast to track further inland across Laos and northern Thailand before dissipating.
Tropical Storm Rumbia was tracked by NASA's Aqua satellite on August 16, showing large storm areas in the northern and southern quadrants. The storm had maximum sustained winds near 40 knots and was forecast to make landfall near Shanghai, prompting a yellow warning from China's National Meteorological Center.
Tropical Storm Hector has two areas of strong convection with cloud top temperatures as cold as minus 70 degrees Fahrenheit, indicating a high potential for heavy rain. The storm is moving west-northwest towards the Johnston Island Atoll at maximum sustained winds of near 40 mph.
Researchers improved soil moisture drought forecasting over the Yellow River Basin by combining climate and land surface hydrology models, achieving higher probabilistic drought forecasting skill and reliability. The multimodel ensemble approach provides valuable information for drought adaptation in this region.
Tropical Storm Kristy has a strong core with cloud top temperatures as cold as minus 70 degrees Fahrenheit, indicating powerful storms capable of heavy rain. The storm is moving north-northeast at 9 mph, with a turn expected later today and gradual weakening by Saturday.
Hurricane Hector maintains its major hurricane status as it moves south of Hawaii, with cloud top temperatures indicating strong storms capable of creating heavy rain. The National Weather Service predicts tropical storm conditions and large surf along the Big Island and Maui, prompting monitoring from interests in Johnston Island.
Typhoon Shanshan was located near 34.5 degrees north latitude and 141.3 degrees east longitude, about 92 nautical miles east-southeast of Yokosuka, Japan, with maximum sustained winds near 70 knots. The storm is forecast to curve northeast and move away from the Big Island.
Hurricane Hector remains a Category 4 storm despite slight weakening, threatening the Big Island of Hawaii with hurricane-force winds and large swells. The storm is expected to pass 165 miles south of the island on Wednesday, bringing tropical storm force winds and potentially hazardous conditions.
Tropical Storm Kristy formed in the Eastern Pacific Ocean on August 7th. Infrared data from NASA's Aqua satellite revealed strong storms at the storm's center, indicating its potential intensity.
Typhoon Shanshan maintained an eye despite weakening due to NASA-NOAA's Suomi NPP satellite capture. The storm weakened on August 6, with deep convection diminishing and eyewall and rain bands becoming less organized.
Tropical Storm Ileana is intensifying off the coast of Mexico, with cloud top temperatures reaching minus 80 degrees Fahrenheit. The National Hurricane Center predicts heavy rain and flash flooding in coastal areas, with possible isolated maximum amounts of 6 inches.
Tropical Storm John strengthened off southwestern Mexico's coast, with cloud top temperatures indicating strong storms capable of heavy rain. The storm is forecast to become a hurricane and produce life-threatening ocean conditions along the Mexican coast.
Tropical Storm Shanshan has triggered warnings in the Marianas Islands due to powerful storms detected by NASA's Terra satellite. The storm is forecast to intensify and move towards Japan, with maximum sustained winds at 50 mph.
Researchers developed a more comprehensive method for measuring the Earth's boundary layer depth using radar, which constantly ebbs and flows. This improvement in accuracy can lead to better forecasts for severe weather events, air pollution, and wildfire forecasting.
Researchers found that Arctic cyclones limit precise sea-ice prediction in the Northern Sea Route due to increased forecast error for large-scale weather features. The TOPAZ4 system, however, was reliable for early summer SIT prediction with a skill level up to 3 days.
Tropical Depression Son-Tinh was located near 21.9 degrees north latitude and 109.0 degrees east longitude, about 181 nautical miles east-northeast of Hanoi, Vietnam. The satellite image captured on July 24 shows the depression's movement towards west, indicating it will dissipate over mainland China in the next day or two.
Tropical Storm Son-Tinh continues to drop rain over Hainan Island and mainland China. The storm has tracked northward at 4 knots and appears to have entered a quasi-stationary state.
Tropical Depression Ampil was located near 37.1 degrees north latitude and 118.2 degrees east longitude on July 2. The storm moved to the north at 17 mph and was forecasted to track back over land in eastern China.
Researchers at Chapman University found that African dust storms can contribute to the development of larger, more powerful hurricanes like Hurricane Sandy. The study, published in IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, aims to improve forecasting for extreme weather events.
A team of researchers found that the sun's rotational cycle influences lightning activity in Japan, with peaks every 24 to 31 days. The solar cycle affects the level of solar activity, which amplifies the rhythm of lightning activity.
Researchers at Virginia Tech used ecological forecasting to predict future growth rates of loblolly pine trees, showing a potential 30% increase in productivity by the middle of the century. The study focused on planted loblolly pine plantations in the Southeastern United States and highlighted uncertainties depending on specific regions.
Typhoon Maria's ragged eyewall is a result of eyewall replacement, where the smaller inner eyewall deteriorates and becomes replaced by a larger outer one. The storm is moving northwest towards Taiwan and China, continuing to weaken.
Typhoon Maria brought heavy rain to Guam, with the National Weather Service issuing a Flash Flood Watch and Small Craft Advisory. The storm is forecast to continue intensifying over the next 24 hours, posing a threat of excessive rainfall and flash flooding.
NASA's Aqua satellite detects Tropical Depression 10W, forecast to intensify into a typhoon. The system is expected to pass over the Marianas late Wednesday night or early Thursday, bringing tropical storm conditions and damaging winds to Guam.
A tropical disturbance brought extremely heavy rainfall to southern Texas, resulting in record-breaking flood levels. Over 15 inches of rain fell in Hidalgo County, with IMERG estimates indicating 21 inches fell in the northwestern Gulf of Mexico.
Tropical Depression Carlotta has weakened into a remnant low pressure area while making landfall in southwestern Mexico. The storm was still producing heavy rainfall over the region before dissipating on June 19.
Tropical Depression Carlotta has powerful storms in fragmented thunderstorms over mainland Mexico and the Eastern Pacific Ocean, with cloud top temperatures as cold as minus 70 degrees Fahrenheit. The National Hurricane Center forecasts heavy rainfall and life-threatening flash floods, especially in areas of higher terrain.
Tropical Depression 04E formed near Mexico's coast on June 14 and was analyzed by NASA's Aqua satellite, which detected the strongest storms in infrared light. The depression brought heavy rainfall to coastal cities, with forecasters predicting life-threatening flash floods and mudslides.
Researchers from the University of Missouri developed a system that improves rainfall forecast accuracy by considering evaporation. This method uses dual-polarization radar to track raindrops and a model assessing atmospheric humidity, resulting in more accurate forecasts for locations 30 miles or more from National Weather Service radar.
Scientists have discovered a new 'teleconnection' that predicts winter rainfall in California by analyzing sea surface temperatures in New Zealand during the summer. This discovery allows for more accurate precipitation predictions and has implications for drought forecasting and regional ecosystem management.
NASA's Terra satellite captured an infrared image of Tropical Depression 08W revealing concentrated areas of strong storms near Taiwan. The storm is forecast to move northeast and exit Taiwan on June 15, affecting several regions with heavy rain and strong winds.
NASA's Aqua satellite captures infrared data on Hurricane Bud, revealing very high and towering thunderstorms near land. The storms have cold cloud top temperatures of minus 80 degrees Fahrenheit, indicating strong uplift and potential for heavy rain.
Researchers found an increase in high waves and winds in the Arctic Ocean due to melting sea ice. This increase poses a significant threat to safe navigation and coastal populations.
Tropical Depression 05W briefly reached tropical storm status before weakening back to a depression. NASA's Aqua satellite captured infrared imagery showing the storm's strength and potential for heavy rainfall.
A new study from University of Chicago researchers finds that 'traffic jams' in the jet stream can cause abnormal weather patterns, such as blocking events. The research develops a mechanistic model to predict long-term weather patterns, including droughts and floods, by comparing the jet stream to highway traffic.