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What does 'chance of precipitation' really mean? A meteorologist explains.

Popular Science

What does'chance of precipitation' really mean? Here's how to figure out if you can leave the umbrella at home. It's not always "when it rains, it pours." Breakthroughs, discoveries, and DIY tips sent every weekday. Understanding the weather forecast can sometimes feel like reading tea leaves.


Thanksgiving chaos looms for millions of Americans as massive coast-to-coast storm threatens to cripple holiday travel

Daily Mail - Science & tech

Leaked recording reveals Campbell's exec's sickening remarks about iconic soup's ingredients How Lauren Sanchez would REALLY look if she'd never had rumored plastic surgery Trump's losing control... MAGA's imploding... and White House insiders tell me why they're REALLY worried: ANDREW NEIL Billionaire family posts VERY unusual obituary after heir, 40, met violent end at $2.8m hunting lodge following marriage scandal These women have lost as much as nine stone WITHOUT jabs: Now they reveal secret to their stunning success, the extraordinary event that brought them together and how it's changed their lives... Judge throws out Comey and James cases as Trump's beauty queen prosecutor is humiliated Her moving videos about the handsome boyfriend who ghosted her went viral and catapulted her to overnight fame. Kate Gosselin's ex Jon is seen at his splashy wedding for the first time as son Collin weighs in on his siblings not attending Fugitive'Slender Man' stabber Morgan Geyser snapped'just Google me' when asked for ID by cops who found her with MUCH older lover It all seems to be falling apart now! Pete Hegseth drops hammer on Democrat senator in'sedition' storm as court martial looms after Trump's execution threat Sabrina Carpenter looks unrecognisable in throwback snap from seven years ago as fans call her rebranding'wild' Neuralink's'Patient 4' feared missing months after getting revolutionary brain chip... now his wife tells the REAL heartbreaking story NFL's first transgender cheerleader makes explosive allegation against Carolina Panthers Slash your cholesterol by a third in just a month... hundreds of thousands are on a new diet that's transforming lives. A'coast-to-coast storm' could throw the holiday plans for millions of Americans into chaos as a record number of people travel this week for Thanksgiving . Meteorologists said the fast-moving system will impact travelers in the Southwest on Monday, before quickly affecting millions in the Midwest and then bringing a wintry blast to the Northeast on Wednesday.


Warning over 'life-threatening' storm brewing in Atlantic that could hit US

Daily Mail - Science & tech

Doctor's husband'was watching X-rated videos in his house while daughter, two, died in roasting car outside' Dems hand out'Is he dead yet?' bracelet to child at Wisconsin farmers' market Warning over'life-threatening' storm brewing in Atlantic that could hit US Bella Hadid's health battle takes dark turn: Loved ones reveal hellish new details about'missing' model... as ominous texts emerge Florida's housing market is flashing a warning for the rest of the US America's saddest lost soul can no longer SPEAK and spends days hitting herself'after years of unspeakable abuse by gangs of men' Pete Hegseth's jet makes emergency landing after high-stakes NATO summit on Russia-Ukraine war'You will DIE if you do not remove your breasts', doctors screamed at me. I refused and tried a new experimental therapy instead... now I'm cancer-free Now scientists redefine'obese' - and they've made up to 60% more people'fat' Will Trump's Gaza peace deal fail? Policy expert MARK DUBOWITZ breaks down all the forces at play... and how the president can actually pull this off Shocking moment brazen gunman opens fire at Michigan businessman's Land Rover in daylight attack Astonishing interactive map lays bare where MILLIONS of homes will be submerged by water within a few years... are YOU at risk? America's most renowned'prophet' makes startling prediction about alien'mothership' Ugly divorce war between Mitt Romney's wealthy brother and estranged wife before she was found dead Virginia Guiffre calls Prince Andrew'entitled' and claims duke saw having sex with her as his'birthright' in autobiography released after her death Warning over'life-threatening' storm brewing in Atlantic that could hit US Meteorologists issued an alert on Thursday, warning of a tropical system forming in the Atlantic that could pose a threat in the coming weeks . AccuWeather is tracking a tropical wave off the coast of Africa, which is expected to reach the eastern Caribbean islands late this weekend. Tropical waves are clusters of scattered showers and thunderstorms that form over Africa or the Indian Ocean and slowly move west across the Atlantic Ocean.


Meteorologist's stark warning to Americans to brace for a harsh winter with less snow but more nor'easters

Daily Mail - Science & tech

'Four dead and 12 injured' in Mississippi shooting after people descend on town for homecoming game Joe Biden, 82, receiving new treatment after'aggressive' cancer spread to his bones REVEALED: The secret George Soros network'behind America's street chaos'... and the dossier that shows how to stop it Tinnitus destroyed Peter's life but doctors dismissed him. Then he tried an extraordinary drug-free University of Cambridge-backed treatment that gives instant relief - no wonder medics say it's so'exciting' KENNEDY: Obama's bitter post about Trump's Gaza peace deal proves what I've long suspected about Barry... and it would make Sigmund Freud blush Gold is soaring... here's what the pros say you should do with your 401(k) before it's too late Model dubbed'the world's most beautiful girl' when she was six is now all grown up and looks VERY different as she poses up a storm at Paris Fashion Week Teacher was'so high on cocaine she thought one of her students was her dog' But now, a royal insider claims they're'just as entitled as their parents' with'shady friends' Heartbreaking moment NFL reporter makes brutal comment about player Xavier Legette's dead father in locker room interview Experts reveal the surprising TRUTH behind RFK Jr's link between circumcision and autism Bombshell records that damn Letitia James and show Trump was RIGHT... and the staggering sum she was swindling Trump starts DOGE 2.0 as mass layoffs take place across federal government amid shutdown Famed'Big Short' investor gives terrifying verdict on Trump hammering China with 100 PERCENT tariff... and issues doomsday warning to Wall Street Jennifer Aniston, you've betrayed every woman with your selfish admission about not having children: CAROLINE BULLOCK Meteorologist's stark warning to Americans to brace for a harsh winter with less snow but more nor'easters Meteorologists are already predicting what the winter months will bring, with some regions of the US expected to see less snow than last year, and nor'easters anticipated to ravage parts of the Northeast. Paul Pastelok, chief meteorologist for AccuWeather's long-range forecasting team, told the Daily Mail that while he didn't expect above normal snowfall for the winter season, he warned that those in the Northeast should brace for nor'easters and it would still be a harsh winter. Pastelok explained that the nor'easter over this weekend is on trend with what is to come, as rapidly developing storms come in off the East Coast. 'People may say, Well, you're forecasting less snow, so it doesn't look like a harsh winter.


There are actually 9 types of precipitation

Popular Science

Amazon Prime Day is live. See the best deals HERE. Weather models still struggle to parse the millions of datapoints involved in precipitation prediction. Breakthroughs, discoveries, and DIY tips sent every weekday. Most of us generally think of precipitation in terms of three varieties: rain, snow, and sleet .


A record-breaking lightning bolt just 'shocked' meteorologists

Popular Science

Breakthroughs, discoveries, and DIY tips sent every weekday. In October 2017, a single flash of lightning during a thunderstorm streaked across the Great Plains for 515 miles. The flash traveled from eastern Texas all the way to Kansas City--and now into the record books. The World Meteorological Organization (WMO) certified that this megaflash is now the longest single lightning flash in the United States. The massive lightning bolt is detailed in a study published July 31 in the Bulletin of the American Meteorological Society.


Weather forecasting improves with AI, but we still need humans

Popular Science

Breakthroughs, discoveries, and DIY tips sent every weekday. Weather forecasts are notoriously unreliable. Most people can relate to booking a trip or making plans expecting a sunny day, only to have it disappointingly rained out. While seven-day weather forecasts are accurate about 80 percent of the time, that figure drops to around 50 percent when extended to 10 days or more. Recent staffing cuts at the National Weather Service have already led to reduced weather balloon data collection, which experts warn could further degrade forecast accuracy.


Advancing Meteorological Forecasting: AI-based Approach to Synoptic Weather Map Analysis

Choi, Yo-Hwan, Kang, Seon-Yu, Cheon, Minjong

arXiv.org Artificial Intelligence

As global warming increases the complexity of weather patterns; the precision of weather forecasting becomes increasingly important. Our study proposes a novel preprocessing method and convolutional autoencoder model developed to improve the interpretation of synoptic weather maps. These are critical for meteorologists seeking a thorough understanding of weather conditions. This model could recognize historical synoptic weather maps that nearly match current atmospheric conditions, marking a significant step forward in modern technology in meteorological forecasting. This comprises unsupervised learning models like VQ-VQE, as well as supervised learning models like VGG16, VGG19, Xception, InceptionV3, and ResNet50 trained on the ImageNet dataset, as well as research into newer models like EfficientNet and ConvNeXt. Our findings proved that, while these models perform well in various settings, their ability to identify comparable synoptic weather maps has certain limits. Our research, motivated by the primary goal of significantly increasing meteorologists' efficiency in labor-intensive tasks, discovered that cosine similarity is the most effective metric, as determined by a combination of quantitative and qualitative assessments to accurately identify relevant historical weather patterns. This study broadens our understanding by shifting the emphasis from numerical precision to practical application, ensuring that our model is effective in theory practical, and accessible in the complex and dynamic field of meteorology.


How Meteorologists Are Using AI to Forecast Hurricane Milton and Other Storms

TIME - Tech

On Wednesday evening, Hurricane Milton will become the fifth hurricane in 2024 to make landfall in the mainland U.S. As storms like this one grow more frequent and intense, artificial intelligence is playing an increasingly central role in efforts by meteorologists and other scientists to track these storms and mitigate their harms. For years, meteorologists have built complex forecasting models of storms based on wind speeds, temperature, humidity and other factors, and recorded via readings from planes, buoys and satellites. But these models can take hours to produce updated forecasts. Machine learning models, on the other hand, draw upon vast knowledge of the earth's atmosphere and data from how previous storms have unfolded. They excel at pattern recognition, teasing out trends that most humans can't discern in a fraction of the time.


Modeling the Feedback of AI Price Estimations on Actual Market Values

Silaghi, Viorel, Alssadi, Zobaida, Mathew, Ben, Alotaibi, Majed, Alqarni, Ali, Silaghi, Marius

arXiv.org Artificial Intelligence

Public availability of Artificial Intelligence generated information can change the markets forever, and its factoring into economical dynamics may take economists by surprise, out-dating models and schools of thought. Real estate hyper-inflation is not a new phenomenon but its consistent and almost monotonous persistence over 12 years, coinciding with prominence of public estimation information from Zillow, a successful Mass Real Estate Estimator (MREE), could not escape unobserved. What we model is a repetitive theoretical game between the MREE and the home owners, where each player has secret information and expertise. If the intention is to keep housing affordable and maintain old American lifestyle with broad home-ownership, new challenges are defined. Simulations show that a simple restriction of MREE-style price estimation availability to opt-in properties may help partially reduce feedback loop by acting on its likely causes, as suggested by experimental simulation models. The conjecture that the MREE pressure on real estate inflation rate is correlated with the absolute MREE estimation errors, which is logically explainable, is then validated in simulations.