https://www.economist.com/science-and-technology/2023/07/26/the-high-tech-race-to-improve-weather-forecasting QT:{{” A 2021 collaboration between DeepMind, a part of Google, and the Met Office in Britain used AI to forecast precipitation based on observations from rain-detecting radar. The AI system outperformed existing, numerical forecasting methods nine times out of ten—though it started to stumble when asked to forecast beyond about 90 minutes. Other big firms with AI expertise are getting involved, too. A paper published in Nature on July 5th described Pangu-Weather, an AI system built by Huawei, a Chinese firm, and trained on 39 years of weather data. Huawei claims Pangu-Weather can produce week-ahead predictions comparable in accuracy to forecasts from outfits like ECMWF, but thousands of times faster. Last year Nvidia, an American chipmaker, claimed that FourCastNet, its AI weather program, could generate, in two seconds, a forecast that can predict hurricanes and heavy rain up to a week in advance. “}}
Posts Tagged ‘weather’
The high-tech race to improve weather forecasting
April 20, 2026How Much Snow Should You Expect? Look Up Your Forecast. – The New York Times
February 13, 2022QT:{{”
It has also begun publishing a different type of map, one that shows the chances of snowfall reaching a certain threshold. In the case of this weekend’s storm, as of Friday morning it estimated that New York City had a 30 percent to 50 percent chance of receiving at least eight inches of snow in 24 hours.
“People might look at that and say, ‘It’s more likely that it won’t happen,’” Mr. Lamers said. “But, of course, 30 percent events happen all the time. The best players in baseball: That’s how often they get a hit.”
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https://www.nytimes.com/interactive/2022/01/27/upshot/snow-forecast.html
Snow depth and snow accumulation lookup by city, ZIP code, or state
January 29, 2022How much rain did NY, NJ, CT get from nor’easter?
November 13, 2021https://www.fox5ny.com/news/how-much-rain-did-noreaster-bring-to-tristate
On Tue 26 Oct. 2021
JFK got 3.25″ &
Bridgeport got 2.9″
I was running in the rain at 8 am with .35″/hr falling !
Why does high pressure mean nice weather and low pressure mean rain? Weather you’d like to know – cleveland.com
July 3, 2021Dark Sky – Rogers St, Branford Center, CT
August 16, 2020Winter Weather Forecast For New York City: Here’s What To Expect In 2017-18 – New York City, NY Patch
December 16, 2017Surprisingly accurate forecast in Oct. ’17
https://patch.com/new-york/new-york-city/winter-forecast-new-york-city-heres-what-expect-2017-18
Winter is Coming
November 22, 2017QT:{{”
Choose the Right Clothes Wear loose, lightweight, warm clothes in layers. Trapped air insulates. Remove layers to avoid perspiration and subsequent chill. Outer garments should be tightly woven, water repellent, and hooded. Wear a hat. Half of your body heat loss can occur from the head. Cover your mouth to protect your lungs from extreme cold. Mittens, snug at the wrist, are better than gloves. Try to stay dry. Wear sturdy waterproof and slip resistant boots or shoes. You will spend a lot of time outside walking to and from your classes or your lab and wearing warm gear is key to your safety and comfort. Understand the Hazards Wind Chill: How wind and cold feel on exposed skin (this is not the actual temperature). As the wind increases, heat is carried away from your body at an accelerated rate, driving down your body temperature.
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http://ehs.yale.edu/sites/default/files/files/Safety-Bulletins/nov2017.pdf
How to Follow Hurricane Irma
September 16, 2017How to Follow #HurricaneIrma
https://www.NYTimes.com/2017/09/06/upshot/how-to-follow-hurricane-irma.html Presentations of weather #uncertainty – cones, spaghetti plots, ensemble forecasts, &c
QT:{[”
Besides individual model runs, there are two other types of
model-based maps you might see on the internet. They’re both “spaghetti plots,” which depict many forecast tracks…..
While you might think that these capture the full range of
uncertainty, they often do not. They’re even more prone to understate the total uncertainty than the N.H.C. “cone.”
…
Another type of spaghetti plot shows an ensemble forecast. Unlike a typical “determinist” forecast, which takes current conditions and simulates a single scenario forward, an ensemble model varies initial conditions slightly and then simulates, propagating uncertainty through the forecast.
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Windy, Windyty. Wind map & weather forecast
September 10, 2017Windy.com/24.740/-80.981?24.169,-80.980,8,m:empadUc Great site for visualizing #HurricaneIrma. Interactive #weather maps for T, P & rainfall in addition to the wind
linkstream2 microblog 