Weather

weather

Climate change linked to specific weather events for the first time

Three extreme weather events that occurred in 2016 would not have been possible in Earth’s pre-industrial climate, according to the sixth annual report on the attribution of extreme weather events issued Dec. 13 by NOAA and the American Meteorological Society (AMS). This marks the first time that researchers have concluded that a specific weather event would not have been possible without the influence of humans.

14 Dec 2017

Comment: Arctic warming and midlatitude weather: Is there a connection?

Over the last few decades, the Arctic has warmed more than the rest of the planet, but is this Arctic amplification influencing weather patterns in the middle latitudes?
04 Dec 2017

Less-developed countries with high climate risk need better access to weather and climate data

Rising seas, more persistent droughts and more frequent severe weather events are predicted to occur in the coming decades as the planet continues warming. In a new study, researchers who analyzed spending internationally on weather and climate information services (WCIS) suggest that access to reliable WCIS is becoming more vital for communities and governments looking to assess their vulnerability and to safeguard people and property amid changing climates.

22 Sep 2017

"Blob"-related warming contributed to Pacific Northwest ozone spike

In June 2015, instruments on Oregon’s Mount Bachelor recorded mean ozone for the month at 56 parts per billion, more than 20 percent higher than the average level for the 11 years prior. Other stations around the West noted similarly high readings, puzzling scientists over the cause of the rise. In a new study in Geophysical Research Letters, researchers describe a confluence of meteorological conditions that appear to have driven the phenomenon.

18 May 2017

Bare Earth Elements: Tour brings hurricane hunting aircraft and expertise to the masses

With hurricane season officially getting under way on May 15 in the Eastern Pacific and June 1 in the Atlantic, NOAA has been busy this week publicizing National Hurricane Preparedness Week, which aims to inform the public about what they can do to prepare for potentially damaging and life-threatening storms. This year, the agency is simultaneously hosting its annual Hurricane Awareness Tour, a week-long traveling exhibition starring hurricane hunting aircraft and their crews. EARTH's Tim Oleson dropped by the tour stop in Washington, D.C., on May 9 to check it out and talk with Rick Knabb, director of the National Hurricane Center.

11 May 2017

Today's weather forecast: Good with a strong chance of improvement

Weather forecasts have improved significantly — roughly one day per decade — since the first numerical, physics-based computer models were implemented in the 1950s. What is needed to continue improving our forecasts?
 
18 Oct 2016

Model targets better understanding of recurring Indian-Pacific storm systems

Scientists have known for decades that the Madden-Julian Oscillation (MJO) — a massive gathering of thunderstorms that forms intermittently over the Indian and western Pacific oceans — impacts regional and global weather. Predicting the impacts, however, has been more difficult because relatively little is known about the phenomenon, at least compared to El Niño and some other weather patterns. But in a new study, scientists have devised a mathematical model that clarifies how the MJO develops and progresses, which may pave the way for more accurate predictions of its effects.

26 Apr 2016

Moving cars could help gauge rainfall

Accurate and timely rainfall measurements are crucial for the design of drainage systems, dams and other modern infrastructure. But rain gauges are often spread too sparsely to provide the necessary coverage in densely populated regions. In parts of Germany, for example, gauges equipped to make hourly readings are especially scarce — just one per 1,800 square kilometers. To help fill in the gaps, researchers at the Leibniz University of Hannover are developing an idea they call “RainCars” — using moving cars to measure rainfall.

23 Jul 2014

Scientists look wider and deeper to predict the next El Nino

Of all climate and weather phenomena, the El Niño Southern Oscillation (ENSO) is not only one of the most well known for its impact on world climate and human life, but is also one of the most puzzling to scientists. For this reason, researchers have begun to take into account a much more global area of climate data than previously considered with the hopes of predicting El Niño or La Niña conditions sooner than is currently possible.

17 Apr 2014

Humans are influencing some extreme weather events, but not all

In 2012, the world experienced dozens of extreme weather events, including droughts, heat waves, cold spells, extreme rainfalls, big storms like Superstorm Sandy, and a record-low Arctic sea-ice extent. Teasing apart the factors that create extreme weather is a challenge for scientists, especially when it comes to determining whether human-induced climate change plays a role. Recently, 18 different research teams — comprising 80 scientists — took on that challenge.

16 Jan 2014

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