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A 2-week weather forecast may be as good as it gets

Science

Since the 1980s, supercomputer-powered weather models have added a new day of predictive power with each new decade. Today, the best forecasts run out to 10 days with real skill, leading meteorologists to wonder just how much further useful forecasts can go. A new study suggests a humbling answer: another 4 or 5 days. A seminal 1969 paper by Edward Lorenz introduced what would later be dubbed the "butterfly effect": The chaotic, nested turbulent flows of the atmosphere would make it impossible to forecast the weather after 2 weeks, he suggested. Until recently, however, global weather models have been unable to render the small-scale cloud-forming processes that drive such chaos.


The coronavirus pandemic could make weather forecasts less accurate

New Scientist

Grounding the world's commercial airliners in an attempt to stop the coronavirus crossing international borders could have an unexpected effect: weather forecasts may get less accurate. That is because commercial planes often carry meteorological instruments and the readings they gather feed into weather forecasting models. With most flights cancelled, this valuable dataset has been temporarily lost. Stan Benjamin at the US National Oceanic and Atmospheric Administration says a similar situation occurred in 2010. That spring, the ash-laden eruption of Iceland's Eyjafjallajökull volcano triggered Europe's biggest shutdown …


National weather forecast: Winter weather hangs on in the West

FOX News

Janice Dean has your FoxCast. Winter weather continues to hang on across the West with heavy snow for the Rockies including Colorado and Wyoming on Wednesday. Travel will be difficult in some of these areas in the next few days. Heavy rain will be the story across the Gulf of Mexico as moisture surges northward, prompting flooding concerns from Louisiana through the Florida Panhandle. A slow-moving system across the Great Lakes is still bringing unsettled weather to the region.


Today's official Masters weather forecast

Los Angeles Times

It will be a spectacular Sunday at the Masters as high pressure moves directly overhead and provides abundant sunshine and low humidity. Cool temperatures this morning quickly warm into the 60s, and then into the upper 70s this afternoon. A light breeze early turns south to southeast this afternoon up to 4 to 8 mph. Temperatures continue to warm into Monday with light winds and mostly sunny skies.