Established probabilistic nowcasting methods, such as STEPS and PySTEPS 3, 4, follow the NWP approach of using ensembles to account for uncertainty, but model precipitation following the advection equation with a radar source term. As a result, alternative methods that make predictions using composite radar observations have been used radar data is now available (in the UK) every five minutes and at 1 km × 1 km grid resolution 11. For precipitation at zero to two hours lead time, NWPs tend to provide poor forecasts as this is less than the time needed for model spin-up and due to difficulties in non-Gaussian data assimilation 8, 9, 10. For nowcasting to be useful in these applications the forecast must provide accurate predictions across multiple spatial and temporal scales, account for uncertainty and be verified probabilistically, and perform well on heavier precipitation events that are rarer, but more critically affect human life and economy.Įnsemble numerical weather prediction (NWP) systems, which simulate coupled physical equations of the atmosphere to generate multiple realistic precipitation forecasts, are natural candidates for nowcasting as one can derive probabilistic forecasts and uncertainty estimates from the ensemble of future predictions 7. Nowcasting informs the operations of a wide variety of sectors, including emergency services, energy management, retail, flood early-warning systems, air traffic control and marine services 1, 2. The high-resolution forecasting of rainfall and hydrometeors zero to two hours into the future, known as precipitation nowcasting, is crucial for weather-dependent decision-making. We show that generative nowcasting can provide probabilistic predictions that improve forecast value and support operational utility, and at resolutions and lead times where alternative methods struggle. When verified quantitatively, these nowcasts are skillful without resorting to blurring. Using a systematic evaluation by more than 50 expert meteorologists, we show that our generative model ranked first for its accuracy and usefulness in 89% of cases against two competitive methods. Our model produces realistic and spatiotemporally consistent predictions over regions up to 1,536 km × 1,280 km and with lead times from 5–90 min ahead. Using statistical, economic and cognitive measures, we show that our method provides improved forecast quality, forecast consistency and forecast value. Here we present a deep generative model for the probabilistic nowcasting of precipitation from radar that addresses these challenges. While they accurately predict low-intensity rainfall, their operational utility is limited because their lack of constraints produces blurry nowcasts at longer lead times, yielding poor performance on rarer medium-to-heavy rain events. Recently introduced deep learning methods use radar to directly predict future rain rates, free of physical constraints 5, 6. State-of-the-art operational nowcasting methods typically advect precipitation fields with radar-based wind estimates, and struggle to capture important non-linear events such as convective initiations 3, 4. Precipitation nowcasting, the high-resolution forecasting of precipitation up to two hours ahead, supports the real-world socioeconomic needs of many sectors reliant on weather-dependent decision-making 1, 2.
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DOMINIC LAWSON: Labour's turmoil over the Middle East could be as bitter as John Major's Tory rift on Europe.How Viking runes can transform your life: A fascinating new book claims an ancient runic calendar is the most accurate way to predict your destiny.AI could 'trigger a damaging new wave' of the extreme online content that led to 14-year-old schoolgirl Molly Russell taking her own life, her heartbroken father says.The 'El Chapo of the Cotswolds'? Brit father, 49, who 'ran global £5m drugs racket from small market town' faces 120 years in US jail if guilty of money-laundering and trafficking (as he bullishly tells prosecutors trying to extradite him: 'Bring it on').The WILD lives of the Royals in Kenya! With the King set to arrive for his state visit later, ROBERT HARDMAN recalls how the African nation has seen William's proposal to Kate - and his father facing down a charging elephant.Pete Sampras reveals his actress wife Bridgette, 50, has ovarian cancer and that she is continuing to have treatment for the disease.Horror in Russia's heavily Muslim republic of Dagestan as hate-filled mob storm international airport 'to try and intercept Jewish passengers arriving on flight from Israel': Ukraine's Zelensky leads condemnation as local leaders urge calm.Matthew Perry death LATEST: Stars pay tribute as Friends actor dies aged 54 after 'drowning in jacuzzi at his LA home'.Downcast David Schwimmer flashes a peace sign one day after co-star Matthew Perry's death as he collects Chinese food delivery at home in NYC.Matthew Perry's cause of death is 'deferred' pending toxicology results - but his body is released to family.'You have given so much laughter to so many': Fergie pays Royal tribute to Matthew Perry. 'Fatigued’ Matthew Perry cut short his pickleball game… hours later came the panicked phonecall to his family: TOM LEONARD on the tragic Friends star’s final hours.Devastated Lisa Kudrow thinks Matthew Perry may have drowned 'after taking something that did not mix with warm water': Tragic actor's former Friends co-star is considering adopting his pet DOG, sources reveal. Value: Link to complete list of all metadata fields (because ProductFormFeature with ProductFormFeatureType equal to 12 and ProductFormFeatureValues equal to: 14, 16, 18) 2.9 All Accessibility Metadata Hazard: no Flashing, no Sound, no Motion Simulation This information can be retrieved from ONIX List 81 Code: 10 combined with code list 196 Code: 10 means all text is actual text.Įxample 15 //Product/DescriptiveDetail/ProductFormFeature /ProductFormFeatureValueįor this example, this XPath was evaluated on the ONIX record presented in EXAMPLE 1. This technique relates to Screen Reader Friendly principle. Some of the following examples on EPUB accessibility metadata: the results of the XPath shown are based onĮxample 2. Here is an example of an ONIX record (version 3.0) for describing an audiobook, which will be used as a reference point for the 1.1.2 ONIX record describing an audiobook Images, audio, and video in the publication are well-described in conformance with WCAG 2.0 A. This publication includes mark-up to enable accessibility and compatibility with assistive technology. If you are unfamiliar with ONIX, then there is more documentation available from .Įxample 1. Some accessibility information may only be available when you have access to the file itself. It is important to use ONIX metadata as a complement to the accessibility data embedded within the publication itself, if describing accessible books, books with full audio and related products for the global book supply chain.Īn ONIX file can be used to display accessibility information in advance of publication or when you do not have access to the metadata in the digital file itself. ONIX also only describes a product, it cannot describe the features of the reading systems on which a product may be accessed. These platforms may not yet have the actual files, as they may not yet be ready, or may only choose to list them for sale if they have certain accessibility features. ONIX messages describe products for the global book supply chain and will be sent from publisher or creator of the epub or digital books with full audio to those who will make the products available for sale, lending or subscription. 1.1.2 ONIX record describing an audiobook.W3C Community Final Specification Agreement (FSA) W3C Community Final Specification Agreement (FSA). The Contributors to the Display Techniques for ONIX Accessibility Metadata 1.0 Participate: GitHub w3c/publ-a11y File an issue Commit history Pull requests Display Techniques for ONIX Accessibility Metadata 1.0Ģ7 September 2021 Latest published version: Latest editor's draft: Editor: Gregorio Pellegrino ( Fondazione LIA) This is a developing story and will be updated. The weather service also issued a severe thunderstorm watch for parts of Arkansas, Mississippi and Tennessee, including the city of Memphis, until 4 a.m. The university is located in Conway, Arkansas, just over 30 miles north of Little Rock. ARZ0- NORTHWEST ARKANSAS CITY SKY/WX TMP DP RH WIND PRES REMARKS FAYETTEVILLE. The campus will remain open and business operations will continue,” the university said in a tweet. 000 ASUS44 KLZK 302310 RWRLZK WEATHER ROUNDUP FOR ARKANSAS NATIONAL WEATHER SERVICE LITTLE ROCK AR 600 PM CDT MON NOTE: 'FAIR' INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY. “Due to a power outage and some isolated flooding on campus, all classes are canceled on Tuesday, April 12. The University of Central Arkansas canceled Tuesday classes after the severe weather. There were more than two dozen hail reports in Arkansas and Oklahoma. Olmstead is about 15 miles north of downtown Little Rock.Īs the storm system moved through the state, several tornado warnings were issued and the weather service’s Storm Prediction Center said there were five tornado reports in Arkansas. It was a mild start to February, with temperatures peaking in the 60s to lower 70s on the. Given plenty of moisture in place, a wintry mix of precipitation developed, and lasted through early on the 4th. CT, the weather service reported the tornado was located over Olmstead, or near the air base, moving east at 35 mph. In the pictures: A blast of Arctic air followed a cold front that pushed through Arkansas on. The weather service said the tornado was reported by an observer at Little Rock Air Force Base.Īt 8:19 p.m. “A large, extremely dangerous, and potentially deadly tornado is on the ground,” the National Weather Service said in a tweet at 8:34 p.m. Please consult your device documentation for instructions.A storm system lashing states from Oklahoma into the Midwest brought tornadoes and hail to Arkansas Monday.Ī tornado emergency was declared by the National Weather Service office in Little Rock, Arkansas, for a confirmed large and destructive tornado. Readings at these locations eventually topped out in the lower 80s during. (Union County), Little Rock (Pulaski County), Monticello (Drew County), and Texarkana (Miller County). On mobile devices, you can save the bookmark as an easy-access icon similar to other apps. National Weather Service Forecast Office in Little Rock, Arkansas is your source for the most complete weather forecast and weather related information on the web. For example, if you select "Weather for a location," then select a location, the bookmark will return to your location on your next visit. National Oceanic and Atmospheric Administration National Weather Service Little Rock, AR 8400 Remount Road North Little Rock, AR 72118 (501) 834-0308 Comments Questions Please Contact Us. You may bookmark the URL to return later to the same view with the selected settings. The URL will automatically update as you select the view and settings. National Weather Service Little Rock, AR 8400 Remount Road North Little Rock, AR 72118 (501) 834-0308 Comments Questions Please Contact Us. This view is similar to a radar application on a phone that provides radar, current weather, alerts and the forecast for a location. National Weather Service Forecast Office in Little Rock, Arkansas is your source for the most complete weather forecast and weather related information on the web. This view combines radar station products into a single layer called a mosaic and storm based alerts. This view provides specific radar products for a selected radar station and storm based alerts. This site is organized into views that provide relevant radar products and weather information for a common task or goal. In short, Sam Bankman-Fried was using customer funds to make political donations to Democrats, according to Singh’s testimony. On Monday, former FTX engineering chief Nishad Singh testified that FTX had used stolen customer money from Alameda Research to make political donations, even after learning it owed $13 billion to customers. Speaking of shady Democrat financial shenanigans, alleged multi-billion dollar crypto fraudster Sam Bankman-Fried allegedly gave $1 million in stolen customer money to Beto O’Rourke.“President Joe Biden received a $200,000 personal check from his brother shortly after James Biden received a “shady” loan in the same amount, House Oversight Committee chairman James Comer (R., Ky.) revealed Friday.” If it seems like there’s news of shady Biden influence peddling every week, it’s only because there is…. Navy Destroyer Intercepts Missiles Launched from Yemen, ‘Potentially’ Targeting Israel, Pentagon Says.” I’ve got to wonder how much of Iran’s GDP is spent building crappy missiles to target Israel from its various client states. “Israel Evacuates Northern City as Tensions Flare along Lebanon Border.” I keep checking Livemap, and I’m not seeing the sort of activity I would expect if Hezbollah were really getting ready to throw-down with the IDF, but I’m sure they want Israel to think they’re ready to act when the Gaza operation proper gets under way.“Tanks line up at Gaza border as ground invasion appears imminent.” I swear I’ve seen some variation of this headline every day this week, though.Israel’s land incursion into Gaza is still pending, more Democratic Party graft, another House Speaker aspirant drops out, and media flame outs at Disney and Apple. Iraqi Prisoner Claims He Was Raped.No job yet, but my dogs and I are all doing fine. The Ace of Spades HQ Sex-for-Money Skankathon Secret John Kerry Senatorial AccomplishmentsĬhanges Liberal Senator George Michell Will Make at Disney Media-Approved Facts About the Democrat SpyĬhanges to Make Christianity More "Inclusive" Other Judgments Dick Clarke Made About Condi Rice Based on Her Appearance Signs That David Letterman Just Doesn't Care AnymoreĮxamples of Bob Kerrey's Insufferable Racial Jackassery Other Bad Things About the Jews, According to the Koran Signs that Paul Krugman Has Lost His Frickin' MindĪll-Time Best NBA Players, According to Senator Robert Byrd Things People Are More Likely to Say Than "Did You Hear What Al Franken Said Yesterday?" Signs That You, Geroge Michael, Should Probably Just Give It Up Nicknames for Potatoes, By People Who Really Hate Potatoes That mascot is so badass he tells Batman "Suck my dick" and Batman says "Maximum eye contact, or no eye contact? Sir?" This is a statue of the III Corps' base mascot, which they call "Phantom Warrior." This picture represents for men of a certain age (nearly 29) all that is good and desirous in life. That only recommends it more.įor those who can't view Twitter, 1, congrats, it's a timesuck that reduces life expectancy, and 2, here are the pictures.īelow is Frank Frazetta's immortal pulp masterpiece "Death Dealer," painted, they say, in 1973. Searching on III Corps, I also found reference to some program to rehabilitate low-level offenders (drunk drivers, etc.) in the Army into more law-abiding soldiers located at the base. The evidence justifying the selection of this base is unassailable and none dare stand before One of the military bases I grew up on had a corps headquarters which used this character for their 'Phantom Warrior' mascot: /NIzixlKS8e- Christian Erichsen February 9, 2017 The Official Army Headquarters Base of the Ace of Spades HQ Has Been SelectedĪfter long minutes of contemplation, the III Corps Headquarters located in Fort Hood, Texas, has been chosen as the Official Army Headquarters of the Ace of Spades HQ blog. |
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